1
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Thangudu S, Wu CH, Hwang KC. Photocatalytic Dinitrogen Reduction to Ammonia over Biomimetic FeMoS x Nanosheets. ACS OMEGA 2024; 9:20629-20635. [PMID: 38737058 PMCID: PMC11080007 DOI: 10.1021/acsomega.4c03076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/07/2024] [Accepted: 04/12/2024] [Indexed: 05/14/2024]
Abstract
Reduction of atmospheric dinitrogen (N2) to ammonia (NH3) using water and sunlight in the absence of sacrificial reducing reagents at room temperature is very challenging and is considered an eco-friendly approach to meet the rapidly increasing demand for nitrogen storage, fertilizers, and a sustainable society. Currently, ammonia production via the energy-intensive Haber-Bosch process causes ∼350 million tons of carbon dioxide (CO2) emission per year. Interestingly, natural N2 fixation by the nitrogenase enzyme occurs under ambient conditions. Unfortunately, N2 fixation on biomimetic catalysts has rarely been studied. To mimic biological nitrogen fixation, herein, we synthesized the novel iron molybdenum sulfide (FeMoSx) micro-/nanosheets via a simple hydrothermal approach for the first time. Further, we successfully demonstrated the photochemical conversion of N2 to NH3 over a biomimetic FeMoSx photocatalyst. The estimated yield is around 99.79 ± 6.0 μmol/h/g photocatalyst with a quantum efficiency of ∼0.028% at 532 nm visible-light wavelength. Besides, we also systematically studied the influence of key factors to further improve NH3 yields. Overall, this study paves a new pathway to fabricate carbon-free, photochemical N2 fixation materials for future applications.
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Affiliation(s)
- Suresh Thangudu
- Department
of Chemistry, National Tsing
Hua University, Hsinchu 30013, Taiwan R.O.C
| | - Chein Hou Wu
- Department
of Biomedical Engineering and Environmental Science, National Tsing Hua University, Hsinchu 30013, Taiwan R.O.C
| | - Kuo Chu Hwang
- Department
of Chemistry, National Tsing
Hua University, Hsinchu 30013, Taiwan R.O.C
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2
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Wang M, Langer M, Altieri R, Crisci M, Osella S, Gatti T. Two-Dimensional Layered Heterojunctions for Photoelectrocatalysis. ACS NANO 2024; 18:9245-9284. [PMID: 38502101 DOI: 10.1021/acsnano.3c12274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Two-dimensional (2D) layered nanomaterial heterostructures, arising from the combination of 2D materials with other low-dimensional species, feature a large surface area to volume ratio, which provides a high density of active sites for catalytic applications and for (photo)electrocatalysis (PEC). Meanwhile, their electronic band structure and high electrical conductivity enable efficient charge transfer (CT) between the active material and the substrate, which is essential for catalytic activity. In recent years, researchers have demonstrated the potential of a range of 2D material interfaces, such as graphene, graphitic carbon nitride (g-C3N4), metal chalcogenides (MCs), and MXenes, for (photo)electrocatalytic applications. For instance, MCs such as MoS2 and WS2 have shown excellent catalytic activity for hydrogen evolution, while graphene and MXenes have been used for the reduction of carbon dioxide to higher value chemicals. However, despite their great potential, there are still major challenges that need to be addressed to fully realize the potential of 2D materials for PEC. For example, their stability under harsh reaction conditions, as well as their scalability for large-scale production are important factors to be considered. Generating heterojunctions (HJs) by combining 2D layered structures with other nanomaterials is a promising method to improve the photoelectrocatalytic properties of the former. In this review, we inspect thoroughly the recent literature, to demonstrate the significant potential that arises from utilizing 2D layered heterostructures in PEC processes across a broad spectrum of applications, from energy conversion and storage to environmental remediation. With the ongoing research and development, it is likely that the potential of these materials will be fully expressed in the near future.
