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Valinton JAA, Lin MY, Tsai CH, Tsai CT, Chiu MJ, Chiu CC, Chen CH. A robust inorganic binder against corrosion and peel-off stress in electrocatalysis. Chem Sci 2024:d4sc04088k. [PMID: 39345769 PMCID: PMC11423651 DOI: 10.1039/d4sc04088k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 09/12/2024] [Indexed: 10/01/2024] Open
Abstract
Electrochemical binders used to immobilize electrocatalysts on electrodes are essential in all fields of electrochemistry. However, conventional organic-based binders like Nafion generally suffer from oxidative decomposition at high potentials on anodic electrodes and have high charge transport resistivity. This work proposes the use of acidic redox-assisted deposition to form cobalt manganese oxyhydroxides (CMOH) as a solid-state inorganic binder. CMOH remains stable under high oxidative currents and ensures catalyst adhesion even under significant peel-off stress as shown by experiments involving the alkaline oxygen evolution reaction (OER) using RuO2 as a catalyst immobilized on a rotating disc electrode. While the molecular structure of Nafion decays significantly after 45 minutes under OER conditions at 3.86 V, the CMOH binder is able to support the powder catalysts (RuO2 and NiO x ) showing stability around 1000 mA cm-2 without significant current decay over 24 hours. The robust catalyst adhesion is a result of the formation of chemical bonds between the electrode and the binder and it can be further improved by increasing the applied loading of CMOH. Unlike Nafion, both the OER activity and the diffusion kinetics are not significantly affected by the CMOH binder. It has also been shown that using CMOH as a binder leads to lower charge transfer resistances R ct and higher electrochemical surface areas compared to systems using Nafion. This is partially due to the presence of metal sites in different oxidation states which has been shown to increase intrinsic conductivity, facilitating the charge hopping at the binder/electrocatalyst interface. With this, the present work provides a proof-of-concept for inorganic metal oxides as promising solid-state binders for a wide range of applications in electrochemistry, demonstrating CMOH's outstanding characteristic of strong adhesion to support other highly active but adhesion-weak electrocatalysts.
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Affiliation(s)
- Joey Andrew A Valinton
- Department of Chemistry, National Sun Yat-sen University Kaohsiung 80424 Taiwan
- Green Hydrogen Research Center, National Sun Yat-sen University Kaohsiung 80424 Taiwan
| | - Meng-Yu Lin
- Department of Chemistry, National Sun Yat-sen University Kaohsiung 80424 Taiwan
| | - Cheng-Han Tsai
- Department of Chemistry, National Sun Yat-sen University Kaohsiung 80424 Taiwan
| | - Cheng-Te Tsai
- Department of Chemistry, National Sun Yat-sen University Kaohsiung 80424 Taiwan
| | - Ming-Jia Chiu
- Department of Chemistry, National Sun Yat-sen University Kaohsiung 80424 Taiwan
| | - Cheng-Chau Chiu
- Department of Chemistry, National Sun Yat-sen University Kaohsiung 80424 Taiwan
- Green Hydrogen Research Center, National Sun Yat-sen University Kaohsiung 80424 Taiwan
- Center for Theoretical and Computational Physics, National Sun Yat-sen University Kaohsiung 80424 Taiwan
| | - Chun-Hu Chen
- Department of Chemistry, National Sun Yat-sen University Kaohsiung 80424 Taiwan
- Green Hydrogen Research Center, National Sun Yat-sen University Kaohsiung 80424 Taiwan
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Wu C, Zhou L, Liu H, Wang N, Zhang Y. Rapid Synthesis of Nickel Hydroxide/Pt-Based Alloy Heterointerface for Hydrogen Evolution in Full pH Range. Inorg Chem 2024; 63:14231-14240. [PMID: 39012645 DOI: 10.1021/acs.inorgchem.4c02402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
The huge application potential of nanoelectrocatalysts can become available only under the condition of scalable and reproducible preparation of nanomaterials (NMs). It is easily overlooked that most of the preparation methods for efficient platinum (Pt)-based electrocatalysts are complicated in process and time-/energy-consuming, which is not conducive to scalable and sustainable production. Herein, we propose a rapid and facile method to in situ construct a heterointerface between nickel hydroxide (Ni(OH)2) and NiPt alloy, in which the preparation steps are easy-to-operate and can be finished in 1 h. Furthermore, the ensemble effect between the Ni(OH)2 substrate and NiPt active sites benefits the water dissociation process in nonacidic conditions, while the electronic effect in NiPt contributes to the downshifted d-band center of Pt and the proper Gibbs free energy of hydrogen species. As a result, the well-designed and quickly constructed Ni(OH)2-Ni3Pt heterointerfaces reveal lower overpotentials for HER compared with most reported Pt-based and commercial Pt/C catalysts in nonacidic conditions. This study is expected to provide useful reference information for the development of facile and robust methods for the preparation of more efficient Pt-based electrocatalysts.
