1
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Guo X, Li J, Meng F, Qin D, Wu X, Lv Y, Guo J. Ru nanoparticles modified Ni 3Se 4/Ni(OH) 2 heterostructure nanosheets: A fast kinetics boosted bifunctional overall water splitting electrocatalyst. J Colloid Interface Sci 2024; 663:847-855. [PMID: 38447399 DOI: 10.1016/j.jcis.2024.02.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/24/2024] [Accepted: 02/26/2024] [Indexed: 03/08/2024]
Abstract
Properly design and manufacture of bifunctional electrocatalysts with superb performance and endurance are crucial for overall water splitting. The interfacial engineering strategy is acknowledged as a promising approach to enhance catalytic performance of overall water splitting catalysts. Herein, the Ru nanoparticles modified Ni3Se4/Ni(OH)2 heterostructured nanosheets catalyst was constructed using a simple two-step hydrothermal process. The experimental results demonstrate that the abundant heterointerfaces between Ru and Ni3Se4/Ni(OH)2 can increase the number of active sites and effectively regulate the electronic structure, greatly accelerating the kinetics of the hydrogen evolution reaction (HER)/oxygen evolution reaction (OER). As a result, the Ru/Ni3Se4/Ni(OH)2/NF catalyst exhibits the low overpotential of 102.8 mV and 334.5 mV at 100 mA cm-2 for HER and OER in alkaline medium, respectively. Furthermore, a two-electrode system composed of the Ru/Ni3Se4/Ni(OH)2/NF requires a battery voltage of just 1.51 V at 10 mA cm-2 and remains stable for 200 h at 500 mA cm-2. This work provides an effective strategy for constructing Ru-based heterostructured catalysts with excellent catalytic activity.
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Affiliation(s)
- Xinyu Guo
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, PR China
| | - Jiaxin Li
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, PR China
| | - Fanze Meng
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, PR China
| | - Dongdong Qin
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, PR China
| | - Xueyan Wu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, PR China
| | - Yan Lv
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, PR China.
| | - Jixi Guo
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, PR China.
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2
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Tan R, Wang X, Kong Y, Ji Q, Zhan Q, Xiong Q, Mu X, Li L. Liberating C-H Bond Activation: Achieving 56% Quantum Efficiency in Photocatalytic Cyclohexane Dehydrogenation. J Am Chem Soc 2024; 146:14149-14156. [PMID: 38717984 DOI: 10.1021/jacs.4c02792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
The technology of liquid organic hydrogen carriers presents great promise for large-scale hydrogen storage. Nevertheless, the activation of inert C(sp3)-H bonds in hydrocarbon carriers poses formidable challenges, resulting in a sluggish dehydrogenation process and necessitating high operating temperatures. Here, we break the shackles of C-H bond activation under visible light irradiation by fabricating subnanometer Pt clusters on defective Ce-Zr solid solutions. We achieved an unprecedented hydrogen production rate of 2601 mmol gcat.-1 h-1 (turnover frequency >50,000 molH2 molPt-1 h-1) from cyclohexane, surpassing the most advanced thermo- and photocatalysts. By optimizing the temperature-dominated hydrogen transfer process, achievable by harnessing hitherto wasted infrared light in sunlight, an astonishing 56% apparent quantum efficiency and a 5.2% solar-to-hydrogen efficiency are attained at 353 K. Our research stands as one of the most effective photocatalytic processes to date, holding profound practical significance in the utilization of solar energy and the exploitation of alkanes.
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Affiliation(s)
- Ruike Tan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Xinhui Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Yuxiang Kong
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Qing Ji
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Qingyun Zhan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Qingchuan Xiong
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Xiaoyue Mu
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Lu Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
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3
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Irfan FRM, Masters SL. Structural and thermochemical investigation of 1,3-bis(λ 4-boraneyl)-1λ 4,3λ 4-imidazolidine adduct for chemical hydrogen storage. Phys Chem Chem Phys 2024. [PMID: 38771236 DOI: 10.1039/d3cp05952a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
The structure, thermochemical properties and reaction pathways of a cyclic amine diborane complex (1,3-bis(λ4-boraneyl)-1λ4,3λ4-imidazolidine) were investigated using quantum chemical calculations. Structural and thermochemical analysis revealed that the simultaneous and spontaneous elimination of both hydrogen molecules from this complex is predicted to occur under thermoneutral conditions. This observation is further supported by the investigation of the BH3-catalysed dehydrogenation pathway. The calculated thermochemical parameters indicate that the energy requirements for hydrogen release from this complex are minimal, suggesting efficient hydrogen release capability under suitable conditions. Additionally, the activation barriers, ∼75 and ∼20 kJ mol-1 for the first and second dihydrogen release from the catalysed dehydrogenation reactions of this compound exhibit moderate kinetics, confirmed by kinetic studies. These findings and the ability of the system to easily release two molecules of dihydrogen emphasize the potential of 1,3-bis(λ4-boraneyl)-1λ4,3λ4-imidazolidine as a highly effective hydrogen storage material.
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Affiliation(s)
- Fathima Rifana Mohamed Irfan
- School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4100, Christchurch 8140, New Zealand.
| | - Sarah L Masters
- School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4100, Christchurch 8140, New Zealand.
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4
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Yavari A, Harrison CJ, Gorji SA, Shafiei M. Hydrogen 4.0: A Cyber-Physical System for Renewable Hydrogen Energy Plants. SENSORS (BASEL, SWITZERLAND) 2024; 24:3239. [PMID: 38794094 PMCID: PMC11125211 DOI: 10.3390/s24103239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 05/02/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024]
Abstract
The demand for green hydrogen as an energy carrier is projected to exceed 350 million tons per year by 2050, driven by the need for sustainable distribution and storage of energy generated from sources. Despite its potential, hydrogen production currently faces challenges related to cost efficiency, compliance, monitoring, and safety. This work proposes Hydrogen 4.0, a cyber-physical approach that leverages Industry 4.0 technologies-including smart sensing, analytics, and the Internet of Things (IoT)-to address these issues in hydrogen energy plants. Such an approach has the potential to enhance efficiency, safety, and compliance through real-time data analysis, predictive maintenance, and optimised resource allocation, ultimately facilitating the adoption of renewable green hydrogen. The following sections break down conventional hydrogen plants into functional blocks and discusses how Industry 4.0 technologies can be applied to each segment. The components, benefits, and application scenarios of Hydrogen 4.0 are discussed while how digitalisation technologies can contribute to the successful integration of sustainable energy solutions in the global energy sector is also addressed.
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Affiliation(s)
- Ali Yavari
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, VIC 3122, Australia; (C.J.H.); (M.S.)
- Hydrogen 4.0 Lab, Swinburne University of Technology, Melbourne, VIC 3122, Australia;
- 6G Research and Innovation Lab, Swinburne University of Technology, Melbourne, VIC 3122, Australia
| | - Christopher J. Harrison
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, VIC 3122, Australia; (C.J.H.); (M.S.)
- Hydrogen 4.0 Lab, Swinburne University of Technology, Melbourne, VIC 3122, Australia;
- Department of Aerospace and Aviation, School of Engineering, Royal Melbourne Institute of Technology, Melbourne, VIC 3001, Australia
| | - Saman A. Gorji
- Hydrogen 4.0 Lab, Swinburne University of Technology, Melbourne, VIC 3122, Australia;
- School of Engineering, Deakin University, Melbourne, VIC 3122, Australia
| | - Mahnaz Shafiei
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, VIC 3122, Australia; (C.J.H.); (M.S.)
- Hydrogen 4.0 Lab, Swinburne University of Technology, Melbourne, VIC 3122, Australia;
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5
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Ciatto G, Filippone F, Polimeni A, Pettinari G. Exceptional Hydrogen Uptake in Crystalline In xGa 1-xN Semiconductors. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38758944 DOI: 10.1021/acsami.4c01371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2024]
Abstract
The irradiation of InN and InxGa1-xN samples with low-energy H ions results in exceptionally high hydrogen uptake in a crystalline semiconductor. This phenomenon is attributed to specific In-H complex formation. By exploiting spectral fingerprints of the In-H complexes observable in In L3-edge X-ray absorption spectroscopy, we provide direct evidence of complex formation. Density functional theory calculations assist in interpreting the X-ray absorption spectra and offer insights into the energetics of complex formation. We quantify the total amount of reversibly incorporated hydrogen in these semiconductors and discuss their strengths and weaknesses as innovative materials for hydrogen storage.
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Affiliation(s)
- Gianluca Ciatto
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP48, 91192 Gif-sur-Yvette Cedex, France
| | - Francesco Filippone
- National Research Council, Istituto di Struttura della Materia (ISM-CNR). Via Salaria Km 29.5, 00016 Monterotondo Stazione, Italy
| | - Antonio Polimeni
- Physics Department, Sapienza University of Rome. P.le A. Moro 2, 00185 Roma, Italy
| | - Giorgio Pettinari
- National Research Council, Institute for Photonics and Nanotechnologies (IFN-CNR), Via del Fosso del Cavaliere 100, 00133 Roma, Italy
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6
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Rezić I, Meštrović E. Challenges of Green Transition in Polymer Production: Applications in Zero Energy Innovations and Hydrogen Storage. Polymers (Basel) 2024; 16:1310. [PMID: 38794503 PMCID: PMC11124979 DOI: 10.3390/polym16101310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/21/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024] Open
Abstract
The green transition in the sustainable production and processing of polymers poses multifaceted challenges that demand integral comprehensive solutions. Specific problems of presences of toxic trace elements are often missed and this prevents shifting towards eco-friendly alternatives. Therefore, substantial research and the development of novel approaches is needed to discover and implement innovative, sustainable production materials and methods. This paper is focused on the most vital problems of the green transition from the aspect of establishing universally accepted criteria for the characterization and classification of eco-friendly polymers, which is essential to ensuring transparency and trust among consumers. Additionally, the recycling infrastructure needs substantial improvement to manage the end-of-life stage of polymer products effectively. Moreover, the lack of standardized regulations and certifications for sustainable polymers adds to the complexity of this problem. In this paper we propose solutions from the aspect of standardization protocols for the characterization of polymers foreseen as materials that should be used in Zero Energy Innovations in Hydrogen Storage. The role model standards originate from eco-labeling procedures for materials that come into direct or prolonged contact with human skin, and that are monitored by different methods and testing procedures. In conclusion, the challenges of transitioning to green practices in polymer production and processing demands a concerted effort from experts in the field which need to emphasize the problems of the analysis of toxic ultra trace and trace impurities in samples that will be used in hydrogen storage, as trace impurities may cause terrific obstacles due to their decreasing the safety of materials. Overcoming these obstacles requires the development and application of current state-of-the-art methodologies for monitoring the quality of polymers during their recycling, processing, and using, as well as the development of other technological innovations, financial initiatives, and a collective commitment to fostering a sustainable and environmentally responsible future for the polymer industry and innovations in the field of zero energy applications.
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Affiliation(s)
- Iva Rezić
- Department of Applied Chemistry, Faculty of Textile Technology, University of Zagreb, 10000 Zagreb, Croatia
| | - Ernest Meštrović
- Faculty of Chemical Engineering and Technology, University of Zagreb, 10000 Zagreb, Croatia;
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7
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Sun Y, Xiao Y, Ren L, Cheng Z, Niu Y, Li Z, Zhang S. Pyrrolic Nitrogen Boosted H 2 Generation from an Aqueous Solution of HCHO at Room Temperature by Metal-Free Carbon Catalysts. J Phys Chem Lett 2024; 15:4538-4545. [PMID: 38636086 DOI: 10.1021/acs.jpclett.4c00283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Hydrogen production from organic hydrides represents a promising strategy for the development of safe and sustainable technologies for H2 storage and transportation. Nonetheless, the majority of existing procedures rely on noble metal catalysts and emit greenhouse gases such as CO2/CO. Herein, we demonstrated an alternative N-doped carbon (CN) catalyst for highly efficient and robust H2 production from an aqueous solution of formaldehyde (HCHO). Importantly, this process generated formic acid as a valuable byproduct instead of CO2/CO, enabling a clean H2 generation process with 100% atom economy. Mechanism investigations revealed that the pyrrolic N in the CN catalysts played a critical role in promoting H2 generation via enhancing the transformation of O2 to generate •OO- free radicals. Consequently, the optimized CN catalysts achieved a remarkable H2 generation rate of 13.6 mmol g-1 h-1 at 30 °C. This finding is anticipated to facilitate the development of liquid H2 storage and its large-scale utilization.