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Affiliation(s)
- Mengjiao Wang
- Department of Applied Science and Technology, Politecnico di Torino, Torino, 10129, Italy
| | - Michal Langer
- Chemical and Biological Systems Simulation Lab, Centre of New Technologies, University of Warsaw, Warsaw, 02097, Poland
| | - Roberto Altieri
- Institute of Physical Chemistry and Center for Materials Research (LaMa), Justus Liebig University, Giessen, 35392, Germany
| | - Matteo Crisci
- Institute of Physical Chemistry and Center for Materials Research (LaMa), Justus Liebig University, Giessen, 35392, Germany
| | - Silvio Osella
- Chemical and Biological Systems Simulation Lab, Centre of New Technologies, University of Warsaw, Warsaw, 02097, Poland
| | - Teresa Gatti
- Department of Applied Science and Technology, Politecnico di Torino, Torino, 10129, Italy
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3
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Dai X, Du ZY, Sun Y, Chen P, Duan X, Zhang J, Li H, Fu Y, Jia B, Zhang L, Fang W, Qiu J, Ma T. Enhancing Green Ammonia Electrosynthesis Through Tuning Sn Vacancies in Sn-Based MXene/MAX Hybrids. NANO-MICRO LETTERS 2024; 16:89. [PMID: 38227269 DOI: 10.1007/s40820-023-01303-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/25/2023] [Indexed: 01/17/2024]
Abstract
Renewable energy driven N2 electroreduction with air as nitrogen source holds great promise for realizing scalable green ammonia production. However, relevant out-lab research is still in its infancy. Herein, a novel Sn-based MXene/MAX hybrid with abundant Sn vacancies, Sn@Ti2CTX/Ti2SnC-V, was synthesized by controlled etching Sn@Ti2SnC MAX phase and demonstrated as an efficient electrocatalyst for electrocatalytic N2 reduction. Due to the synergistic effect of MXene/MAX heterostructure, the existence of Sn vacancies and the highly dispersed Sn active sites, the obtained Sn@Ti2CTX/Ti2SnC-V exhibits an optimal NH3 yield of 28.4 µg h-1 mgcat-1 with an excellent FE of 15.57% at - 0.4 V versus reversible hydrogen electrode in 0.1 M Na2SO4, as well as an ultra-long durability. Noticeably, this catalyst represents a satisfactory NH3 yield rate of 10.53 µg h-1 mg-1 in the home-made simulation device, where commercial electrochemical photovoltaic cell was employed as power source, air and ultrapure water as feed stock. The as-proposed strategy represents great potential toward ammonia production in terms of financial cost according to the systematic technical economic analysis. This work is of significance for large-scale green ammonia production.
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Affiliation(s)
- Xinyu Dai
- Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Institute of Clean Energy Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Zhen-Yi Du
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China
| | - Ying Sun
- Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Institute of Clean Energy Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China.
| | - Ping Chen
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, People's Republic of China
| | - Xiaoguang Duan
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Junjun Zhang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, Ningxia, People's Republic of China
| | - Hui Li
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Yang Fu
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Baohua Jia
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Lei Zhang
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, People's Republic of China
| | - Wenhui Fang
- College of Chemical Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Jieshan Qiu
- College of Chemical Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
| | - Tianyi Ma
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia.
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4
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Qian Y, Zhang F, Luo X, Zhong Y, Kang DJ, Hu Y. Synthesis and Electrocatalytic Applications of Layer-Structured Metal Chalcogenides Composites. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310526. [PMID: 38221685 DOI: 10.1002/smll.202310526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/28/2023] [Indexed: 01/16/2024]
Abstract
Featured with the attractive properties such as large surface area, unique atomic layer thickness, excellent electronic conductivity, and superior catalytic activity, layered metal chalcogenides (LMCs) have received considerable research attention in electrocatalytic applications. In this review, the approaches developed to synthesize LMCs-based electrocatalysts are summarized. Recent progress in LMCs-based composites for electrochemical energy conversion applications including oxygen reduction reaction, carbon dioxide reduction reaction, oxygen evolution reaction, hydrogen evolution reaction, overall water splitting, and nitrogen reduction reaction is reviewed, and the potential opportunities and practical obstacles for the development of LMCs-based composites as high-performing active substances for electrocatalytic applications are also discussed. This review may provide an inspiring guidance for developing high-performance LMCs for electrochemical energy conversion applications.