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Affiliation(s)
- Chenshuo Wu
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Lei Zhou
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Huan Liu
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Ning Wang
- School of Science, Key Laboratory of High Performance Scientific Computation, Xihua University, Chengdu 610039, China
| | - Yingmeng Zhang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
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3
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Wu C, Zhou L, Zhang J, Wang B. Facile Synthesis of Multifunctional Ni(OH) 2 -Supported Core-Shell Ni@Pd Nanocomposites for the Electro-Oxidation of Small Organic Molecules. Chemistry 2023:e202303286. [PMID: 37830517 DOI: 10.1002/chem.202303286] [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: 10/08/2023] [Revised: 10/13/2023] [Accepted: 10/13/2023] [Indexed: 10/14/2023]
Abstract
In the domain of proton exchange membrane fuel cells (PEMFCs), the development of efficient and durable catalysts for the electro-oxidation of small organic molecules, especially of alcohols (methanol, ethanol, ethylene glycol, et al.) has always been a hot topic. A large number of related electrocatalysts with splendid performance have been designed and synthesized till now, while the preparation processes of most of them are demanding on experimental operations and conditions. Herein, we put forward a facile and handy method for the preparation of multifunctional Ni(OH)2 -supported core-shell Ni@Pd nanocomposites (Ni(OH)2 /Ni@Pd NCs) with the assistance of galvanic replacement reaction (GRR) at room temperature and ambient pressure. As expected, the Ni(OH)2 substrate can prevent the aggregation of core-shell (CS) Ni@Pd nanoparticles (NPs) and inhibit the formation of COads and further prevent Pd from being poisoned. The synergistic effect between CS Ni@Pd NPs and Ni(OH)2 substrate and the electronic effect between Pd shell and Ni core contribute to the outstanding electrocatalytic performance for methanol, ethanol, and ethylene glycol oxidation in alkaline condition. This study provides a succinct method for the design and preparation of efficient Pd-based electrocatalysts for alcohol electro-oxidation.
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Affiliation(s)
- Chenshuo Wu
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - Lei Zhou
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - Junxiang Zhang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - Bin Wang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, China
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, 610054, China
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4
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Peng C, Hou S, Yuan L, Liu Y, Guo F. Self‐Supporting and Shell‐Core Pd−Ni@Ni Nanowire Arrays Electrode as Anode of Direct Carbohydrazide Fuel Cell. ChemElectroChem 2023. [DOI: 10.1002/celc.202201007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Chao Peng
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Wuhan 430081 P. R. China
| | - Shuai Hou
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Wuhan 430081 P. R. China
| | - Lan Yuan
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Wuhan 430081 P. R. China
| | - Yi Liu
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Wuhan 430081 P. R. China
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials Hubei University of Science and Technology Xianning 437100 P. R. China
| | - Fen Guo
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Wuhan 430081 P. R. China
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Kamyabi MA, Jadali S, Alizadeh T. Ethanol Electrooxidation on Nickel Foam Arrayed with Templated PdSn; From Catalyst Fabrication to Electrooxidation Dominance Route. ChemElectroChem 2022. [DOI: 10.1002/celc.202200914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mohammad Ali Kamyabi
- Electroanalytical Chemistry Laboratory Department of Chemistry Faculty of Science University of Zanjan 45371-38791 Zanjan Iran
| | - Salma Jadali
- Electroanalytical Chemistry Laboratory Department of Chemistry Faculty of Science University of Zanjan 45371-38791 Zanjan Iran
| | - Taher Alizadeh
- Department of Analytical Chemistry Faculty of Chemistry University College of Science University of Tehran P.O. Box 14155–6455 Tehran Iran
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6
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Clímaco FR, Almeida CV, Aristides SS, Eguiluz KI, Salazar-Banda GR. Influence of the composition and morphology of PdNiFe/C nanocatalysts toward ethanol oxidation. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Wu R, Wang L. Insight and Activation Energy Surface of the Dehydrogenation of C2HxO Species in Ethanol Oxidation Reaction on Ir(100). Chemphyschem 2022; 23:e202200132. [PMID: 35446461 DOI: 10.1002/cphc.202200132] [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: 02/28/2022] [Revised: 04/20/2022] [Indexed: 11/10/2022]
Abstract
Dehydrogenation of an organic compound is the first and the most fundamental elementary reaction in many organic reactions. In ethanol oxidation reaction (EOR) to form CO 2 , there are a total of 46 pathways in C 2 H x O (x=1-6) species leading to the removal of all six hydrogen atoms in five C-H bonds and one O-H bond. To investigate the degree of dehydrogenation in EOR under operando conditions, we performed density function theory (DFT) calculations to study 28 dehydrogenation steps of C 2 H x O on Ir(100). An activation energy surface was then constructed and compared with that of the C-C bond cleavages to understand the importance of the degree of dehydrogenation in EOR. The results show that there are likely 28 dehydrogenations in EOR under fuel cell temperatures and the last two hydrogens in C 2 H 2 O are less likely cleaved. On the other hand, deep dehydrogenation including 45 dehydrogenations can occur under ethanol steam reforming conditions.