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Affiliation(s)
- Yu Sun
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Yiting Xiao
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Lei Ren
- Longnan Ecological Environment Monitoring Center of Gansu Province, Longnan 746000, China
| | - Ziheng Cheng
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Yaning Niu
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Zhichu Li
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Sai Zhang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
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8
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Mitra A, Kuo HY, Huang JH, Rachel G, Chu WH, Chiu WC, Kuo JK, Liu CP. Nano-Si for On-Demand H 2 Production: Optimization of Yield and Real-Time Visualization of Si─H 2O Reaction Using Liquid-Phase Transmission Electron Microscopy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307350. [PMID: 38072806 DOI: 10.1002/smll.202307350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/16/2023] [Indexed: 05/25/2024]
Abstract
Hydrogen (H2), the most abundant element in the universe, has the potential to address the challenges of energy security and climate change. However, due to the lack of a safe and efficient method for storing and delivering hydrogen, its practical application is still in its infancy stages. To overcome this challenge, a promising solution is demonstrated in the form of on-demand production of H2 using nano-Silicon (Si) powders. The method offers instantaneous production of H2, yielding a volume of 1.3 L per gram of Si at room temperature. Moreover, the H2 production yield and the rate can be effectively controlled by adjusting the reaction pH value and temperatures. Additionally, liquid-phase transmission electron microscopy (LPTEM) is utilized in situ to demonstrate the entire reaction in real-time, wherein H2 bubble formation is observed and illustrated the gradual conversion of crystalline Si particles into amorphous oxides. Moreover, it is confirmed that the purity of the generated gas is 99.5% using gas chromatography mass spectrometry (GC-MS). These findings suggest a viable option for instant H2 production in portable fuel cells using Si cartridges or pellets.
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Affiliation(s)
- Arijit Mitra
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701, Taiwan
| | - Hsueh-Yuan Kuo
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701, Taiwan
| | - Jun-Han Huang
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701, Taiwan
| | - Gunalan Rachel
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701, Taiwan
| | - Wen-Huei Chu
- Core Facility Center, National Cheng Kung University, Tainan, 701, Taiwan
| | - Wei-Cheng Chiu
- Green Energy Technology Research Center, Kun Shan University, Tainan, 710303, Taiwan
| | - Jenn-Kun Kuo
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung, 804, Taiwan
| | - Chuan-Pu Liu
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701, Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan, 701, Taiwan
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9
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Jing Y, Zhou S, Liu J, Yang H, Liang J, Peng L, Li Z, Xia Y, Zhang H, Xu F, Sun L, Novoselov KS, Huang P. Unveiling the destabilization of sp 3 and sp 2 bonds in transition metal-modified borohydrides to improve reversible dehydrogenation and rehydrogenation. J Colloid Interface Sci 2024; 661:185-195. [PMID: 38301457 DOI: 10.1016/j.jcis.2024.01.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/06/2024] [Accepted: 01/24/2024] [Indexed: 02/03/2024]
Abstract
Borohydrides offer promise as potential carriers for hydrogen storage due to their high hydrogen concentration. However, the strong chemical bonding within borohydrides poses challenges for efficient hydrogen release during usage and restricts the re-hydrogenation process when attempting to regenerate the material. These high thermodynamic and kinetic barriers present obstacles in achieving reversible de-hydrogenation and re-hydrogenation of borohydrides, impeding their practical application in hydrogen storage systems. Employing density functional theory calculations, we conduct a comprehensive investigation into the influence of transition metals on both the BH4 cluster, a fundamental building block of borohydrides, and pure boron, which is formed as the end product following hydrogen release. Our research reveals correlations among the d-band center, work function, and surface energy of 3d and 4d transition metals. These correlations are directly linked to the weakening of bonding within the BH4 cluster when adsorbed on catalyst surfaces. On the other hand, we also explore how various intrinsic properties of transition metals influence the formation of boron vacancies and the hydrogen bonding process. By establishing a comprehensive correlation between the weakening of sp3 hybridization in the BH4 cluster and the sp2 hybridization in boron, we facilitate the identification and screening of optimal candidates capable of achieving reversible de-hydrogenation and re-hydrogenation in borohydrides.
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Affiliation(s)
- Yifan Jing
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China
| | - Shengming Zhou
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China
| | - Jiaxi Liu
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China; School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China
| | - Huicheng Yang
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China
| | - Jiaqi Liang
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China
| | - Leyu Peng
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China
| | - Ziyuan Li
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China
| | - Yongpeng Xia
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China
| | - Huangzhi Zhang
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China
| | - Fen Xu
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China
| | - Lixian Sun
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China; School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China.
| | - Kostya S Novoselov
- Institute for Functional Intelligent Materials, National University of Singapore, 117544, Singapore.
| | - Pengru Huang
- School of Material Science and Engineering, Guilin University of Electronic Technology, Guangxi Key Laboratory of Information Materials, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guilin 541004, China; Institute for Functional Intelligent Materials, National University of Singapore, 117544, Singapore.
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10
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Muhammad I, Saddique J, Wu C, Rahman MU, Khan ZU, Ali W, Zhang R. Nitrogen-Doped Graphene-Supported Nickel Nanoparticles Reveal Low Dehydrogenation Temperature and Long Cyclic Life of Magnesium Hydrides. ACS OMEGA 2024; 9:19261-19271. [PMID: 38708274 PMCID: PMC11064194 DOI: 10.1021/acsomega.4c00198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/19/2024] [Accepted: 03/29/2024] [Indexed: 05/07/2024]
Abstract
Magnesium hydride (MgH2) is a promising hydrogen storage candidate due to its large capacity; however, high dehydrogenation temperature and slow kinetic rates are the main bottlenecks. Herein, we proposed a strategy for designing nitrogen-doped graphene-supported Ni nanoparticles (NPs) (Ni@NC) to tackle these problems. The results showed that the MgH2 + 15 wt % Ni@NC nanocomposite reduced the on-set dehydrogenation temperature to 195 °C, which was 175 °C lower than pristine MgH2. In addition, MgH2 + 15 wt % Ni@NC achieved 1.7 and 6.5 wt % desorption capacities at 225 and 300 °C, respectively, while absorbing 5.5 wt % hydrogen at 100 °C. The MgH2 + 15 wt % Ni@NC nanocomposite showed high cyclic stability, achieving 98.0% capacity retention after 100 cycles at 270 °C with negligible loss in capacity. This remarkable hydrogen storage performance can be attributed to the homogeneous distribution of Ni NPs on N-doped graphene layers, in situ formed Mg2NiH2 NPs, and multiphasic regions, promoting the nucleation and growth process during hydrogenation/dehydrogenation, which stabilized and improved the cyclic stability. This strategy paves the way to developing high-performance MgH2 for large-scale applications.
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Affiliation(s)
- Imran Muhammad
- School
of Materials Science and Engineering, Changzhou
University, Changzhou 213164, P. R. China
| | - Jaffer Saddique
- Key
Laboratory of Advanced Catalytic Materials (Ministry of Education),
School of Materials Science and Chemistry, Zhejiang Normal University, Zhejiang Jinhua 321004, P. R. China
| | - Chengzhang Wu
- State
Key Laboratory of Advanced Special Steel, Key Laboratory of Advanced
Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
| | - Muneeb ur Rahman
- Department
of Physics, Islamia College Peshawar, Khyber Pakhtunkhwa 25120, Pakistan
| | - Zaheen Ullah Khan
- Institute
of Materials for Energy and Environment, School of Materials Science
and Engineering, Qingdao University, Qingdao 266071, China
| | - Wajid Ali
- Key
Laboratory of Advanced Catalytic Materials (Ministry of Education),
School of Materials Science and Chemistry, Zhejiang Normal University, Zhejiang Jinhua 321004, P. R. China
| | - Rong Zhang
- School
of Materials Science and Engineering, Changzhou
University, Changzhou 213164, P. R. China
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11
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Yang C, Yue J, Wang G, Luo W. Activating and Identifying the Active Site of RuS 2 for Alkaline Hydrogen Oxidation Electrocatalysis. Angew Chem Int Ed Engl 2024; 63:e202401453. [PMID: 38366202 DOI: 10.1002/anie.202401453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/18/2024]
Abstract
Searching for highly efficient and economical electrocatalysts for alkaline hydrogen oxidation reaction (HOR) is crucial for the development of alkaline polymer membrane fuel cells. Here, we report a valid strategy to active pyrite-type RuS2 for alkaline HOR electrocatalysis by introducing sulfur vacancies. The obtained S-vacancies modified RuS2-x exhibits outperformed HOR activity with a current density of 0.676 mA cm-2 and mass activity of 1.43 mA μg-1, which are 15-fold and 40-fold improvement than those of Ru catalyst. In situ Raman spectra demonstrate the formation of S-H bond during the HOR process, identifying the S atom of RuS2-x is the real active site for HOR catalysis. Density functional theory calculations and experimental results including in situ surface-enhanced infrared absorption spectroscopy suggest the introduction of S vacancies can rationally modify the p orbital of S atoms, leading to enhanced binding strength between the S sites and H atoms on the surface of RuS2-x, together with the promoted connectivity of hydrogen-bonding network and lowered water formation energy, contributes to the enhanced HOR performance.
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Affiliation(s)
- Chaoyi Yang
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
| | - Jianchao Yue
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
| | - Guangqin Wang
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
| | - Wei Luo
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
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12
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Zhu W, Ma X, Wang Y, Wang C, Li W. First-principles study of the mechanical and thermodynamic properties of aluminium-doped magnesium alloys. RSC Adv 2024; 14:11877-11884. [PMID: 38623297 PMCID: PMC11017191 DOI: 10.1039/d4ra00470a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/27/2024] [Indexed: 04/17/2024] Open
Abstract
Magnesium-aluminum (Mg-Al) alloys are widely used in aerospace, automobile and medical equipment owing to their advantages of easy casting, high strength-to-mass ratio and good biocompatibility. The structural, mechanical, electronic and thermodynamic properties of MgxAly alloys (x + y = 16, x = 1, 2,…, 15) with varying Al-doping contents were studied using the first-principles method. In this work, the structures of MgxAly alloys were constructed by replacing Mg atoms in a supercell with Al atoms. The lattice parameters of the Al-doped MgxAly alloys decrease with an increasing Al content because of the smaller atomic size of Al than that of Mg. The calculated formation energies show that Mg11Al5, Mg5Al3 and Mg9Al7 have prominent structural stability. The analyses of the mechanical properties reveal that the doping of Al improves the ductility of MgxAly alloys. The elastic moduli increase with an increasing Al content, and Mg9Al7 has a notable ability to resist deformation, while Mg11Al5 and Mg5Al3 have better plasticity. The calculated results of their electronic properties reveal that Mg11Al5, Mg5Al3 and Mg9Al7 are good conductors without magnetism. Furthermore, CDD analyses show that the inner layer charges of Al atoms migrated to the outer layer, and the charges of Mg atoms accumulated significantly in the outer region of Al atoms. The Debye temperature of Mg9Al7 is higher than that of Mg11Al5 and Mg5Al3, indicating that it has better thermodynamic stability. Our findings would be helpful for the design of Mg-Al alloys with excellent mechanical and thermodynamic performances.
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Affiliation(s)
- Wenjie Zhu
- School of Mathematics and Physics, Henan University of Urban Construction Pingdingshan 467041 China
| | - Xingtao Ma
- School of Mathematics and Physics, Henan University of Urban Construction Pingdingshan 467041 China
| | - Yarui Wang
- School of Mathematics and Physics, Henan University of Urban Construction Pingdingshan 467041 China
| | - Chaoyong Wang
- School of Mathematics and Physics, Henan University of Urban Construction Pingdingshan 467041 China
| | - Wei Li
- School of Mathematics and Physics, Henan University of Urban Construction Pingdingshan 467041 China
- Henan Engineering Research Centre of Building-Photovoltaics Pingdingshan 467036 China
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13
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Wan C, Li R, Wang J, Cheng DG, Chen F, Xu L, Gao M, Kang Y, Eguchi M, Yamauchi Y. Silica Confinement for Stable and Magnetic Co-Cu Alloy Nanoparticles in Nitrogen-Doped Carbon for Enhanced Hydrogen Evolution. Angew Chem Int Ed Engl 2024:e202404505. [PMID: 38598471 DOI: 10.1002/anie.202404505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/02/2024] [Accepted: 04/10/2024] [Indexed: 04/12/2024]
Abstract
Ammonia borane (AB) with 19.6 wt % H2 content is widely considered a safe and efficient medium for H2 storage and release. Co-based nanocatalysts present strong contenders for replacing precious metal-based catalysts in AB hydrolysis due to their high activity and cost-effectiveness. However, precisely adjusting the active centers and surface properties of Co-based nanomaterials to enhance their activity, as well as suppressing the migration and loss of metal atoms to improve their stability, presents many challenges. In this study, mesoporous-silica-confined bimetallic Co-Cu nanoparticles embedded in nitrogen-doped carbon (CoxCu1-x@NC@mSiO2) were synthesized using a facile mSiO2-confined thermal pyrolysis strategy. The obtained product, an optimized Co0.8Cu0.2@NC@mSiO2 catalyst, exhibits enhanced performance with a turnover frequency of 240.9 molH2 ⋅ molmetal ⋅ min-1 for AB hydrolysis at 298 K, surpassing most noble-metal-free catalysts. Moreover, Co0.8Cu0.2@NC@mSiO2 demonstrates magnetic recyclability and extraordinary stability, with a negligible decline of only 0.8 % over 30 cycles of use. This enhanced performance was attributed to the synergistic effect between Co and Cu, as well as silica confinement. This work proposes a promising method for constructing noble-metal-free catalysts for AB hydrolysis.
