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Chai H, Ma X, Dang Y, Zhang Y, Yue F, Pang X, Wang G, Yang C. Triple roles of Ni(OH) 2 promoting the electrocatalytic activity and stability of Ni 3S 4@Ni(OH) 2 in anion exchange membrane water electrolyzers. J Colloid Interface Sci 2024; 654:66-75. [PMID: 37837852 DOI: 10.1016/j.jcis.2023.10.021] [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: 08/04/2023] [Revised: 10/04/2023] [Accepted: 10/06/2023] [Indexed: 10/16/2023]
Abstract
Developing high performance and durable electrocatalysts is crucial for the practical application of large-scale water splitting under high current density. Here, we constructed a Mott-Schottky heterojunction bifunctional electrocatalyst coating of Ni3S4 with Ni(OH)2 thin film supported on Ni foam substrate (Ni3S4@Ni(OH)2) for anion exchange membrane water electrolyzers (AEMWEs). Remarkably, the η500 is as low as 274.6 mV toward the hydrogen evolution reaction and 423.8 mV toward the oxygen evolution reaction. AEMWEs deliver a stable performance that achieves current densities of 500 and 1000 mA cm-2 at a cell voltage of 1.84 and 1.95 V, respectively. In particular, the Ni3S4@Ni(OH)2 exhibits durable stability for 100 h at 500 mA cm-2 without significant degradation and uses 0.75 kW·h of electricity less than commercial Ni foam electrode to produce each standard cubic meter of hydrogen gas at 500 mA cm-2. The excellent performance is ascribed to the triple roles of Ni(OH)2, which prevent the inner Ni3S4 from decomposing during the reaction process, promoting the dissociation of water and formation of adsorbed hydrogen intermediate and accelerating electron transfer ability due to the Mott-Schottky heterojunction between Ni(OH)2 and Ni3S4. This work sheds light on the development of advanced bifunctional electrocatalysts based on non-precious transition metals for AEMWEs.
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Affiliation(s)
- Hongmei Chai
- College of Chemistry & Chemical Engineering, Yan'an University, Yan'an Key Laboratory of Green Hydrogen Energy and Biomass Catalytic Conversion, Yan'an 716000, Shaanxi, China
| | - Xu Ma
- College of Chemistry & Chemical Engineering, Yan'an University, Yan'an Key Laboratory of Green Hydrogen Energy and Biomass Catalytic Conversion, Yan'an 716000, Shaanxi, China.
| | - Yuechen Dang
- College of Chemistry & Chemical Engineering, Yan'an University, Yan'an Key Laboratory of Green Hydrogen Energy and Biomass Catalytic Conversion, Yan'an 716000, Shaanxi, China
| | - Yanqun Zhang
- College of Chemistry & Chemical Engineering, Yan'an University, Yan'an Key Laboratory of Green Hydrogen Energy and Biomass Catalytic Conversion, Yan'an 716000, Shaanxi, China
| | - Feng Yue
- College of Chemistry & Chemical Engineering, Yan'an University, Yan'an Key Laboratory of Green Hydrogen Energy and Biomass Catalytic Conversion, Yan'an 716000, Shaanxi, China
| | - Xiangxiang Pang
- College of Chemistry & Chemical Engineering, Yan'an University, Yan'an Key Laboratory of Green Hydrogen Energy and Biomass Catalytic Conversion, Yan'an 716000, Shaanxi, China
| | - Guangqing Wang
- College of Chemistry & Chemical Engineering, Yan'an University, Yan'an Key Laboratory of Green Hydrogen Energy and Biomass Catalytic Conversion, Yan'an 716000, Shaanxi, China.
| | - Chunming Yang
- College of Chemistry & Chemical Engineering, Yan'an University, Yan'an Key Laboratory of Green Hydrogen Energy and Biomass Catalytic Conversion, Yan'an 716000, Shaanxi, China.