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Affiliation(s)
- Yongteng Qian
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua, 321004, P. R. China
- College of Pharmacy, Jinhua Polytechnic, Jinhua, Zhejiang, 321007, P. R. China
| | - Fangfang Zhang
- College of Pharmacy, Jinhua Polytechnic, Jinhua, Zhejiang, 321007, P. R. China
| | - Xiaohui Luo
- College of Pharmacy, Jinhua Polytechnic, Jinhua, Zhejiang, 321007, P. R. China
| | - Yijun Zhong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua, 321004, P. R. China
| | - Dae Joon Kang
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Yong Hu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua, 321004, P. R. China
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, 311300, P. R. China
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5
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Zabelina A, Miliutina E, Dedek J, Trelin A, Zabelin D, Valiev R, Ramazanov R, Burtsev V, Popelkova D, Stastny M, Svorcik V, Lyutakov O. Nitrogen Photoelectrochemical Reduction on TiB 2 Surface Plasmon Coupling Allows Us to Reach Enhanced Efficiency of Ammonia Production. ACS Catal 2023; 13:10916-10926. [PMID: 37614521 PMCID: PMC10442910 DOI: 10.1021/acscatal.3c03210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 07/20/2023] [Indexed: 08/25/2023]
Abstract
Ammonia is one of the most widely produced chemicals worldwide, which is consumed in the fertilizer industry and is also considered an interesting alternative in energy storage. However, common ammonia production is energy-demanding and leads to high CO2 emissions. Thus, the development of alternative ammonia production methods based on available raw materials (air, for example) and renewable energy sources is highly demanding. In this work, we demonstrated the utilization of TiB2 nanostructures sandwiched between coupled plasmonic nanostructures (gold nanoparticles and gold grating) for photoelectrochemical (PEC) nitrogen reduction and selective ammonia production. The utilization of the coupled plasmon structure allows us to reach efficient sunlight capture with a subdiffraction concentration of light energy in the space, where the catalytically active TiB2 flakes were placed. As a result, PEC experiments performed at -0.2 V (vs. RHE) and simulated sunlight illumination give the 535.2 and 491.3 μg h-1 mgcat-1 ammonia yields, respectively, with the utilization of pure nitrogen and air as a nitrogen source. In addition, a number of control experiments confirm the key role of plasmon coupling in increasing the ammonia yield, the selectivity of ammonia production, and the durability of the proposed system. Finally, we have performed a series of numerical and quantum mechanical calculations to evaluate the plasmonic contribution to the activation of nitrogen on the TiB2 surface, indicating an increase in the catalytic activity under the plasmon-generated electric field.