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Affiliation(s)
- Chao Wan
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, 243002, China
- College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
- Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Rong Li
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, 243002, China
| | - Jiapei Wang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, 243002, China
| | - Dang-Guo Cheng
- College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Fengqiu Chen
- College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Lixin Xu
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, 243002, China
| | - Mingbin Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yunqing Kang
- Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Nanozyme Laboratory in Zhongyuan, Henan Academy of Innovations in Medical Science Zhengzhou, Henan, 451163, China
| | - Miharu Eguchi
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo, 169-8555, Japan
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland, 4072, Australia
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, South Korea
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14
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Matsuda J. In situ TEM studies on hydrogen-related issues: hydrogen storage, hydrogen embrittlement, fuel cells and electrolysis. Microscopy (Oxf) 2024; 73:196-207. [PMID: 38102762 DOI: 10.1093/jmicro/dfad060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/19/2023] [Accepted: 12/12/2023] [Indexed: 12/17/2023] Open
Abstract
Hydrogen is attracting attention as an energy carrier for realizing a low-carbon society, because it can directly convert the energy obtained from chemical reactions into electrical energy without carbon dioxide emissions. This paper presents in situ transmission electron microscopy (TEM) observations related to hydrogen storage in metal and metal hydrides, hydrogen embrittlement of metallic materials used for storing and transporting hydrogen in containers and pipes, and fuel cells and water electrolysis using metal catalysts and oxides as electrode materials. All of these processes are important for practical applications of hydrogen. Numerous in situ TEM studies have revealed the microscopic structural changes when hydrogen reacts with the materials, when hydrogen is solidly dissolved in the materials and during the operation of the material. This review is expected to facilitate further development of TEM operando observations of hydrogen-related materials.
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Affiliation(s)
- Junko Matsuda
- International Research Center for Hydrogen Energy, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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15
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Duhan N, Dhilip Kumar TJ. Lithium-grafted Si-doped γ-graphyne as a reversible hydrogen storage host material. Phys Chem Chem Phys 2024; 26:11140-11149. [PMID: 38530754 DOI: 10.1039/d3cp05294j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
In recent years, hydrogen (H2) has become the most sought-after sustainable energy carrier by virtue of its high energy content and carbon-free emission. The practical implementation of hydrogen as an alternative fuel calls for an efficient and secure storage medium. Within this framework, we have investigated Li-grafted Si-doped γ-graphyne for H2 storage applications by implementing the cutting-edge density functional theory (DFT). A dynamically and thermally stable Si-doped γ-graphyne (SiG) monolayer is functionalized with Li metal atoms that augmented the hydrogen binding strength of the nanolayer by almost three times, owing to the polarization effect of the Li atoms. The Li metal atoms get adsorbed over the monolayer, allowing a binding energy of -2.73 eV that is greater than the Li cohesive energy (-1.63 eV), which eliminates the metal-metal clustering probability. The reliability of the Li-functionalized SiG monolayer (Li8SiG) at elevated temperature has been further substantiated by performing and analyzing ab initio molecular dynamics (AIMD) simulations at 400 K. It is noteworthy that a total of four H2 molecules are held up by each Li atom with an average adsorption energy of -0.32 eV and a maximum gravimetric capacity of 8.48 wt%, which remarkably follows the US-DOE parameters. Partial density of states and Hirshfeld charge analysis are utilized to recognize the interaction channel which reveals the Kubas and Niu-Rao-Jena-like bonding among the metal atoms and loaded hydrogen molecules. The hydrogen occupancy calculated at different temperatures and pressures indicates that hydrogen molecules can be reversibly stored over the Li8SiG system, and it is noted that adsorbed H2 begins to desorb at 280 K, with complete desorption at 400 K and 20 atm (or lower). AIMD simulations are further performed to authenticate the H2 desorption at various temperatures, which agrees well with the occupation number analysis. All the outcomes advocate for efficient reversible hydrogen storage over the proposed host material.
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Affiliation(s)
- Nidhi Duhan
- Quantum Dynamics Lab, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar 140001, India.
| | - T J Dhilip Kumar
- Quantum Dynamics Lab, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar 140001, India.
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Li K, Xia T, Deng R, Dou Y, Wang J, Li Q, Sun L, Huo L, Zhao H. Tuning A-Site Cation Deficiency in Pr 0.5La 0.5BaCo 2O 5+ δ Perovskite to Realize Large-Scale Hydrogen Evolution at 2000 mA cm -2. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400760. [PMID: 38566543 DOI: 10.1002/smll.202400760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/22/2024] [Indexed: 04/04/2024]
Abstract
Industrial-level hydrogen production from the water electrolysis requires reducing the overpotential (η) as much as possible at high current density, which is closely related to intrinsic activity of the electrocatalysts. Herein, A-site cation deficiency engineering is proposed to screen high-performance catalysts, demonstrating effective Pr0.5- xLa0.5BaCo2O5+ δ (P0.5- xLBC) perovskites toward alkaline hydrogen evolution reaction (HER). Among all perovskite compositions, Pr0.4La0.5BaCo2O5+ δ (P0.4LBC) exhibits superior HER performance along with unique operating stability at large current densities (J = 500-2000 mA cm-2 geo). The overpotential of ≈636 mV is achieved in P0.4LBC at 2000 mA cm-2 geo, which outperforms commercial Pt/C benchmark (≈974 mV). Furthermore, the Tafel slope of P0.4LBC (34.1 mV dec-1) is close to that of Pt/C (35.6 mV dec-1), reflecting fast HER kinetics on the P0.4LBC catalyst. Combined with experimental and theoretical results, such catalytic activity may benefit from enhanced electrical conductivity, enlarged Co-O covalency, and decreased desorption energy of H* species. This results highlight effective A-site cation-deficient strategy for promoting electrochemical properties of perovskites, highlighting potential water electrolysis at ampere-level current density.
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Affiliation(s)
- Kaiqian Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry, Chemical Engineering and Materials, Heilongjiang University, Harbin, 150080, P. R. China
| | - Tian Xia
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry, Chemical Engineering and Materials, Heilongjiang University, Harbin, 150080, P. R. China
| | - Ruiping Deng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yingnan Dou
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry, Chemical Engineering and Materials, Heilongjiang University, Harbin, 150080, P. R. China
| | - Jingping Wang
- Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Qiang Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry, Chemical Engineering and Materials, Heilongjiang University, Harbin, 150080, P. R. China
| | - Liping Sun
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry, Chemical Engineering and Materials, Heilongjiang University, Harbin, 150080, P. R. China
| | - Lihua Huo
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry, Chemical Engineering and Materials, Heilongjiang University, Harbin, 150080, P. R. China
| | - Hui Zhao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry, Chemical Engineering and Materials, Heilongjiang University, Harbin, 150080, P. R. China
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17
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Zhang X, Ju S, Li C, Hao J, Sun Y, Hu X, Chen W, Chen J, He L, Xia G, Fang F, Sun D, Yu X. Atomic reconstruction for realizing stable solar-driven reversible hydrogen storage of magnesium hydride. Nat Commun 2024; 15:2815. [PMID: 38561357 PMCID: PMC10984991 DOI: 10.1038/s41467-024-47077-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 03/14/2024] [Indexed: 04/04/2024] Open
Abstract
Reversible solid-state hydrogen storage of magnesium hydride, traditionally driven by external heating, is constrained by massive energy input and low systematic energy density. Herein, a single phase of Mg2Ni(Cu) alloy is designed via atomic reconstruction to achieve the ideal integration of photothermal and catalytic effects for stable solar-driven hydrogen storage of MgH2. With the intra/inter-band transitions of Mg2Ni(Cu) and its hydrogenated state, over 85% absorption in the entire spectrum is achieved, resulting in the temperature up to 261.8 °C under 2.6 W cm-2. Moreover, the hydrogen storage reaction of Mg2Ni(Cu) is thermodynamically and kinetically favored, and the imbalanced distribution of the light-induced hot electrons within CuNi and Mg2Ni(Cu) facilitates the weakening of Mg-H bonds of MgH2, enhancing the "hydrogen pump" effect of Mg2Ni(Cu)/Mg2Ni(Cu)H4. The reversible generation of Mg2Ni(Cu) upon repeated dehydrogenation process enables the continuous integration of photothermal and catalytic roles stably, ensuring the direct action of localized heat on the catalytic sites without any heat loss, thereby achieving a 6.1 wt.% H2 reversible capacity with 95% retention under 3.5 W cm-2.
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Affiliation(s)
- Xiaoyue Zhang
- Department of Materials Science, Fudan University, Shanghai, China
| | - Shunlong Ju
- Department of Materials Science, Fudan University, Shanghai, China
| | - Chaoqun Li
- Department of Materials Science, Fudan University, Shanghai, China
| | - Jiazheng Hao
- Spallation Neutron Source Science Center, Dongguan, China
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
| | - Yahui Sun
- Department of Materials Science, Fudan University, Shanghai, China
| | - Xuechun Hu
- Department of Materials Science, Fudan University, Shanghai, China
| | - Wei Chen
- Department of Materials Science, Fudan University, Shanghai, China
| | - Jie Chen
- Spallation Neutron Source Science Center, Dongguan, China
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
| | - Lunhua He
- Spallation Neutron Source Science Center, Dongguan, China
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, PR China
- Songshan Lake Materials Laboratory, Dongguan, PR China
| | - Guanglin Xia
- Department of Materials Science, Fudan University, Shanghai, China.
| | - Fang Fang
- Department of Materials Science, Fudan University, Shanghai, China.
| | - Dalin Sun
- Department of Materials Science, Fudan University, Shanghai, China
| | - Xuebin Yu
- Department of Materials Science, Fudan University, Shanghai, China.
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18
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Kim G, Lee S, Lee SK, Yu HJ, Cho H, Chung Y, Park TE, Lee HS, Shim W, Lee KH, Park JY, Kim YJ, Chun DW, Lee W. Revealing the Substrate Constraint Effect on the Thermodynamic Behaviour of the Pd-H through Capacitive-Based Hydrogen-Sorption Measurement. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310333. [PMID: 38181178 DOI: 10.1002/adma.202310333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/26/2023] [Indexed: 01/07/2024]
Abstract
Mechanical constraints imposed on the Pd-H system can induce significant strain upon hydrogenation-induced expansion, potentially leading to changes in the thermodynamic behavior, such as the phase-transition pressure. However, the investigation of the constraint effect is often tricky due to the lack of simple experimental techniques for measuring hydrogenation-induced expansion. In this study, a capacitive-based measurement system is developed to monitor hydrogenation-induced areal expansion, which allows us to control and evaluate the magnitude of the substrate constraint. By using the measurement technique, the influence of substrate constraint intensity on the thermodynamic behavior of the Pd-H system is investigated. Through experiments with different constraint intensities, it is found that the diffefrence in the constraint intensity minimally affects the phase-transition pressure when the Pd-H system allows the release of constraint stress through plastic deformation. These experiments can improve the understanding of the substrate constraint behaviours of Pd-H systems allowing plastic deformation while demonstrating the potential of capacitive-based measurement systems to study the mechanical-thermodynamic coupling of M-H systems.
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Affiliation(s)
- Gwangmook Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
- KIURI Institute, Yonsei University, Seoul, 03722, Republic of Korea
| | - Soomin Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Sang-Kil Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Han Jun Yu
- Center for Energy Materials Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Hunyoung Cho
- Center for Energy Materials Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Youngjun Chung
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Tae-Eon Park
- Center for Spintronics, Korea Institute of Science and Technology (KIST), Seoul, 02792, South Korea
| | - Hyun-Sook Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Wooyoung Shim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Kyu Hyoung Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Jeong Young Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Yu Jin Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
- KIURI Institute, Yonsei University, Seoul, 03722, Republic of Korea
| | - Dong Won Chun
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
- Center for Energy Materials Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Yonsei-KIST Convergence Research Institute, Yonsei University, Seoul, 03722, Republic of Korea
| | - Wooyoung Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
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Hu X, Chen X, Zhang X, Meng Y, Xia G, Yu X, Sun D, Fang F. In Situ Construction of Interface with Photothermal and Mutual Catalytic Effect for Efficient Solar-Driven Reversible Hydrogen Storage of MgH 2. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2400274. [PMID: 38520071 DOI: 10.1002/advs.202400274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/26/2024] [Indexed: 03/25/2024]
Abstract
Hydrogen storage in MgH2 is an ideal solution for realizing the safe storage of hydrogen. High operating temperature, however, is required for hydrogen storage of MgH2 induced by high thermodynamic stability and kinetic barrier. Herein, flower-like microspheres uniformly constructed by N-doped TiO2 nanosheets coated with TiN nanoparticles are fabricated to integrate the light absorber and thermo-chemical catalysts at a nanometer scale for driving hydrogen storage of MgH2 using solar energy. N-doped TiO2 is in situ transformed into TiNxOy and Ti/TiH2 uniformly distributed inside of TiN matrix during cycling, in which TiN and Ti/TiHx pairs serve as light absorbers that exhibit strong localized surface plasmon resonance effect with full-spectrum light absorbance capability. On the other hand, it is theoretically and experimentally demonstrated that the intimate interface between TiH2 and MgH2 can not only thermodynamically and kinetically promote H2 desorption from MgH2 but also simultaneously weaken Ti─H bonds and hence in turn improve H2 desorption from the combination of weakened Ti─H and Ti─H bonds. The uniform integration of photothermal and catalytic effect leads to the direct action of localized heat generated from TiN on initiating the catalytic effect in realizing hydrogen storage of MgH2 with a capacity of 6.1 wt.% under 27 sun.