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Zhang N, Huang S, Chen L, Li Y, Tang M, Pei Q, Liu J. Superhydrophilic/superaerophobic amorphous Ni 3S 2/NiMoS electrocatalyst for enhanced hydrogen evolution. J Colloid Interface Sci 2023; 652:95-103. [PMID: 37591087 DOI: 10.1016/j.jcis.2023.08.087] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 08/11/2023] [Accepted: 08/11/2023] [Indexed: 08/19/2023]
Abstract
It is important to develop electrocatalysts that are cheap and have high activity for hydrogen evolution reaction (HER). In this work, Ni3S2/NiMoS with amorphous phase and unique candied-haws shaped nanoarray structure was successfully grown on nickel foam (Ni3S2/NiMoS/NF) as efficient HER catalyst. Combining Ni3S2 with NiMoS resulted in the extension of the heterointerfaces between the materials, which facilitated the HER process in alkaline medium. The amorphous Ni3S2/NiMoS with disordered atom arrangement provided abundant active sites. Also, the unique morphology of the catalytic electrode simultaneously enabled it exhibit superhydrophilicity and underwater superaerophobicity. It is beneficial for the sufficient diffusion of the electrolyte onto the catalyst surface and the fast departure of hydrogen bubbles from the surface. As a result, the activity of Ni3S2/NiMoS/NF was higher than that of Pt/C even at high current densities. It is very valuable for industrial applications that require high current density. The superior stability of Ni3S2/NiMoS/NF compared to Pt/C further demonstrated that this catalytic electrode has potential for industrial applications.
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Affiliation(s)
- Nan Zhang
- State Key Laboratory of Heavy Oil Processing, Basic Research Center for Energy Interdisciplinary, College of Science, China University of Petroleum, Beijing, 18 Fuxue Road, Changping District, Beijing 102249, PR China.
| | - Shanshan Huang
- State Key Laboratory of Heavy Oil Processing, Basic Research Center for Energy Interdisciplinary, College of Science, China University of Petroleum, Beijing, 18 Fuxue Road, Changping District, Beijing 102249, PR China
| | - Lu Chen
- State Key Laboratory of Heavy Oil Processing, Basic Research Center for Energy Interdisciplinary, College of Science, China University of Petroleum, Beijing, 18 Fuxue Road, Changping District, Beijing 102249, PR China
| | - Yue Li
- State Key Laboratory of Heavy Oil Processing, Basic Research Center for Energy Interdisciplinary, College of Science, China University of Petroleum, Beijing, 18 Fuxue Road, Changping District, Beijing 102249, PR China
| | - Min Tang
- State Key Laboratory of Heavy Oil Processing, Basic Research Center for Energy Interdisciplinary, College of Science, China University of Petroleum, Beijing, 18 Fuxue Road, Changping District, Beijing 102249, PR China
| | - Qunyue Pei
- State Key Laboratory of Heavy Oil Processing, Basic Research Center for Energy Interdisciplinary, College of Science, China University of Petroleum, Beijing, 18 Fuxue Road, Changping District, Beijing 102249, PR China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing, Basic Research Center for Energy Interdisciplinary, College of Science, China University of Petroleum, Beijing, 18 Fuxue Road, Changping District, Beijing 102249, PR China.
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Yu L, Wu P, Tian T, He X, Fan M, Cui L. Crystalline/amorphous composite interface of CoP@Ni/Fe-P as a boosted electrocatalyst for full water splitting. Dalton Trans 2023; 52:11941-11948. [PMID: 37575068 DOI: 10.1039/d3dt01745a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Heterojunction materials have become good candidates for electrocatalysts thanks to their unique physicochemical merits. Herein, a crystalline-amorphous CoP@Ni/Fe-P heterojunction is constructed for whole water splitting. Originating from the strong electronic reaction at the amorphous-crystal interfaces, the electron density of Co, Ni, Fe and P is adjusted, which will optimize the adsorption and desorption energy of intermediates for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) and lower the kinetic barrier. The CoP@Ni/Fe-P heterojunction displays overpotentials of 125 and 250 mV to drive a current density of 10 mA cm-2 in 1 M KOH. In addition, the whole water splitting performance requires a cell voltage of 1.56 V to deliver 10 mA cm-2 and shows good stability. This work provides a way to design and prepare transition-metal-based materials with good electrocatalytic activity by constructing a crystalline and amorphous heterojunction.
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Affiliation(s)
- Lijuan Yu
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China.
| | - Peilin Wu
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China.
| | - Tenghui Tian
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China.
| | - Xingquan He
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China.
| | - Meihong Fan
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China.
| | - Lili Cui
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China.
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Zhang Y, Gao F, Wang D, Li Z, Wang X, Wang C, Zhang K, Du Y. Amorphous/Crystalline Heterostructure Transition-Metal-based Catalysts for High-Performance Water Splitting. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Recent Development of Nanostructured Nickel Metal-Based Electrocatalysts for Hydrogen Evolution Reaction: A Review. Top Catal 2022. [DOI: 10.1007/s11244-022-01706-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2022]
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