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Affiliation(s)
- Anna Zabelina
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Elena Miliutina
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Jakub Dedek
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Andrii Trelin
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Denis Zabelin
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Rashid Valiev
- Department
of Chemistry, University of Helsinki, FI-00014 Helsinki, Finland
| | - Ruslan Ramazanov
- Department
of Chemistry, University of Helsinki, FI-00014 Helsinki, Finland
| | - Vasilii Burtsev
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Daniela Popelkova
- Institute
of Inorganic Chemistry, Czech Academy of
Sciences, 250 68 Husinec-Rez, Czech Republic
| | - Martin Stastny
- Institute
of Inorganic Chemistry, Czech Academy of
Sciences, 250 68 Husinec-Rez, Czech Republic
| | - Vaclav Svorcik
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Oleksiy Lyutakov
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
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6
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Sun C, Shao Z, Hu Y, Peng Y, Xie Q. Photoelectrocatalysis Synthesis of Ammonia Based on a Ni-Doped MoS 2/Si Nanowires Photocathode and Porous Water with High N 2 Solubility. ACS APPLIED MATERIALS & INTERFACES 2023; 15:23085-23092. [PMID: 37140159 DOI: 10.1021/acsami.3c01304] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The synthesis of ammonia through photocatalysis or photoelectrochemistry (PEC) and nitrogen reduction reaction (NRR) has become one of the recent research hotspots in the field, where the catalyzed materials and strategies are critical for the NRR. Herein, a Ni-doped MoS2/Si nanowires (Ni-MoS2/Si NWs) photocathode is prepared, where the Si NWs are formed on the surface of a Si slice by the metal-assisted chemical etching method, and the hydrothermally synthesized Ni-MoS2 nanosheets are then cast-coated on the Si NWs electrode. Porous water with high solubility of N2 is prepared by treating a hydrophobic porous coordination polymer with hydrophilic bovine serum albumin for subsequent aqueous dispersing. The relevant electrodes and materials are characterized by electrochemistry, UV-vis spectrophotometry, scanning electron microscopy/energy dispersive spectroscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller method, and zeta potential method. The uses of the Ni-MoS2/Si NWs photocathode and the porous water with high nitrogen solubility for PEC-NRR give a yield of NH3 of 12.0 mmol h-1 m-2 under optimal conditions (e.g., at 0.25 V vs RHE), and the obtained apparent Faradaic efficiency higher than 100% is discussed from the inherent photocurrent-free photocatalysis effect of the photoelectrodes and the suggested classification of three kinds of electrons in PEC, which may have some reference value in understanding and improving other PEC-based processes.
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Affiliation(s)
- Chenglong Sun
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Ziqi Shao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yan Hu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yueyi Peng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Qingji Xie
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
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7
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Li S, Cheng X, Han G, Si Y, Liu Y, Yu J, Ding B. Elastic and compressible Al 2O 3/ZrO 2/La 2O 3 nanofibrous membranes for firefighting protective clothing. J Colloid Interface Sci 2023; 636:83-89. [PMID: 36623369 DOI: 10.1016/j.jcis.2022.12.163] [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: 10/18/2022] [Revised: 12/14/2022] [Accepted: 12/29/2022] [Indexed: 01/01/2023]
Abstract
Developing ceramic nanofibrous membranes for the thermal insulation layer of firefighting protective clothing is vital. However, previous ceramic nanofibrous membranes were brittle and easy to break during service in high-temperature environments. The lack of elastic and compressible properties has limited the high-end applications of ceramic nanofibrous membranes. In this work, elastic and compressible Al2O3/ZrO2/La2O3 nanofibrous membranes were fabricated via sol-gel electrospinning and calcination in air at different temperatures. The as-fabricated Al2O3/ZrO2/La2O3 nanofibrous membranes can maintain excellent elasticity and compressibility in the temperature ranging from -196 to 1400 °C. Moreover, they have low thermal conductivity and high working temperatures. These favorable characteristics make the Al2O3/ZrO2/La2O3 nanofibrous membranes a promising candidate for the thermal insulation layer of firefighting protective clothing.
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Affiliation(s)
- Shouzhen Li
- College of Textiles and Clothing, Qingdao University, Shandong, Qingdao 266071, China
| | - Xiaota Cheng
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Guangting Han
- College of Textiles and Clothing, Qingdao University, Shandong, Qingdao 266071, China.
| | - Yang Si
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Yitao Liu
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China.
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Bin Ding
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China.