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Affiliation(s)
- Xuechun Hu
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xiaowei Chen
- Department of Physics, Jimei University, Xiamen, 361021, P. R. China
| | - Xiaoyue Zhang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Yang Meng
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Guanglin Xia
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xuebin Yu
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Dalin Sun
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Fang Fang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
- Yiwu Research Institute of Fudan University, Yiwu, Zhejiang, 322000, P. R. China
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20
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Park J, Cho I, Jeon H, Lee Y, Zhang J, Lee D, Cho MK, Preston DJ, Shong B, Kim IS, Lee WK. Conversion of Layered WS 2 Crystals into Mixed-Domain Electrochemical Catalysts by Plasma-Assisted Surface Reconstruction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2314031. [PMID: 38509794 DOI: 10.1002/adma.202314031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/11/2024] [Indexed: 03/22/2024]
Abstract
Electrocatalytic water splitting is crucial to generate clean hydrogen fuel, but implementation at an industrial scale remains limited due to dependence on expensive platinum (Pt)-based electrocatalysts. Here, an all-dry process to transform electrochemically inert bulk WS2 into a multidomain electrochemical catalyst that enables scalable and cost-effective implementation of the hydrogen evolution reaction (HER) in water electrolysis is reported. Direct dry transfer of WS2 flakes to a gold thin film deposited on a silicon substrate provides a general platform to produce the working electrodes for HER with tunable charge transfer resistance. By treating the mechanically exfoliated WS2 with sequential Ar-O2 plasma, mixed domains of WS2, WO3, and tungsten oxysulfide form on the surfaces of the flakes, which gives rise to a superior HER with much greater long-term stability and steady-state activity compared to Pt. Using density functional theory, ultraefficient atomic sites formed on the constituent nanodomains are identified, and the quantification of atomic-scale reactivities and resulting HER activities fully support the experimental observations.
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Affiliation(s)
- Jiheon Park
- Department of Materials Science and Engineering, Hongik University, Seoul, 04066, Republic of Korea
| | - Iaan Cho
- Department of Chemical Engineering, Hongik University, Seoul, 04066, Republic of Korea
| | - Hotae Jeon
- Department of Materials Science and Engineering, Hongik University, Seoul, 04066, Republic of Korea
| | - Youjin Lee
- Department of Materials Science and Engineering, Hongik University, Seoul, 04066, Republic of Korea
| | - Jian Zhang
- International Research Center for EM Metamaterials and Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Dongwook Lee
- Department of Materials Science and Engineering, Hongik University, Seoul, 04066, Republic of Korea
| | - Min Kyung Cho
- Advanced Analysis and Data Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Daniel J Preston
- Department of Mechanical Engineering, Rice University, Houston, TX, 77005, USA
| | - Bonggeun Shong
- Department of Chemical Engineering, Hongik University, Seoul, 04066, Republic of Korea
| | - In Soo Kim
- Nanophotonics Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- KIST-SKKU Carbon-Neutral Research Center, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Won-Kyu Lee
- Department of Materials Science and Engineering, Hongik University, Seoul, 04066, Republic of Korea
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21
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Baghai B, Ketabi S. Hydrogen storage efficiency of Fe doped carbon nanotubes: molecular simulation study. RSC Adv 2024; 14:9763-9780. [PMID: 38525065 PMCID: PMC10959165 DOI: 10.1039/d3ra08382a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/18/2024] [Indexed: 03/26/2024] Open
Abstract
Given that adsorption is widely regarded as a favorable technique for hydrogen storage, it is appropriate to pursue the development of suitable adsorbent materials for industrial storage. This study aimed to assess the potential of Fe-doped carbon nanotubes (FeCNT) as a remarkable material for hydrogen storage. The structures of pure and Fe-doped CNTs were optimized based on quantum mechanical calculations using density functional theory (DFT) with the Perdew-Burke-Ernzerhof (PBE) method. To gain a comprehensive understanding of the adsorption behavior, Monte Carlo simulation was employed to investigate the adsorption of hydrogen molecules on FeCNT. The study specifically examined the impact of temperature, pressure, and hydrogen mole percentage on the adsorption capacity of FeCNT. The findings indicated that the uptake of hydrogen increased as the pressure increased, and when the pressure exceeded 5 MPa, FeCNT reached a state of near saturation. At room temperature and pressures of 1 and 5 MPa, the hydrogen capacities of FeCNT were determined to be 1.53 and 6.92 wt%, respectively. The radial distribution function diagrams confirmed the formation of a one-layer adsorption phase at pressures below 5 MPa. A comparison of the temperature dependence of hydrogen adsorption between FeCNT and pure CNT confirmed the effectiveness of Fe doping in hydrogen storage up to room temperature. FeCNT exhibited a greater reduction in initial hydrogen capacity at temperatures above room temperature. To evaluate the safety of the system, the use of N2 as a dilution agent was investigated by examining the hydrogen uptake of FeCNT from pure and H2/N2 mixtures at 300 K. The results showed that the addition of N2 to the environment had no significant effect on FeCNT hydrogen storage at pressures below 4 MPa. Furthermore, the study of H2 selectivity from the H2/N2 mixture indicated that FeCNT demonstrated a preference for adsorbing H2 over a wide range of bulk mole fractions at pressures of 4 and 5 MPa, suggesting that these pressures could be considered optimal. Under these conditions, Fe doping can offer an efficient and selective adsorption surface for hydrogen storage.
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Affiliation(s)
- Bita Baghai
- Department of Applied Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University Tehran Iran
| | - Sepideh Ketabi
- Department of Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University Tehran Iran
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22
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Zhang W, Zhou L, Zhang X, Huang Z, Fang F, Hong Z, Li J, Gao M, Sun W, Pan H, Liu Y. Lithium Borohydride Nanorods: Self-Assembling Growth and Remarkable Hydrogen Cycling Properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400965. [PMID: 38506595 DOI: 10.1002/smll.202400965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Indexed: 03/21/2024]
Abstract
Nanostructured metal hydrides with unique morphology and improved hydrogen storage properties have attracted intense interests. However, the study of the growth process of highly active borohydrides remains challenging. Herein, for the first time the synthesis of LiBH4 nanorods through a hydrogen-assisted one-pot solvothermal reaction is reported. Reaction of n-butyl lithium with triethylamine borane in n-hexane under 50 bar of H2 at 40-100 °C gives rise to the formation of the [100]-oriented LiBH4 nanorods with 500-800 nm in diameter, whose growth is driven by orientated attachment and ligand adsorption. The unique morphology enables the LiBH4 nanorods to release hydrogen from ≈184 °C, 94 °C lower than the commercial sample (≈278 °C). Hydrogen release amounts to 13 wt% within 40 min at 450 °C with a stable cyclability, remarkably superior to the commercial LiBH4 (≈9.1 wt%). More importantly, up to 180 °C reduction in the onset temperature of hydrogenation is successfully attained by the nanorod sample with respect to the commercial counterpart. The LiBH4 nanorods show no foaming during dehydrogenation, which improves the hydrogen cycling performance. The new approach will shed light on the preparation of nanostructured metal borohydrides as advanced functional materials.
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Affiliation(s)
- Wenxuan Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Linming Zhou
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xin Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Taizhou Institute of Zhejiang University, Taizhou, 318000, China
| | - Zhenguo Huang
- School of Civil & Environmental Engineering, University of Technology Sydney, 81 Broadway, Ultimo, NSW, 2007, Australia
| | - Fang Fang
- School of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, China
| | - Zijian Hong
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Taizhou Institute of Zhejiang University, Taizhou, 318000, China
| | - Juan Li
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Mingxia Gao
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Wenping Sun
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hongge Pan
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, China
| | - Yongfeng Liu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Taizhou Institute of Zhejiang University, Taizhou, 318000, China
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, China
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23
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Fusek L, Briega-Martos V, Minichová M, Fromm L, Franz E, Yang J, Görling A, Mayrhofer KJJ, Wasserscheid P, Cherevko S, Brummel O, Libuda J. Toward High-Energy-Density Fuels for Direct Liquid Organic Hydrogen Carrier Fuel Cells: Electrooxidation of 1-Cyclohexylethanol. J Phys Chem Lett 2024; 15:2529-2536. [PMID: 38412511 DOI: 10.1021/acs.jpclett.3c03331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Electrochemically active liquid organic hydrogen carriers (EC-LOHCs) can be used directly in fuel cells; so far, however, they have rather low hydrogen storage capacities. In this work, we study the electrooxidation of a potential EC-LOHC with increased energy density, 1-cyclohexylethanol, which consists of two storage functionalities (a secondary alcohol and a cyclohexyl group). We investigated the product spectrum on low-index Pt single-crystal surfaces in an acidic environment by combining cyclic voltammetry, chronoamperometry, and in situ infrared spectroscopy, supported by density functional theory. We show that the electrooxidation of 1-cyclohexylethanol is a highly structure-sensitive reaction with activities Pt(111) ≫ Pt(100) > Pt(110). Most importantly, we demonstrate that 1-cyclohexylethanol can be directly converted to acetophenone, which desorbs from the electrode surface. However, decomposition products are formed, which lead to poisoning. If the latter side reactions could be suppressed, the electrooxidation of 1-cyclohexylethanol would enable the development of EC-LOHCs with greatly increased hydrogen storage capacities.
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Affiliation(s)
- Lukáš Fusek
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
- Faculty of Mathematics and Physics, Department of Surface and Plasma Science, Charles University, V Holešovičkách 2, 18000 Prague, Czech Republic
| | - Valentín Briega-Martos
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Erlangen 91058, Germany
| | - Maria Minichová
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Erlangen 91058, Germany
- Institute of Chemical Reaction Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058 Erlangen, Germany
| | - Lukas Fromm
- Lehrstuhl für Theoretische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Evanie Franz
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Juntao Yang
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Andreas Görling
- Lehrstuhl für Theoretische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Karl J J Mayrhofer
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Erlangen 91058, Germany
- Institute of Chemical Reaction Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058 Erlangen, Germany
| | - Peter Wasserscheid
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Erlangen 91058, Germany
- Institute of Chemical Reaction Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058 Erlangen, Germany
| | - Serhiy Cherevko
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Erlangen 91058, Germany
| | - Olaf Brummel
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Jörg Libuda
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
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24
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Głowniak S, Szczęśniak B, Choma J, Jaroniec M. Greener Approach Towards Synthesis of Palladium-Decorated Graphene Derivatives for Hydrogen Adsorption. Chemphyschem 2024; 25:e202300553. [PMID: 38227379 DOI: 10.1002/cphc.202300553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
A simple, green, and relatively fast procedure was used to prepare palladium decorated graphene-based materials. A parent graphene-like material with a high specific surface area of up to 384 m2 /g and a total pore volume of 0.42 cm3 /g was prepared via a fast, solvent-free ball milling of graphite powder only. Post-synthetic modification of this graphene-like material was performed via a simplified method using palladium chloride and a small amount of a non-harsh reducing agent - formic acid. Palladium decoration (2.1 wt%) allowed obtaining a few times higher hydrogen adsorption (0.42 wt% at 30 °C and 40 bar) compared to that on bare graphene-based materials. Palladium-decorated graphene materials are promising for hydrogen storage and their usage in this application represents an alternative for conventional fossil fuels. The proposed synthesis and post-modification strategies are in line with green synthesis strategies.
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Affiliation(s)
- Sylwia Głowniak
- Institute of Chemistry, Military University of Technology, 00-908, Warsaw, Poland
| | - Barbara Szczęśniak
- Institute of Chemistry, Military University of Technology, 00-908, Warsaw, Poland
| | - Jerzy Choma
- Institute of Chemistry, Military University of Technology, 00-908, Warsaw, Poland
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry & Advanced Materials and Liquid Crystal Institute, Kent State University, Kent, Ohio, 44242, USA
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25
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Khan MSJ, Mohd Sidek L, Kamal T, Khan SB, Basri H, Zawawi MH, Ahmed AN. Catalytic innovations: Improving wastewater treatment and hydrogen generation technologies. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 354:120228. [PMID: 38377746 DOI: 10.1016/j.jenvman.2024.120228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/19/2024] [Accepted: 01/24/2024] [Indexed: 02/22/2024]
Abstract
The effective reduction of hazardous organic pollutants in wastewater is a pressing global concern, necessitating the development of advanced treatment technologies. Pollutants such as nitrophenols and dyes, which pose significant risks to both human and aquatic health, making their reduction particularly crucial. Despite the existence of various methods to eliminate these pollutants, they are not without limitations. The utilization of nanomaterials as catalysts for chemical reduction exhibits a promising alternative owing to their distinguished catalytic activity and substantial surface area. For catalytically reducing the pollutants NaBH4 has been utilized as a useful source for it because it reduces the pollutants quiet efficiently and it also releases hydrogen gas as well which can be used as a source of energy. This paper provides a comprehensive review of recent research on different types of nanomaterials that function as catalysts to reduce organic pollutants and also generating hydrogen from NaBH4 methanolysis while also evaluating the positive and negative aspects of nanocatalyst. Additionally, this paper examines the features effecting the process and the mechanism of catalysis. The comparison of different catalysts is based on size of catalyst, reaction time, rate of reaction, hydrogen generation rate, activation energy, and durability. The information obtained from this paper can be used to steer the development of new catalysts for reducing organic pollutants and generation hydrogen by NaBH4 methanolysis.