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Affiliation(s)
- Ruitao Wu
- Southern Illinois University Carbondale, Chemistry and Biochemistry, UNITED STATES
| | - Lichang Wang
- Southern Illinois University Carbondale, Department of Chemistry and Biochemistry, 224 Neckers Hall, 62901, Carbondale, UNITED STATES
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Sawut N, Jamal R, Abdiryim T, Ali A, Kadir A, Helil Z, Niyaz M, Liu Y. Enhanced electrocatalytic performance of hydroxyl‑grafted PProDOT:PSS/YRFC/Pt composites for direct alcohol fuel cells. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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9
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LIANG YY, WU Q, LIANG F. Analysis of Catalytic Activity of Au@Pd Core-shell Nanodendrites for Highly Efficient Ethanol Electrooxidation. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1016/s1872-2040(21)60103-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Yaqoob L, Noor T, Iqbal N. A comprehensive and critical review of the recent progress in electrocatalysts for the ethanol oxidation reaction. RSC Adv 2021; 11:16768-16804. [PMID: 35479139 PMCID: PMC9032615 DOI: 10.1039/d1ra01841h] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 04/17/2021] [Indexed: 02/02/2023] Open
Abstract
The human craving for energy is continually mounting and becoming progressively difficult to gratify. At present, the world's massive energy demands are chiefly encountered by nonrenewable and benign fossil fuels. However, the development of dynamic energy cradles for a gradually thriving world to lessen fossil fuel reserve depletion and environmental concerns is currently a persistent issue for society. The discovery of copious nonconventional resources to fill the gap between energy requirements and supply is the extreme obligation of the modern era. A new emergent, clean, and robust alternative to fossil fuels is the fuel cell. Among the different types of fuel cells, the direct ethanol fuel cell (DEFCs) is an outstanding option for light-duty vehicles and portable devices. A critical tactic for obtaining sustainable energy sources is the production of highly proficient, economical and green catalysts for energy storage and conversion devices. To date, a broad range of research is available for using Pt and modified Pt-based electrocatalysts to augment the C2H5OH oxidation process. Pt-based nanocubes, nanorods, nanoflowers, and the hybrids of Pt with metal oxides such as Fe2O3, TiO2, SnO2, MnO, Cu2O, and ZnO, and with conducting polymers are extensively utilized in both acidic and basic media. Moreover, Pd-based materials, transition metal-based materials, as well as transition metal-based materials are also points of interest for researchers nowadays. This review article delivers a broad vision of the current progress of the EOR process concerning noble metals and transition metals-based materials.