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8
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Niu ZY, Jiao L, Zhang T, Zhao XM, Wang XF, Tan Z, Liu LZ, Chen S, Song XZ. Boosting Electrocatalytic Ammonia Synthesis of Bio-Inspired Porous Mo-Doped Hematite via Nitrogen Activation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:55559-55567. [PMID: 36479880 DOI: 10.1021/acsami.2c16081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Electrochemical N2 reduction reaction (NRR) emerges as a highly attractive alternative to the Haber-Bosch process for producing ammonia (NH3) under ambient circumstances. Currently, this technology still faces tremendous challenges due to the low ammonia production rate and low Faradaic efficiency, urgently prompting researchers to explore highly efficient electrocatalysts. Inspired by the Fe-Mo cofactor in nitrogenase, we report Mo-doped hematite (Fe2O3) porous nanospheres containing Fe-O-Mo subunits for enhanced activity and selectivity in the electrochemical reduction from N2 to NH3. Mo-doping induces the morphology change from a solid sphere to a porous sphere and enriches lattice defects, creating more active sites. It also regulates the electronic structures of Fe2O3 to accelerate charge transfer and enhance the intrinsic activity. As a consequence, Mo-doped Fe2O3 achieves effective N2 fixation with a high ammonia production rate of 21.3 ± 1.1 μg h-1 mgcat.-1 as well as a prominent Faradaic efficiency (FE) of 11.2 ± 0.6%, superior to the undoped Fe2O3 and other iron oxide catalysts. Density functional theory (DFT) calculations further unravel that the Mo-doping in Fe2O3 (110) narrows the band gap, promotes the N2 activation on the Mo site with an elongated N≡N bond length of 1.132 Å in the end-on configuration, and optimizes an associative distal pathway with a decreased energy barrier. Our results may pave the way toward enhancing the electrocatalytic NRR performance of iron-based materials by atomic-scale heteroatom doping.
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Affiliation(s)
- Zan-Yao Niu
- Leicester International Institute, Dalian University of Technology, Panjin 124221, China
| | - Lei Jiao
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, China
| | - Tao Zhang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xiu-Ming Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xiao-Feng Wang
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, China
| | - Zhenquan Tan
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- Leicester International Institute, Dalian University of Technology, Panjin 124221, China
| | - Li-Zhao Liu
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, China
| | - Siru Chen
- School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Xue-Zhi Song
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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9
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Singh PP, Sinha S, Pandey G, Srivastava V. Molybdenum disulfide (MoS 2) based photoredox catalysis in chemical transformations. RSC Adv 2022; 12:29826-29839. [PMID: 36321108 PMCID: PMC9578401 DOI: 10.1039/d2ra05695j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/11/2022] [Indexed: 11/15/2022] Open
Abstract
Photoredox catalysis has been explored for chemical reactions by irradiation of photoactive catalysts with visible light, under mild and environmentally benign conditions. Furthermore, this methodology permits the activation of abundant chemicals into valuable products through novel mechanisms that are otherwise inaccessible. In this context, MoS2 has drawn attention due to its excellent solar spectral response and its notable electrical, optical, mechanical and magnetic properties. MoS2 has a number of characteristic properties like tunable band gap, enhanced absorption of visible light, a layered structure, efficient photon electron conversion, good photostability, non-toxic nature and quantum confinement effects that make it an ideal photocatalyst and co-catalyst for chemical transformations. Recently, MoS2 has gained synthetic utility in chemical transformations. In this review, we will discuss MoS2 properties, structure, synthesis techniques, and photochemistry along with modifications of MoS2 to enhance its photocatalytic activity with a focus on its applications and future challenges.
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Affiliation(s)
- Praveen P Singh
- Department of Chemistry, United College of Engineering & Research Prayagraj 211002 Uttar Pradesh India
| | - Surabhi Sinha
- Department of Chemistry, United College of Engineering & Research Prayagraj 211002 Uttar Pradesh India
| | - Geetika Pandey
- Department of Physics, United University Prayagraj 211012 Uttar Pradesh India
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj-211002 Uttar Pradesh India
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