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Affiliation(s)
| | - Lariyah Mohd Sidek
- Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia; Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia
| | - Tahseen Kamal
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Sher Bahadar Khan
- Department of Chemistry, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Hidayah Basri
- Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia; Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia
| | - Mohd Hafiz Zawawi
- Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia; Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia
| | - Ali Najah Ahmed
- Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia; School of Engineering and Technology, Sunway University, Bandar Sunway, Petaling Jaya, 47500, Malaysia.
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26
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Gu J, Li L, Yang Q, Tian F, Zhao W, Xie Y, Yu J, Zhang A, Zhang L, Li H, Zhong J, Jiang J, Wang Y, Liu J, Lu J. Twinning Engineering of Platinum/Iridium Nanonets as Turing-Type Catalysts for Efficient Water Splitting. J Am Chem Soc 2024; 146:5355-5365. [PMID: 38358943 DOI: 10.1021/jacs.3c12419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
The twin boundary, a common lattice plane of mirror-symmetric crystals, may have high reactivity due to special atomic coordination. However, twinning platinum and iridium nanocatalysts are grand challenges due to the high stacking fault energies that are nearly 1 order of magnitude larger than those of easy-twinning gold and silver. Here, we demonstrate that Turing structuring, realized by selective etching of superthin metal film, provides 14.3 and 18.9 times increases in twin-boundary densities for platinum and iridium nanonets, comparable to the highly twinned silver nanocatalysts. The Turing configurations with abundant low-coordination atoms contribute to the formation of nanotwins and create a large active surface area. Theoretical calculations reveal that the specific atom arrangement on the twin boundary changes the electronic structure and reduces the energy barrier of water dissociation. The optimal Turing-type platinum nanonets demonstrated excellent hydrogen-evolution-reaction performance with a 25.6 mV overpotential at 10.0 mA·cm-2 and a 14.8-fold increase in mass activity. And the bifunctional Turing iridium catalysts integrated in the water electrolyzer had a mass activity 23.0 times that of commercial iridium catalysts. This work opens a new avenue for nanocrystal twinning as a facile paradigm for designing high-performance nanocatalysts.
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Affiliation(s)
- Jialun Gu
- Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong 999077, China
| | - Lanxi Li
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Qi Yang
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Fubo Tian
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Wei Zhao
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Youneng Xie
- Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong 999077, China
| | - Jinli Yu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - An Zhang
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Lei Zhang
- Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong 999077, China
| | - Hongkun Li
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Jing Zhong
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Jiali Jiang
- Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong 999077, China
| | - Yanju Wang
- Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong 999077, China
| | - Jiahua Liu
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Jian Lu
- Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
- CityU-Shenzhen Futian Research Institute, No. 3, Binglang Road, Futian District, Shenzhen 518000, China
- Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen 518000, China
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27
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Zhou MJ, Miao Y, Gu Y, Xie Y. Recent Advances in Reversible Liquid Organic Hydrogen Carrier Systems: From Hydrogen Carriers to Catalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2311355. [PMID: 38374727 DOI: 10.1002/adma.202311355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/31/2024] [Indexed: 02/21/2024]
Abstract
Liquid organic hydrogen carriers (LOHCs) have gained significant attention for large-scale hydrogen storage due to their remarkable gravimetric hydrogen storage capacity (HSC) and compatibility with existing oil and gas transportation networks for long-distance transport. However, the practical application of reversible LOHC systems has been constrained by the intrinsic thermodynamic properties of hydrogen carriers and the performances of associated catalysts in the (de)hydrogenation cycles. To overcome these challenges, thermodynamically favored carriers, high-performance catalysts, and catalytic procedures need to be developed. Here, significant advances in recent years have been summarized, primarily centered on regular LOHC systems catalyzed by homogeneous and heterogeneous catalysts, including dehydrogenative aromatization of cycloalkanes to arenes and N-heterocyclics to N-heteroarenes, as well as reverse hydrogenation processes. Furthermore, with the development of metal complexes for dehydrogenative coupling, a new family of reversible LOHC systems based on alcohols is described that can release H2 under relatively mild conditions. Finally, views on the next steps and challenges in the field of LOHC technology are provided, emphasizing new resources for low-cost hydrogen carriers, high-performance catalysts, catalytic technologies, and application scenarios.
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Affiliation(s)
- Min-Jie Zhou
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yulong Miao
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yanwei Gu
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yinjun Xie
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
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28
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Pantaleone S, Albanese E, Donà L, Corno M, Baricco M, Civalleri B. Theoretical prediction of nanosizing effects and role of additives in the decomposition of Mg(BH 4) 2. RSC Adv 2024; 14:6398-6409. [PMID: 38380234 PMCID: PMC10877581 DOI: 10.1039/d3ra08710g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 02/13/2024] [Indexed: 02/22/2024] Open
Abstract
The energetic transition towards renewable resources is one of the biggest challenges of this century. In this context, the role of H2 is of paramount importance as a key source of energy that could substitute traditional fossil fuels. This technology, even if available in several manufactures, still needs to be optimized at all levels (production, storage and distribution) to be integrated on a larger scale. Among materials suitable to store H2, Mg(BH4)2 is particularly interesting due to its high content of H2 in terms of gravimetric density. Nanosizing effects and role of additives in the decomposition of Mg(BH4)2 were studied by density functional theory (DFT) modelling. Both effects were analyzed because of their contribution in promoting the decomposition of the material. In particular, to have a quantitative idea of nanosizing effects, we used thin film 2D models corresponding to different crystallographic surfaces and referred to the following reaction: Mg(BH4)2 → MgB2 + 4H2. When moving from bulk to nanoscale (2D models), a remarkable decrease in the decomposition energy (10-20 kJ mol-1) was predicted depending on the surface and the thin film thickness considered. As regards the role of additives (Ni and Cu), we based our analysis on their effect in perturbing neighboring borohydride groups. We found a clear elongation of some B-H bonds, in particular with the NiF2 additive (about 0.1 Å). We interpreted this behavior as an indicator of the propensity of borohydride towards dissociation. On the basis of this evidence, we also explored a possible reaction pathway of NiF2 and CuF2 on Mg(BH4)2 up to H2 release and pointed out the major catalytic effect of Ni compared to Cu.
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Affiliation(s)
- Stefano Pantaleone
- Dipartimento di Chimica and NIS Interdepartmental Centre, Università degli Studi di Torino via P. Giuria 7 10125 Torino Italy
| | - Elisa Albanese
- Dipartimento di Chimica and NIS Interdepartmental Centre, Università degli Studi di Torino via P. Giuria 7 10125 Torino Italy
| | - Lorenzo Donà
- Dipartimento di Chimica and NIS Interdepartmental Centre, Università degli Studi di Torino via P. Giuria 7 10125 Torino Italy
| | - Marta Corno
- Dipartimento di Chimica and NIS Interdepartmental Centre, Università degli Studi di Torino via P. Giuria 7 10125 Torino Italy
| | - Marcello Baricco
- Dipartimento di Chimica and NIS Interdepartmental Centre, Università degli Studi di Torino via P. Giuria 7 10125 Torino Italy
| | - Bartolomeo Civalleri
- Dipartimento di Chimica and NIS Interdepartmental Centre, Università degli Studi di Torino via P. Giuria 7 10125 Torino Italy
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29
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Li A, Cao T, Feng L, Hu Y, Zhou Y, Yang P. Recent Advances in Metal-Hydride-Based Disease Treatment. ACS APPLIED MATERIALS & INTERFACES 2024; 16:5355-5367. [PMID: 38265885 DOI: 10.1021/acsami.3c16668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
In comparison to traditional antioxidant treatment methods, the use of hydrogen to eliminate reactive oxygen species from the body has the advantages of high biological safety, strong selectivity, and high clearance rate. As an energy storage material, metal hydrides have been extensively studied and used in transporting hydrogen as clean energy, which can achieve a high hydrogen load and controlled hydrogen release. Considering the antioxidant properties of hydrogen and the delivery ability of metal hydrides, metal-hydride-based disease treatment strategies have attracted widespread attention. Up to now, metal hydrides have been reported for the treatment of tumors and a range of inflammation-related diseases. However, limited by the insufficient investment, the use of metal hydrides in disease treatment still has many shortcomings, such as low targeting efficiency, limited therapeutic activity, and complex material preparation process. Particularly, metal hydrides have been found to have a series of optical, acoustic, and catalytic properties when scaled up to the nanoscale, and these properties are also widely used to promote disease treatment effects. From this new perspective, we comprehensively summarize the very recent research progress on metal-hydride-based disease treatment in this review. Ultimately, the challenges and prospects of such a burgeoning cancer theranostics modality are outlooked to provide inspiration for the further development and clinical translation of metal hydrides.
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Affiliation(s)
- Ao Li
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Tingting Cao
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang 310024, People's Republic of China
- School of Engineering, Westlake University, 600 Dunyu Road, Hangzhou, Zhejiang 310030, People's Republic of China
| | - Lili Feng
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Yaoyu Hu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Yaofeng Zhou
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang 310024, People's Republic of China
- School of Engineering, Westlake University, 600 Dunyu Road, Hangzhou, Zhejiang 310030, People's Republic of China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
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30
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Kawamura S, Yamaguchi A, Miyazaki K, Ito SI, Watanabe N, Hamada I, Kondo T, Miyauchi M. Electrolytic Hydrogen Release from Hydrogen Boride Sheets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310239. [PMID: 38299473 DOI: 10.1002/smll.202310239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/06/2024] [Indexed: 02/02/2024]
Abstract
Solid-state hydrogen storage materials are safe and lightweight hydrogen carriers. Among the various solid-state hydrogen carriers, hydrogen boride (HB) sheets possess a high gravimetric hydrogen capacity (8.5 wt%). However, heating at high temperatures and/or strong ultraviolet illumination is required to release hydrogen (H2 ) from HB sheets. In this study, the electrochemical H2 release from HB sheets using a dispersion system in an organic solvent without other proton sources is investigated. H2 molecules are released from the HB sheets under the application of a cathodic potential. The Faradaic efficiency for H2 release from HB sheets reached >90%, and the onset potential for H2 release is -0.445 V versus Ag/Ag+ , which is more positive than those from other proton sources, such as water or formic acid, under the same electrochemical conditions. The total electrochemically released H2 in a long-time experiment reached ≈100% of the hydrogen capacity of HB sheets. The H2 release from HB sheets is driven by a small bias; thus, they can be applied as safe and lightweight hydrogen carriers with economical hydrogen release properties.
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Affiliation(s)
- Satoshi Kawamura
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8552, Japan
| | - Akira Yamaguchi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8552, Japan
| | - Keisuke Miyazaki
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8552, Japan
| | - Shin-Ichi Ito
- Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba, Tsukuba, 305-8573, Japan
| | - Norinobu Watanabe
- Graduate school of Science and Technology, University of Tsukuba, Tsukuba, 305-8573, Japan
| | - Ikutaro Hamada
- Department of Precision Engineering, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Takahiro Kondo
- Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba, Tsukuba, 305-8573, Japan
- The Advanced Institute for Materials Research, Tohoku University, Sendai, Miyagi, 980-8577, Japan
- Tsukuba Research Center for Energy Materials Science, Institute of Pure and Applied Sciences and R&D Center for Zero CO2 Emission Functional Materials, University of Tsukuba, Tsukuba, 305-8573, Japan
| | - Masahiro Miyauchi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8552, Japan
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Wang Y, Xue Y, Züttel A. Nanoscale engineering of solid-state materials for boosting hydrogen storage. Chem Soc Rev 2024; 53:972-1003. [PMID: 38111973 DOI: 10.1039/d3cs00706e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
The development of novel materials capable of securely storing hydrogen at high volumetric and gravimetric densities is a requirement for the wide-scale usage of hydrogen as an energy carrier. In recent years, great efforts via nanoscale tuning and designing strategies on both physisorbents and chemisorbents have been devoted to improvements in their thermodynamic and kinetic aspects. Increasing the hydrogen storage capacity/density for physisorbents and chemisorbents and improving the dehydrogenation kinetics of hydrides are still considered a challenge. The extensive and fast development of advanced nanotechnologies has fueled a surge in research that presents huge potential in designing solid-state materials to meet the ultimate U.S. Department of Energy capacity targets for onboard light-duty vehicles, material-handling equipments, and portable power applications. Different from the existing literature, in this review, particular attention is paid to the recent advances in nanoscale engineering of solid-state materials for boosting hydrogen storage, especially the nanoscale tuning and designing strategies. We first present a short overview of hydrogen storage mechanisms of nanoscale engineering for boosted hydrogen storage performance on solid-state materials, for example, hydrogen spillover, nanopump effect, nanosize effect, nanocatalysis, and other non-classical hydrogen storage mechanisms. Then, the focus is on recent advancements in nanoscale engineering strategies aimed at enhancing the gravimetric hydrogen storage capacity of porous materials, reducing dehydrogenation temperature and improving reaction kinetics and reversibility of hydrogen desorption/absorption for metal hydrides. Effective nanoscale tuning strategies for enhancing the hydrogen storage performance of porous materials include optimizing surface area and pore volume, fine-tuning nanopore sizes, introducing nanostructure doping, and crafting nanoarchitecture and nanohybrid materials. For metal hydrides, successful strategies involve nanoconfinement, nanosizing, and the incorporation of nanocatalysts. This review further addresses the points to future research directions in the hope of ushering in the practical applications of hydrogen storage materials.