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Affiliation(s)
- Lubna Yaqoob
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Tayyaba Noor
- School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST) Islamabad Pakistan +92 51 9085 5121
| | - Naseem Iqbal
- U.S.-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST) H-12 Campus Islamabad 44000 Pakistan
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11
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12
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Zhang H, Feng Z, Wang L, Li D, Xing P. Bifunctional nanoporous Ni-Zn electrocatalysts with super-aerophobic surface for high-performance hydrazine-assisted hydrogen production. NANOTECHNOLOGY 2020; 31:365701. [PMID: 32413873 DOI: 10.1088/1361-6528/ab9396] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In the present study, an effective approach is proposed to replace the oxygen evolution reaction with the substituted anodic hydrazine oxidation reaction (HzOR) to assist in hydrogen generation based on a bifunctional porous Ni-Zn electrocatalyst with nanosheet arrays. The Ni-Zn catalyst exhibits an extraordinary HzOR performance with a high current density of 970 mA cm-2 at 0.7 V, and 93.8% of its initial activity after 5000 s, simultaneously delivering an overpotential of 68 mV at 10 mA cm-2 for the hydrogen evolution reaction. Moreover, the electrolytic cell is constructed employing Ni-Zn catalysts as both the anode and cathode, achieving 100 mA cm-2 at an ultralow cell voltage of 0.497 V with an outstanding stability over 10 h. The superior electrocatalytic performance can be ascribed to its porous structure with large active surface area, high electrical conductivity, and most importantly the super-aerophobic nature of the Ni-Zn surface. This work also provides a novel approach to designing and constructing porous structured non-noble metal bifunctional electrocatalysts with super-aerophobic surface to be used for energy-saving hydrogen production.
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Affiliation(s)
- Han Zhang
- School of Metallurgy, Northeastern University, Shenyang, Liaoning 110819, People's Republic of China
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13
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Prussian blue analogue-derived porous bimetallic oxides Fe3O4–NiO/NF as urea oxidation electrocatalysis. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01260-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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14
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Engineering 3D hierarchical thorn-like PtPdNiCu alloyed nanotripods with enhanced performances for methanol and ethanol electrooxidation. J Colloid Interface Sci 2020; 575:425-432. [PMID: 32402824 DOI: 10.1016/j.jcis.2020.04.120] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/17/2020] [Accepted: 04/27/2020] [Indexed: 01/28/2023]
Abstract
Developing efficient and stable electrocatalysts with three-dimensional (3D) hierarchical nanostructures is extremely important in practical applications of direct alcohol fuel cells. Herein, 3D hierarchical thorn-like multi-metallic PtPdNiCu alloyed nanotripods (PtPdNiCu TNTPs) were efficiently fabricated by a one-pot aqueous method, in which Pluronic F127 performed as the structure-director and dispersing agent. The as-prepared PtPdNiCu TNTPs exhibited distinct electrocatalytic activity for methanol oxidation reaction (MOR) with a mass activity (MA) of 1.465 A mg-1Pd, which is superior to commercial Pt/C (0.925 A mg-1Pd) in 1.0 M KOH solution, along with the greater MA (1.019 A mg-1Pd) for ethanol oxidation reaction (EOR) than Pt/C (0.712 A mg-1Pd). This work would provide an impetus for rationally constructing multimetal nanomaterials to commercial implementation of advanced alcohol fuel cells.
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15
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Lei Y, Liu Y, Fan B, Mao L, Yu D, Huang Y, Guo F. Facile fabrication of hierarchically porous Ni foam@Ag-Ni catalyst for efficient hydrazine oxidation in alkaline medium. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.09.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Du M, Sun H, Li J, Ye X, Yue F, Yang J, Liu Y, Guo F. Integrative Ni@Pd‐Ni Alloy Nanowire Array Electrocatalysts Boost Hydrazine Oxidation Kinetics. ChemElectroChem 2019. [DOI: 10.1002/celc.201901303] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Mengmeng Du
- Wuhan Second Ship Design and Research Institute Wuhan 430064 P. R. China
| | - Haijun Sun
- Wuhan Second Ship Design and Research Institute Wuhan 430064 P. R. China
| | - Junwen Li
- Wuhan Second Ship Design and Research Institute Wuhan 430064 P. R. China
| | - Xiaoli Ye
- Wuhan Second Ship Design and Research Institute Wuhan 430064 P. R. China
| | - Fangyuan Yue
- Wuhan Second Ship Design and Research Institute Wuhan 430064 P. R. China
| | - Jifei Yang
- Wuhan Second Ship Design and Research Institute Wuhan 430064 P. R. China
| | - Yi Liu
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials School of Chemistry and Chemical EngineeringWuhan University of Science and Technology Wuhan 430081 P. R. China
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE) College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P. R. China
| | - Fen Guo
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials School of Chemistry and Chemical EngineeringWuhan University of Science and Technology Wuhan 430081 P. R. China
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17
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Zhang Y, Gao F, Wang C, Shiraishi Y, Du Y. Engineering Spiny PtFePd@PtFe/Pt Core@Multishell Nanowires with Enhanced Performance for Alcohol Electrooxidation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:30880-30886. [PMID: 31368299 DOI: 10.1021/acsami.9b09110] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Engineering robust electrocatalysts is always a key point in direct alcohol fuel cells. Catalysts with a one-dimension (1D) structure are well studied and considered as promising candidates among various catalysts in the past decades; however, the precise regulation on the surface structure of 1D nanomaterials is still a worthy subject. By creatively introducing a trimetallic nanoalloy, core@multishell structure, and 1D nanowire (NW) morphology, we have constructed a kind of novel spiny PtFePd@PtFe/Pt core@multishell 1D NW catalysts with PtFePd as the core and PtFe/Pt as the multishell on the basis of improving catalytic property. The composition-optimized Pt5FePd2 1D NWs display remarkable catalytic properties for ethanol oxidation reaction and methanol oxidation reaction, in which mass activities are 4.965 and 4.038 A mg-1, 4.6 and 5.0 and 4.0 and 9.2-fold higher than Pt/C and Pd/C catalysts. Furthermore, the obtained Pt5FePd2 NWs can also retain favorable stability after durability tests. The unique core@multishell structure, spiny 1D NWs with many steps and kinks, and interior electronic and synergistic effect all contribute to the advanced catalytic performance. The present work has rationally designed the novel 1D PtFePd@PtFe/Pt core@multishell NW catalysts and offered a meaningful guideline for the designing of high-performance electrocatalysts.