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Affiliation(s)
- Yunting Wang
- Institute of Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland.
- Empa Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Yudong Xue
- Institute of Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland.
| | - Andreas Züttel
- Institute of Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland.
- Empa Materials Science and Technology, 8600 Dübendorf, Switzerland
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Maghsoudy S, Zakerabbasi P, Baghban A, Esmaeili A, Habibzadeh S. Connectionist technique estimates of hydrogen storage capacity on metal hydrides using hybrid GAPSO-LSSVM approach. Sci Rep 2024; 14:1503. [PMID: 38233572 PMCID: PMC10794233 DOI: 10.1038/s41598-024-52086-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 01/13/2024] [Indexed: 01/19/2024] Open
Abstract
The AB2 metal hydrides are one of the preferred choices for hydrogen storage. Meanwhile, the estimation of hydrogen storage capacity will accelerate their development procedure. Machine learning algorithms can predict the correlation between the metal hydride chemical composition and its hydrogen storage capacity. With this purpose, a total number of 244 pairs of AB2 alloys including the elements and their respective hydrogen storage capacity were collected from the literature. In the present study, three machine learning algorithms including GA-LSSVM, PSO-LSSVM, and HGAPSO-LSSVM were employed. These models were able to appropriately predict the hydrogen storage capacity in the AB2 metal hydrides. So the HGAPSO-LSSVM model had the highest accuracy. In this model, the statistical factors of R2, STD, MSE, RMSE, and MRE were 0.980, 0.043, 0.0020, 0.045, and 0.972%, respectively. The sensitivity analysis of the input variables also illustrated that the Sn, Co, and Ni elements had the highest effect on the amount of hydrogen storage capacity in AB2 metal hydrides.
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Affiliation(s)
- Sina Maghsoudy
- Surface Reaction and Advanced Energy Materials Laboratory, Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), PO Box 15875-4413, Tehran, Iran
| | - Pouya Zakerabbasi
- Surface Reaction and Advanced Energy Materials Laboratory, Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), PO Box 15875-4413, Tehran, Iran
| | - Alireza Baghban
- Chemical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Mahshahr Campus, Mahshahr, Iran.
| | - Amin Esmaeili
- Department of Chemical Engineering, School of Engineering Technology and Industrial Trades, College of the North Atlantic - Qatar, Doha, Qatar
| | - Sajjad Habibzadeh
- Surface Reaction and Advanced Energy Materials Laboratory, Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), PO Box 15875-4413, Tehran, Iran.
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Zhao Q, Zhao B, Long X, Feng R, Shakouri M, Paterson A, Xiao Q, Zhang Y, Fu XZ, Luo JL. Interfacial Electronic Modulation of Dual-Monodispersed Pt-Ni 3S 2 as Efficacious Bi-Functional Electrocatalysts for Concurrent H 2 Evolution and Methanol Selective Oxidation. NANO-MICRO LETTERS 2024; 16:80. [PMID: 38206434 PMCID: PMC10784266 DOI: 10.1007/s40820-023-01282-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 11/08/2023] [Indexed: 01/12/2024]
Abstract
Constructing the efficacious and applicable bi-functional electrocatalysts and establishing out the mechanisms of organic electro-oxidation by replacing anodic oxygen evolution reaction (OER) are critical to the development of electrochemically-driven technologies for efficient hydrogen production and avoid CO2 emission. Herein, the hetero-nanocrystals between monodispersed Pt (~ 2 nm) and Ni3S2 (~ 9.6 nm) are constructed as active electrocatalysts through interfacial electronic modulation, which exhibit superior bi-functional activities for methanol selective oxidation and H2 generation. The experimental and theoretical studies reveal that the asymmetrical charge distribution at Pt-Ni3S2 could be modulated by the electronic interaction at the interface of dual-monodispersed heterojunctions, which thus promote the adsorption/desorption of the chemical intermediates at the interface. As a result, the selective conversion from CH3OH to formate is accomplished at very low potentials (1.45 V) to attain 100 mA cm-2 with high electronic utilization rate (~ 98%) and without CO2 emission. Meanwhile, the Pt-Ni3S2 can simultaneously exhibit a broad potential window with outstanding stability and large current densities for hydrogen evolution reaction (HER) at the cathode. Further, the excellent bi-functional performance is also indicated in the coupled methanol oxidation reaction (MOR)//HER reactor by only requiring a cell voltage of 1.60 V to achieve a current density of 50 mA cm-2 with good reusability.
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Affiliation(s)
- Qianqian Zhao
- Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Bin Zhao
- Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.
| | - Xin Long
- Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Renfei Feng
- Canadian Light Source Inc., Saskatoon, SK, S7N 0X4, Canada
| | | | - Alisa Paterson
- Canadian Light Source Inc., Saskatoon, SK, S7N 0X4, Canada
| | - Qunfeng Xiao
- Canadian Light Source Inc., Saskatoon, SK, S7N 0X4, Canada
| | - Yu Zhang
- Instrumental Analysis Center of Shenzhen University (Lihu Campus), Shenzhen University, Shenzhen, 518055, People's Republic of China
| | - Xian-Zhu Fu
- Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Jing-Li Luo
- Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.
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Li D, Huang F, Ren B, Wang S, Zhang W, Zhu L. Microstructure and hydrogen storage properties of the Mg 2-xY xNi 0.9Co 0.1 (x = 0, 0.2, 0.3, and 0.4) alloys. Sci Rep 2024; 14:905. [PMID: 38195915 PMCID: PMC10776625 DOI: 10.1038/s41598-024-51602-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 01/07/2024] [Indexed: 01/11/2024] Open
Abstract
Rare earth elements have excellent catalytic effects on improving hydrogen storage properties of the Mg2Ni-based alloys. This study used a small amount of Y to substitute Mg partially in Mg2Ni0.9Co0.1 and characterized and discussed the effects of Y on the solidification and de-/hydrogenation behaviors. The Mg2-xYxNi0.9Co0.1 (x = 0, 0.2, 0.3, and 0.4) hydrogen storage alloys were prepared using a metallurgy method. The phase composition of the alloys was studied using X-ray diffraction (XRD). Additionally, their microstructure and chemical composition were studied using scanning electron microscopy and energy-dispersive X-ray spectroscopy, respectively. The hydrogen absorption and desorption properties of the alloys were studied using pressure-composition isotherms and differential scanning calorimetric (DSC) measurements. The structure of the as-cast Mg2Ni0.9Co0.1 alloy was composed of the peritectic Mg2Ni, eutectic Mg-Mg2Ni, and a small amount of pre-precipitated Mg-Ni-Co ternary phases, and was converted into the Mg2NiH4, Mg2Ni0.9Co0.1H4, and MgH2 phases after hydrogen absorption. Furthermore, the XRD patterns of the alloys showed the MgYNi4 phase and a trace amount of the Y2O3 phase along with the Mg and Mg2Ni phases after the addition of Y. After hydrogen absorption, the phase of the alloys was composed of the Mg2NiH4, MgH2, MgYNi4, YH3, Y2O3, and Mg2NiH0.3 phases. With the increase of Y addition, the area ratios of the peritectic Mg2Ni matrix phase in the Mg2-xYxNi0.9Co0.1 (x = 0, 0.2, 0.3, and 0.4) alloys gradually decreased until they disappeared. However, the eutectic structure gradually increased, and the microstructures of the alloys were obviously refined. The addition of Y improves the activation performance of the alloys. The alloy only needed one cycle of de-/hydrogenation to complete the activation for x = 0.4. The DSC curves showed that the initial dehydrogenation temperatures of Mg2Ni0.9Co0.1 and Mg1.8Y0.2Ni0.9Co0.1 were 200 and 156 °C, respectively. The desorption activation energies of the hydrides of the Mg2Ni0.9Co0.1 and Mg1.8Y0.2Ni0.9Co0.1 alloys calculated using the Kissinger method were 94.7 and 56.5 kJ/mol, respectively. Moreover, the addition of Y reduced the initial desorption temperature of the alloys and improved their kinetic properties.
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Affiliation(s)
- Defa Li
- School of Mechanical and Vehicle Engineering, West Anhui University, Luan, 237012, China
| | - Feng Huang
- Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, 430070, China.
| | - Bingzhi Ren
- School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Shujie Wang
- The 13th Research Institute, CETC, Shijiazhuang, 050051, China
| | - Wei Zhang
- School of Mechanical and Vehicle Engineering, West Anhui University, Luan, 237012, China
| | - Liming Zhu
- Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, 430070, China
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Sawahara K, Tanaka S, Kodaira T, Kanega R, Kawanami H. Iridium Catalyst Immobilized on Crosslinked Polyethyleneimine for Continuous Hydrogen Production Using Formic Acid. CHEMSUSCHEM 2024; 17:e202301282. [PMID: 37837416 DOI: 10.1002/cssc.202301282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/16/2023]
Abstract
Hydrogen is an alternative fuel that can play a critical role in achieving net zero emissions, leading to global environment sustainability. An iridium-immobilized catalyst based on polyethyleneimine (PEI) was synthesized and utilized for hydrogen production via formic acid dehydrogenation (FADH). Iridium complex is cross-linked with its ligand and PEI to form the immobilized catalyst, where the iridium content could be easily varied in the range of 1-10 %. The structure of the iridium-immobilized catalyst was confirmed using solid-state NMR, DNP NMR, and FTIR spectroscopies. The iridium-immobilized catalyst with PEI showed excellent catalytic activity for FADH, exhibiting the catalyst's highest turnover frequency (TOF) value of 73 200 h-1 and a large turnover number (TON) value of over 1 130 000. The catalyst could be used for continuous hydrogen production via FADH, exhibiting high durability for over 2 000 h with TON value of 332 889 without any degradation in catalytic activity. The obtained hydrogen gas was evaluated for power generation using a standard fuel cell, as well as achieved 5 h of stable power generation.
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Affiliation(s)
- Keito Sawahara
- Interdisciplinary Research Center for Catalysis Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
- Graduate School of Pure and Applied Science Department, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Shinji Tanaka
- Interdisciplinary Research Center for Catalysis Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Tetsuya Kodaira
- Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Ryoichi Kanega
- Research Institute for Energy Conservation, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Hajime Kawanami
- Interdisciplinary Research Center for Catalysis Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
- Graduate School of Pure and Applied Science Department, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8577, Japan
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36
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Woińska M, Hoser AA, Chodkiewicz ML, Woźniak K. Enhancing hydrogen positions in X-ray structures of transition metal hydride complexes with dynamic quantum crystallography. IUCRJ 2024; 11:45-56. [PMID: 37990870 PMCID: PMC10833390 DOI: 10.1107/s205225252300951x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 10/31/2023] [Indexed: 11/23/2023]
Abstract
Hirshfeld atom refinement (HAR) is a method which enables the user to obtain more accurate positions of hydrogen atoms bonded to light chemical elements using X-ray data. When data quality permits, this method can be extended to hydrogen-bonded transition metals (TMs), as in hydride complexes. However, addressing hydrogen thermal motions with HAR, particularly in TM hydrides, presents a challenge. At the same time, proper description of thermal vibrations can be vital for determining hydrogen positions correctly. In this study, we employ tools such as SHADE3 and Normal Mode Refinement (NoMoRe) to estimate anisotropic displacement parameters (ADPs) for hydrogen atoms during HAR and IAM refinements performed for seven structures of TM (Fe, Ni, Cr, Nb, Rh and Os) and metalloid (Sb) hydride complexes for which both the neutron and the X-ray structures have been determined. A direct comparison between neutron and HAR/SHADE3/NoMoRe ADPs reveals that the similarity between neutron hydrogen ADPs and those estimated with NoMoRe or SHADE3 is significantly higher than when hydrogen ADPs are refined with HAR. Regarding TM-H bond lengths, traditional HAR exhibits a slight advantage over the other methods. However, combining NoMoRe/SHADE3 with HAR results in a minor decrease in agreement with neutron TM-H bond lengths. For the Cr complex, for which high-resolution X-ray data were collected, an investigation of resolution-related effects was possible.