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Affiliation(s)
- Yangping Zhang
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , 199 Renai Road , Suzhou 215123 , P.R. China
| | - Fei Gao
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , 199 Renai Road , Suzhou 215123 , P.R. China
| | - Caiqin Wang
- College of Science , Nanjing Forestry University , 159 Longpan Road , Nanjing 210037 , P.R. China
| | - Yukihide Shiraishi
- Tokyo University of Science Yamaguchi , Sanyo-Onoda-shi , Yamaguchi 756-0884 , Japan
| | - Yukou Du
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , 199 Renai Road , Suzhou 215123 , P.R. China
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18
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McClure JP, Boltersdorf J, Baker DR, Farinha TG, Dzuricky N, Villegas CEP, Rocha AR, Leite MS. Structure-Property-Performance Relationship of Ultrathin Pd-Au Alloy Catalyst Layers for Low-Temperature Ethanol Oxidation in Alkaline Media. ACS APPLIED MATERIALS & INTERFACES 2019; 11:24919-24932. [PMID: 31044596 DOI: 10.1021/acsami.9b01389] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Pd-containing alloys are promising materials for catalysis. Yet, the relationship of the structure-property performance strongly depends on their chemical composition, which is currently not fully resolved. Herein, we present a physical vapor deposition methodology for developing PdxAu1-x alloys with fine control over the chemical composition. We establish direct correlations between the composition and these materials' structural and electronic properties with its catalytic activity in an ethanol (EtOH) oxidation reaction. By combining X-ray diffraction (XRD) and X-ray photelectron spectroscopy (XPS) measurements, we validate that the Pd content within both bulk and surface compositions can be finely controlled in an ultrathin-film regime. Catalytic oxidation of EtOH on the PdxAu1-x electrodes presents the largest forward-sweeping current density for x = 0.73 at ∼135 mA cm-2, with the lowest onset potential and largest peak activity of 639 A gPd-1 observed for x = 0.58. Density functional theory (DFT) calculations and XPS measurements demonstrate that the valence band of the alloys is completely dominated by Pd particularly near the Fermi level, regardless of its chemical composition. Moreover, DFT provides key insights into the PdxAu1-x ligand effect, with relevant chemisorption activity descriptors probed for a large number of surface arrangements. These results demonstrate that alloys can outperform pure metals in catalytic processes, with fine control of the chemical composition being a powerful tuning knob for the electronic properties and, therefore, the catalytic activity of ultrathin PdxAu1-x catalysts. Our high-throughput experimental methodology, in connection with DFT calculations, provides a unique foundation for further materials' discovery, including machine-learning predictions for novel alloys, the development of Pd-alloyed membranes for the purification of reformate gases, binder-free ultrathin electrocatalysts for fuel cells, and room temperature lithography-based development of nanostructures for optically driven processes.
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Affiliation(s)
- Joshua P McClure
- Sensors and Electron Devices Directorate , U.S. Army Research Laboratory , Adelphi , Maryland 20783 , United States
| | - Jonathan Boltersdorf
- Sensors and Electron Devices Directorate , U.S. Army Research Laboratory , Adelphi , Maryland 20783 , United States
| | - David R Baker
- Sensors and Electron Devices Directorate , U.S. Army Research Laboratory , Adelphi , Maryland 20783 , United States
| | | | | | - Cesar E P Villegas
- Instituto de Física Teórica , Universidade Estadual Paulista , São Paulo , 01140-070 , Brazil
- Departamento de Ciencias , Universidad Privada del Norte , Avenida Andrés Belaunde cdra 10 s/n , Comas , Peru
| | - Alexandre R Rocha
- Instituto de Física Teórica , Universidade Estadual Paulista , São Paulo , 01140-070 , Brazil
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19
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Bai J, Liu D, Yang J, Chen Y. Nanocatalysts for Electrocatalytic Oxidation of Ethanol. CHEMSUSCHEM 2019; 12:2117-2132. [PMID: 30834720 DOI: 10.1002/cssc.201803063] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 03/01/2019] [Indexed: 06/09/2023]
Abstract
The use of ethanol as a fuel in direct alcohol fuel cells depends not only on its ease of production from renewable sources, but also on overcoming the challenges of storage and transportation. In an ethanol-based fuel cell, highly active electrocatalysts are required to break the C-C bond in ethanol for its complete oxidation at lower overpotentials, with the aim of increasing the cell performance, ethanol conversion rates, and fuel efficiency. In recent decades, the development of wet-chemistry methods has stimulated research into catalyst design, reactivity tailoring, and mechanistic investigations, and thus, created great opportunities to achieve efficient oxidation of ethanol. In this Minireview, the nanomaterials tested as electrocatalysts for the ethanol oxidation reaction in acid or alkaline environments are summarized. The focus is mainly on nanomaterials synthesized by using wet-chemistry methods, with particular attention on the relationship between the chemical and physical characteristics of the catalysts, for example, catalyst composition, morphology, structure, degree of alloying, presence of oxides or supports, and their activity for ethanol electro-oxidation. As potential alternatives to noble metals, non-noble-metal catalysts for ethanol oxidation are also briefly reviewed. Insights into further enhancing the catalytic performance through the design of efficient electrocatalysts are also provided.
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Affiliation(s)
- Juan Bai
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of, Education), Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, PR China
| | - Danye Liu
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering Address, Chinese Academy of Sciences, Beijing, 100190, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Jun Yang
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering Address, Chinese Academy of Sciences, Beijing, 100190, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yu Chen
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of, Education), Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, PR China
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Hierarchical nanoporous Ni(Cu) alloy anchored on amorphous NiFeP as efficient bifunctional electrocatalysts for hydrogen evolution and hydrazine oxidation. J Catal 2019. [DOI: 10.1016/j.jcat.2019.03.039] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abstract
Combining 1D metal nanotubes and nanowires into cross-linked 2D and 3D architectures represents an attractive design strategy for creating tailored unsupported catalysts. Such materials complement the functionality and high surface area of the nanoscale building blocks with the stability, continuous conduction pathways, efficient mass transfer, and convenient handling of a free-standing, interconnected, open-porous superstructure. This review summarizes synthetic approaches toward metal nano-networks of varying dimensionality, including the assembly of colloidal 1D nanostructures, the buildup of nanofibrous networks by electrospinning, and direct, template-assisted deposition methods. It is outlined how the nanostructure, porosity, network architecture, and composition of such materials can be tuned by the fabrication conditions and additional processing steps. Finally, it is shown how these synthetic tools can be employed for designing and optimizing self-supported metal nano-networks for application in electrocatalysis and related fields.
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Zhao L, Zhao L, Tian S, Ming H, Gu X, Zhou Q, Zheng J. Ordered SiO2 cavity promoted formation of gold single crystal nanoparticles towards an efficient electrocatalytic application. NEW J CHEM 2018. [DOI: 10.1039/c8nj03235a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A [111] facet dominated gold single crystal electrode with improved electrocatalytic ability for the oxidation of ethanol and nitrite.
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Affiliation(s)
- Lili Zhao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
| | - Ling Zhao
- School of Chemistry and Chemical Engineering
- Nantong University
- Nantong 226019
- P. R. China
| | - Shu Tian
- School of Chemistry and Chemical Engineering
- Nantong University
- Nantong 226019
- P. R. China
| | - Hai Ming
- Research Institute of Chemical Defense
- Beijing 100191
- P. R. China
| | - Xuefang Gu
- School of Chemistry and Chemical Engineering
- Nantong University
- Nantong 226019
- P. R. China
| | - Qun Zhou
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
| | - Junwei Zheng
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
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