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Affiliation(s)
- Magdalena Woińska
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, Warsaw 02-089, Poland
| | - Anna A. Hoser
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, Warsaw 02-089, Poland
| | - Michał L. Chodkiewicz
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, Warsaw 02-089, Poland
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, Warsaw 02-089, Poland
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37
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Confer MP, Dixon DA. Acid Gas Capture by Nitrogen Heterocycle Ring Expansion. J Phys Chem A 2023; 127:10171-10183. [PMID: 37991507 DOI: 10.1021/acs.jpca.3c06094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Acid gases including CO2, OCS, CS2, and SO2 are emitted by industrial processes such as natural gas production or power plants, leading to the formation of acid rain and contributing to global warming as greenhouse gases. An important technological challenge is to capture acid gases and transform them into useful products. The capture of CO2, CS2, SO2, and OCS by ring expansion of saturated and unsaturated substituted nitrogen-strained ring heterocycles was computationally investigated at the G3(MP2) level. The effects of fluorine, methyl, and phenyl substituents on N and/or C were explored. The reactions for the capture CO2, CS2, SO2, and OCS by 3- and 4-membered N-heterocycles are exothermic, whereas ring expansion reactions with 5-membered rings are thermodynamically unfavorable. Incorporation of an OCS into the ring leads to the amide product being thermodynamically favored over the thioamide. CS2 and OCS capture reactions are more exothermic and exergonic than the corresponding CO2 and SO2 capture reactions due to bond dissociation enthalpy differences. Selected reaction energy barriers were calculated and correlated with the reaction thermodynamics for a given acid gas. The barriers are highest for CO2 and OCS and lowest for CS2 and SO2. The ability of a ring to participate in acid gas capture via ring expansion is correlated to ring strain energy but is not wholly dependent upon it. The expanded N-heterocycles produced by acid gas capture should be polymerizable, allowing for upcycling of these materials.
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Affiliation(s)
- Matthew P Confer
- Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - David A Dixon
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States
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38
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Shafqat Hayat M, Khalil RMA. Ab-initio exploration of unique and substantial computational properties of double hydrides Cs 2CaTlH 6, Cs 2SrTlH 6, & Cs 2BaTlH 6, for the computational manufacturing of hydrogen fuel cell: A DFT study. J Mol Graph Model 2023; 125:108600. [PMID: 37666056 DOI: 10.1016/j.jmgm.2023.108600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/28/2023] [Accepted: 08/13/2023] [Indexed: 09/06/2023]
Abstract
In the present article, the DFT based computational manufacturing for hydrogen fuel cell has been performed because hydrogen storage applications as one of the utmost explored research fields of the modern era. The discovery of novel and potential hydride perovskites materials has developed the current attention for hydrogen fuel cell and related applications. The double hydride perovskite Cs2CaTlH6, Cs2SrTlH6, Cs2BaTlH6 materials are promising for the computational manufacturing of hydrogen fuel cell because calculated tolerance factors for the considered materials are listed as Cs2CaTlH6 (0.90) > Cs2SrTlH6 (0.86) > Cs2BaTlH6 (0.84) illustrating the structure stability and compatibility along with metallic electronic behavior favorable for hydrogen storage devices. The mechanical parameters for the considered materials are also calculated to encounter the Born reliability, stability and compatibility criterion. The Pugh's ratio, poison coefficient and Cauchy pressure calculations confirmed the brittle character favorable for hydrogen fuel cell. Furthermore, gravimetric ratios recommended that the considered materials are suitable and favorable for hydrogen fuel cell as hydrogen fuel can sustain for longer time and contribute extraordinary assistances in transportation handling applications and multiplicity of power. In addition, the considered materials are thermodynamic and vibrational symmetry as no soft (imaginary) mode of phonon in dispersion curve is observed. In short, the considered materials Cs2CaTlH6, Cs2SrTlH6, Cs2BaTlH6 are novel, significant and potential candidates for the hydrogen fuel cell and motivate the experimental researcher to synthesize these materials for experimental manufacturing of hydrogen fuel cell to meet the energy demand of the present day.
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Affiliation(s)
| | - R M Arif Khalil
- Institute of Physics, Bahauddin Zakariya University, Multan, Pakistan.
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39
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Xu X, Lu Y, Shi J, Hao X, Ma Z, Yang K, Zhang T, Li C, Zhang D, Huang X, He Y. Corrosion-resistant cobalt phosphide electrocatalysts for salinity tolerance hydrogen evolution. Nat Commun 2023; 14:7708. [PMID: 38001072 PMCID: PMC10673868 DOI: 10.1038/s41467-023-43459-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Seawater electrolysis is a viable method for producing hydrogen on a large scale and low-cost. However, the catalyst activity during the seawater splitting process will dramatically degrade as salt concentrations increasing. Herein, CoP is discovered that could reject chloride ions far from catalyst in electrolyte based on molecular dynamic simulation. Thus, a binder-free electrode is designed and constructed by in-situ growth of homogeneous CoP on rGO nanosheets wrapped around the surface of Ti fiber felt for seawater splitting. As expected, the as-obtained CoP/rGO@Ti electrode exhibits good catalytic activity and stability in alkaline electrolyte. Especially, benefitting from the highly effective repulsive Cl- intrinsic characteristic of CoP, the catalyst maintains good catalytic performance with saturated salt concentration, and the overpotential increasing is less than 28 mV at 10 mA cm-2 from 0 M to saturated NaCl in electrolyte. Furthermore, the catalyst for seawater splitting performs superior corrosion-resistance with a low solubility of 0.04%. This work sheds fresh light into the development of efficient HER catalysts for salinity tolerance hydrogen evolution.
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Affiliation(s)
- Xinwu Xu
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Yang Lu
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Junqin Shi
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China.
| | - Xiaoyu Hao
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Zelin Ma
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Ke Yang
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Tianyi Zhang
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Chan Li
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Dina Zhang
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Xiaolei Huang
- Institute of Material and Chemistry, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, China.
| | - Yibo He
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China.
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40
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Ding P, Wang T, Chang P, Guan L, Liu Z, Xu C, Tao J. Multiple-Strategy Design of MOF-Derived N, P Co-Doped MoS 2 Electrocatalysts Toward Efficient Alkaline Hydrogen Evolution and Overall Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37910808 DOI: 10.1021/acsami.3c11802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
The multiple strategy design is crucial for enhancing the efficiency of nonprecious electrocatalysts in hydrogen evolution reaction (HER). In this work, we successfully synthesized N, P-codoped MoS2 nanosheets as highly efficient catalysts by integrating doping effects and phase engineering using a porous metal-organic framework (MOF) template. The electrocatalysts exhibit excellent bifunctional activity and stability in alkaline media. The N, P codoping induces electron redistribution to enhance conductivity and promote the intrinsic activity of the electrocatalysts. It optimizes the H* adsorption free energy and the dissociative adsorption energy, resulting in significant enhancement of HER activity. Moreover, the porous MOF structure exposes a large number of electrochemically active sites and facilitates the diffusion of ions and gases, which improve charge transfer efficiency and structural stability. Specifically, at a current density of 10 mA cm-2, the overpotential of the HER is only 32 mV, with a Tafel slope of 47 mV dec-1 and Faradaic efficiency as high as 98.51% (at 100 mA cm-2). Only a 338 mV overpotential is required to achieve a current density of 50 mA cm-2 for oxygen evolution reaction (OER), and a potential of 1.49 V (at 10 mA cm-2) is sufficient to drive overall water splitting. Further experimental measurements and first-principles calculations evidence that the exceptional performance is primarily attributed to the dual functionality of N and P dopants, which not only activate additional S sites but also initialize the phase transition of 2H to 1T-MoS2 to facilitate the rapid charge transfer. Through in-depth exploration of the combined design of multiple strategies for efficient catalysts, our work paves a new way for the development of future efficient nonprecious metal catalysts.
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Affiliation(s)
- Pengbo Ding
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300132, China
| | - Tian Wang
- School of Sciences, Hebei University of Technology, Tianjin 300401, China
| | - Pu Chang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300132, China
| | - Lixiu Guan
- School of Sciences, Hebei University of Technology, Tianjin 300401, China
| | - Zongli Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300132, China
| | - Chao Xu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300132, China
| | - Junguang Tao
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300132, China
- Hebei Engineering Laboratory of Photoelectronic Functional Crystals, Hebei University of Technology, Tianjin 300132, China
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41
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Chiu NC, Compton D, Gładysiak A, Simrod S, Khivantsev K, Woo TK, Stadie NP, Stylianou KC. Hydrogen Adsorption in Ultramicroporous Metal-Organic Frameworks Featuring Silent Open Metal Sites. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37913526 DOI: 10.1021/acsami.3c12139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
In this study, we utilized an ultramicroporous metal-organic framework (MOF) named [Ni3(pzdc)2(ade)2(H2O)4]·2.18H2O (where H3pzdc represents pyrazole-3,5-dicarboxylic acid and ade represents adenine) for hydrogen (H2) adsorption. Upon activation, [Ni3(pzdc)2(ade)2] was obtained, and in situ carbon monoxide loading by transmission infrared spectroscopy revealed the generation of open Ni(II) sites. The MOF displayed a Brunauer-Emmett-Teller (BET) surface area of 160 m2/g and a pore size of 0.67 nm. Hydrogen adsorption measurements conducted on this MOF at 77 K showed a steep increase in uptake (up to 1.93 mmol/g at 0.04 bar) at low pressure, reaching a H2 uptake saturation at 2.11 mmol/g at ∼0.15 bar. The affinity of this MOF for H2 was determined to be 9.7 ± 1.0 kJ/mol. In situ H2 loading experiments supported by molecular simulations confirmed that H2 does not bind to the open Ni(II) sites of [Ni3(pzdc)2(ade)2], and the high affinity of the MOF for H2 is attributed to the interplay of pore size, shape, and functionality.
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Affiliation(s)
- Nan Chieh Chiu
- Materials Discovery Laboratory (MaD Lab), Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Dalton Compton
- Department of Chemistry & Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Andrzej Gładysiak
- Materials Discovery Laboratory (MaD Lab), Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Scott Simrod
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie Private, Ottawa K1N 6N5, Canada
| | | | - Tom K Woo
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie Private, Ottawa K1N 6N5, Canada
| | - Nicholas P Stadie
- Department of Chemistry & Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Kyriakos C Stylianou
- Materials Discovery Laboratory (MaD Lab), Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
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42
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Xiao L, Yang Q, Zhu X, Wei Y, Wang J. Synergetic Effect and Phase Engineering by Formation of Ti 3C 2T x Modified 2H/1T-MoSe 2 Composites for Enhanced HER. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6991. [PMID: 37959588 PMCID: PMC10649555 DOI: 10.3390/ma16216991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023]
Abstract
The typical semi conductivity and few active sites of hydrogen evolution of 2H MoSe2 severely restrict its electrocatalytic hydrogen evolution performance. At the same time, the 1T MoSe2 has metal conductivity and plentiful hydrogen evolution sites, making it feasible to optimize the electrocatalytic hydrogen evolution behavior of MoSe2 using phase engineering. In this study, we, through a simple one-step hydrothermal method, composed 1T/2H MoSe2, and then used newly emerging transition metal carbides with several atomic-layer thicknesses Ti3C2Tx to improve the conductivity of a MoSe2-based electrocatalyst. Finally, MoSe2@Ti3C2Tx was successfully synthesized, according to the control of the additional amount of Ti3C2Tx, to form a proper MoSe2/ Ti3C2Tx heterostructure with a better electrochemical HER performance. As obtained MoSe2@4 mg-Ti3C2Tx achieved a low overpotential, a small Tafel slope and this work offers additional insight into broadened MoSe2 and MXenes-based catalyst's electrochemical application.
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Affiliation(s)
- Lei Xiao
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China;
| | - Qichao Yang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; (Q.Y.); (X.Z.)
| | - Xiangyang Zhu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; (Q.Y.); (X.Z.)
| | - Yang Wei
- Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University, Beijing 100084, China
| | - Jing Wang
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China;
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43
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Shi Y, Luo B, Liu R, Sang R, Cui D, Junge H, Du Y, Zhu T, Beller M, Li X. Atomically Dispersed Cobalt/Copper Dual-Metal Catalysts for Synergistically Boosting Hydrogen Generation from Formic Acid. Angew Chem Int Ed Engl 2023; 62:e202313099. [PMID: 37694769 DOI: 10.1002/anie.202313099] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 09/12/2023]
Abstract
The development of practical materials for (de)hydrogenation reactions is a prerequisite for the launch of a sustainable hydrogen economy. Herein, we present the design and construction of an atomically dispersed dual-metal site Co/Cu-N-C catalyst allowing significantly improved dehydrogenation of formic acid, which is available from carbon dioxide and green hydrogen. The active catalyst centers consist of specific CoCuN6 moieties with double-N-bridged adjacent metal-N4 clusters decorated on a nitrogen-doped carbon support. At optimal conditions the dehydrogenation performance of the nanostructured material (mass activity 77.7 L ⋅ gmetal -1 ⋅ h-1 ) is up to 40 times higher compared to commercial 5 % Pd/C. In situ spectroscopic and kinetic isotope effect experiments indicate that Co/Cu-N-C promoted formic acid dehydrogenation follows the so-called formate pathway with the C-H dissociation of HCOO* as the rate-determining step. Theoretical calculations reveal that Cu in the CoCuN6 moiety synergistically contributes to the adsorption of intermediate HCOO* and raises the d-band center of Co to favor HCOO* activation and thereby lower the reaction energy barrier.
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Affiliation(s)
- Yanzhe Shi
- School of Space and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Bingcheng Luo
- College of Science, China Agricultural University, Beijing, 100083, P. R. China
| | - Runqi Liu
- School of Space and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Rui Sang
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Dandan Cui
- Centre of Quantum and Matter Sciences International Research Institute for Multidisciplinary Science, Beihang University, Beijing, 100191, P. R. China
- School of Physics, Beihang University, Beijing, 100191, P. R. China
| | - Henrik Junge
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Yi Du
- Centre of Quantum and Matter Sciences International Research Institute for Multidisciplinary Science, Beihang University, Beijing, 100191, P. R. China
- School of Physics, Beihang University, Beijing, 100191, P. R. China
| | - Tianle Zhu
- School of Space and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Matthias Beller
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Xiang Li
- School of Space and Environment, Beihang University, Beijing, 100191, P. R. China
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44
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Nath N, Chakroborty S, Sharma S, Sharma A, Yadav AS, Alam T. A graphene-based material for green sustainable energy technology for hydrogen storage. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-30431-w. [PMID: 37872339 DOI: 10.1007/s11356-023-30431-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/07/2023] [Indexed: 10/25/2023]
Abstract
The usage of graphene-based materials (GMs) as energy storage is incredibly popular. Significant obstacles now exist in the way of the generation, storage and consumption of sustainable energy. A primary focus in the work being done to advance environmentally friendly energy technology is the development of effective energy storage materials. Due to their distinct two-dimensional structure and intrinsic physical qualities like good electrical conductivity and wide area, graphene-based materials have a significant potential to be used in energy storage devices. Graphene and GMs have been employed extensively for this due to their special mechanical, thermal, catalytic and other functional qualities. In this review, we covered the topic of employing GMs to store hydrogen for green energy.
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Affiliation(s)
- Nibedita Nath
- Department of Chemistry, D.S Degree College, Laida, Sambalpur, Odisha, 768214, India
| | - Subhendu Chakroborty
- Department of Basic Sciences, IITM, IES University, Bhopal, Madhya Pradesh, 462044, India.
| | - Sumit Sharma
- Department of Mechanical Engineering, Poornima College of Engineering, Jaipur, Rajasthan, 302022, India
| | - Abhishek Sharma
- Department of Mechanical Engineering, BIT Sindri, Dhanbad, Jharkhand, 828123, India
| | - Anil Singh Yadav
- Department of Mechanical Engineering, Bakhtiyarpur College of Engineering (Science, Technology and Technical Education Department, Govt. of Bihar), Bakhtiyarpur, Bihar, 803212, India
| | - Tabish Alam
- Building Energy Efficiency, CSIR-Central Building Research Institute, Roorkee, Uttarakhand, 247667, India
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45
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Knörr P, Lentz N, Albrecht M. Efficient additive-free formic acid dehydrogenation with a NNN-ruthenium complex. Catal Sci Technol 2023; 13:5625-5631. [PMID: 38013841 PMCID: PMC10544809 DOI: 10.1039/d3cy00512g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/16/2023] [Indexed: 11/29/2023]
Abstract
A new ruthenium complex containing a pyridylidene amine-based NNN ligand was developed as a catalyst precursor for formic acid dehydrogenation, which, as a rare example, does not require basic additives to display high activity (TOF ∼10 000 h-1). Conveniently, the complex is air-stable, but sensitive to light. Mechanistic investigations using UV-vis and NMR spectroscopic monitoring correlated with gas evolution profiles indicate rapid and reversible protonation of the central nitrogen of the NNN ligand as key step of catalyst activation, followed by an associative step for formic acid dehydrogenation.
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Affiliation(s)
- Pascal Knörr
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Nicolas Lentz
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Martin Albrecht
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern Freiestrasse 3 3012 Bern Switzerland
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46
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Chow D, Burns N, Boateng E, van der Zalm J, Kycia S, Chen A. Mechanical Exfoliation of Expanded Graphite to Graphene-Based Materials and Modification with Palladium Nanoparticles for Hydrogen Storage. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2588. [PMID: 37764617 PMCID: PMC10534434 DOI: 10.3390/nano13182588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 09/08/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023]
Abstract
Hydrogen is a promising green fuel carrier that can replace fossil fuels; however, its storage is still a challenge. Carbon-based materials with metal catalysts have recently been the focus of research for solid-state hydrogen storage due to their efficacy and low cost. Here, we report on the exfoliation of expanded graphite (EG) through high shear mixing and probe tip sonication methods to form graphene-based nanomaterial ShEG and sEG, respectively. The exfoliation processes were optimized based on electrochemical capacitance measurements. The exfoliated EG was further functionalized with palladium nanoparticles (Pd-NP) for solid-state hydrogen storage. The prepared graphene-based nanomaterials (ShEG and sEG) and the nanocomposites (Pd-ShEG and Pd-sEG) were characterized with various traditional techniques (e.g., SEM, TEM, EDX, XPS, Raman, XRD) and the advanced high-resolution pair distribution function (HRPDF) analysis. Electrochemical hydrogen uptake and release (QH) were measured, showing that the sEG decorated with Pd-NP (Pd-sEG, 31.05 mC cm-2) and ShEG with Pd-NP (Pd-ShEG, 24.54 mC cm-2) had a notable improvement over Pd-NP (9.87 mC cm-2) and the composite of Pd-EG (14.7 mC cm-2). QH showed a strong linear relationship with an effective surface area to volume ratio, indicating nanoparticle size as a determining factor for hydrogen uptake and release. This work is a promising step toward the design of the high-performance solid-state hydrogen storage devices through mechanical exfoliation of the substrate EG to control nanoparticle size and dispersion.
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Affiliation(s)
- Darren Chow
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada; (D.C.); (E.B.); (J.v.d.Z.)
| | - Nicholas Burns
- Department of Physics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada;
| | - Emmanuel Boateng
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada; (D.C.); (E.B.); (J.v.d.Z.)
| | - Joshua van der Zalm
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada; (D.C.); (E.B.); (J.v.d.Z.)
| | - Stefan Kycia
- Department of Physics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada;
| | - Aicheng Chen
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada; (D.C.); (E.B.); (J.v.d.Z.)
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47
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Banerjee T, Balasubramanian G. Predictive Modeling of Molecular Mechanisms in Hydrogen Production and Storage Materials. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6050. [PMID: 37687742 PMCID: PMC10488356 DOI: 10.3390/ma16176050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/23/2023] [Accepted: 08/27/2023] [Indexed: 09/10/2023]
Abstract
Hydrogen has been widely considered to hold promise for solving challenges associated with the increasing demand for green energy. While many chemical and biochemical processes produce molecular hydrogen as byproducts, electrochemical approaches using water electrolysis are considered to be a predominant method for clean and green hydrogen production. We discuss the current state-of-the-art in molecular hydrogen production and storage and, more significantly, the increasing role of computational modeling in predictively designing and deriving insights for enhancing hydrogen storage efficiency in current and future materials of interest. One of the key takeaways of this review lies in the continued development and implementation of large-scale atomistic simulations to enable the use of designer electrolyzer-electrocatalysts operating under targeted thermophysical conditions for increasing green hydrogen production and improving hydrogen storage in advanced materials, with limited tradeoffs for storage efficiency.
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48
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Zhang L, Zhang X, Zhang W, Huang Z, Fang F, Li J, Yang L, Gu C, Sun W, Gao M, Pan H, Liu Y. Nanoparticulate ZrNi: In Situ Disproportionation Effectively Enhances Hydrogen Cycling of MgH 2. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40558-40568. [PMID: 37581606 DOI: 10.1021/acsami.3c07952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
High thermal stability and sluggish absorption/desorption kinetics are still important limitations for using magnesium hydride (MgH2) as a solid-state hydrogen storage medium. One of the most effective solutions in improving hydrogen storage properties of MgH2 is to introduce a suitable catalyst. Herein, a novel nanoparticulate ZrNi with 10-60 nm in size was successfully prepared by co-precipitation followed by a molten-salt reduction process. The 7 wt % nano-ZrNi-catalyzed MgH2 composite desorbs 6.1 wt % hydrogen starting from ∼178 °C after activation, lowered by 99 °C relative to the pristine MgH2 (∼277 °C). The dehydrided sample rapidly absorbs ∼5.5 wt % H2 when operating at 150 °C for 8 min. The remarkably improved hydrogen storage properties are reasonably ascribed to the in situ formation of ZrH2, ZrNi2, and Mg2NiH4 caused by the disproportionation reaction of nano-ZrNi during the first de-/hydrogenation cycle. These catalytic active species are uniformly dispersed in the MgH2 matrix, thus creating a multielement, multiphase, and multivalent environment, which not only largely favors the breaking and rebonding of H-H bonds and the transfer of electrons between H- and Mg2+ but also provides multiple hydrogen diffusion channels. These findings are of particularly scientific importance for the design and preparation of highly active catalysts for hydrogen storage in light-metal hydrides.
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Affiliation(s)
- Lingchao Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
| | - Xin Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
- Taizhou Institute of Zhejiang University, Taizhou 318000, China
| | - Wenxuan Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
| | - Zhenguo Huang
- School of Civil & Environmental Engineering, University of Technology Sydney, 81 Broadway, Ultimo, New South Wales 2007, Australia
| | - Fang Fang
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Juan Li
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Limei Yang
- School of Civil & Environmental Engineering, University of Technology Sydney, 81 Broadway, Ultimo, New South Wales 2007, Australia
| | - Changdong Gu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
| | - Wenping Sun
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
| | - Mingxia Gao
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
| | - Hongge Pan
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an 710021, China
| | - Yongfeng Liu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an 710021, China
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49
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Almithn A. Effects of P:Ni Ratio on Methanol Steam Reforming on Nickel Phosphide Catalysts. Molecules 2023; 28:6079. [PMID: 37630331 PMCID: PMC10459788 DOI: 10.3390/molecules28166079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/10/2023] [Accepted: 08/13/2023] [Indexed: 08/27/2023] Open
Abstract
This study investigates the influence of the phosphorus-to-nickel (P:Ni) ratio on methanol steam reforming (MSR) over nickel phosphide catalysts using density functional theory (DFT) calculations. The catalytic behavior of Ni(111) and Ni12P5(001) surfaces was explored and contrasted to our previous results from research on Ni2P(001). The DFT-predicted barriers reveal that Ni(111) predominantly favors the methanol decomposition route, where methanol is converted into carbon monoxide through a stepwise pathway involving CH3OH* → CH3O* → CH2O* → CHO* → CO*. On the other hand, Ni12P5 with a P:Ni atomic ratio of 0.42 (5:12) exhibits a substantial increase in selectivity towards methanol steam reforming (MSR) relative to methanol decomposition. In this pathway, formaldehyde is transformed into CO2 through a sequence of reactions involving CH2O*→ H2COOH* → HCOOH* → HCOO* → CO2. The introduction of phosphorus into the catalyst alters the surface morphology and electronic structure, favoring the MSR pathway. However, with a further increase in the P:Ni atomic ratio to 0.5 (1:2) on Ni2P catalysts, the selectivity towards MSR decreases, resulting in a more balanced competition between methanol decomposition and MSR. These results highlight the significance of tuning the P:Ni atomic ratio in designing efficient catalysts for the selective production of CO2 through the MSR route, offering valuable insights into optimizing nickel phosphide catalysts for desired chemical transformations.
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Affiliation(s)
- Abdulrahman Almithn
- Department of Chemical Engineering, College of Engineering, King Faisal University, Al Ahsa 31982, Saudi Arabia
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50
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Liaw LJ, Liu ZQ, Chen PW, Liu SY, Dhanarajagopal A, Lo FY, Hong JY, Lin WC. Hydrogenation Effect on Interlayer Coupling and Magneto-Transport Properties of Pd/Co/Mg/Fe Multilayers. ACS OMEGA 2023; 8:26948-26954. [PMID: 37546610 PMCID: PMC10398686 DOI: 10.1021/acsomega.3c01778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/27/2023] [Indexed: 08/08/2023]
Abstract
Hydrogenation-induced modification of magnetic properties has been widely studied. A Mg spacer layer with high hydrogen storage stability was clamped in a Pd/Co/Mg/Fe multilayer structure to enhance its hydrogen storage stability and explore the structure's magneto-transport properties. After 1 bar hydrogen exposure, the formation of a stable MgH2 phase was demonstrated in an ambient environment at room temperature through X-ray diffraction. Lower magnetic coupling and enhanced magnetoresistance, compared to those of the as-grown sample, were observed using the longitudinal magneto-optical Kerr effect and a four-probe measurement. In this study, the hydrogenation stability of ferromagnetic multilayers was improved, and the concept of a hydrogenation-based spintronic device was developed.
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Affiliation(s)
- Li-Jie Liaw
- Department
of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Zi-Qi Liu
- Department
of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Po-Wei Chen
- Department
of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Shi-Yu Liu
- Department
of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
| | | | - Fang-Yuh Lo
- Department
of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Jhen-Yong Hong
- Department
of Physics, Tamkang University, New Taipei City 251301, Taiwan
| | - Wen-Chin Lin
- Department
of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
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