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Liu Y, Ding M, Qin Y, Zhang B, Zhang Y, Huang J. Crystalline/Amorphous Mo-Ni(OH) 2/Fe xNi y(OH) 3x+2y hierarchical nanotubes as efficient electrocatalyst for overall water splitting. J Colloid Interface Sci 2024; 657:219-228. [PMID: 38039882 DOI: 10.1016/j.jcis.2023.11.151] [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: 09/21/2023] [Revised: 11/03/2023] [Accepted: 11/23/2023] [Indexed: 12/03/2023]
Abstract
The development of efficient bifunctional catalysts for overall water splitting is highly desirable and essential for the advancement of hydrogen technology. In this work, Mo-Ni(OH)2/FexNiy(OH)3x+2y with hierarchical nanotube structure is constructed on flexible carbon cloth (CC) through simple electrochemical deposition and hydrothermal method. The hollow tube-structure is in favor of both exposing active sites and enhancing mass transfer capability. Moreover, the doping of Mo can enhance the electronic conductivity of heterostructures. The interfacial interaction between amorphous and crystal can enhance effectively the charge transfer kinetics across the interface. Therefore, Mo-Ni(OH)2/FexNiy(OH)3x+2y can achieve a low overpotential of 57 mV for hydrogen evolution reaction (HER) and 229 mV for oxygen evolution reaction (OER) at 10 mA·cm-2. In addition, Mo-Ni(OH)2/FexNiy(OH)3x+2y needs a potential of only 1.54 V at 10 mA·cm-2 for overall water splitting, and retains for a long period of time (60 h) reliable. The work will provide a valuable approach to the construction of highly efficient electrocatalysts for overall water splitting.
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Affiliation(s)
- Yutong Liu
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan, 250022, People's Republic of China
| | - Meng Ding
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan, 250022, People's Republic of China.
| | - Yuan Qin
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan, 250022, People's Republic of China
| | - Baojie Zhang
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan, 250022, People's Republic of China
| | - Yafang Zhang
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan, 250022, People's Republic of China
| | - Jinzhao Huang
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan, 250022, People's Republic of China
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Chen S, Liu D, Zhou P, Qiao L, An K, Zhuo Y, Lu J, Liu Q, Ip WF, Wang Z, Pan H. Multi-metal electrocatalyst with crystalline/amorphous structure for enhanced alkaline water/seawater hydrogen evolution. J Colloid Interface Sci 2023; 650:807-815. [PMID: 37450969 DOI: 10.1016/j.jcis.2023.07.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/29/2023] [Accepted: 07/08/2023] [Indexed: 07/18/2023]
Abstract
The development of well-defined nanomaterials as non-noble metal electrocatalysts has broad application prospect for hydrogen generation technology. Recently, multi-metal electrocatalysts for hydrogen evolution reaction (HER) have attracted extensive attention due to their high catalytic performance arising from the synergistic effect of multi-metal interaction. However, most multi-metal catalysts suffer from the limited synergistic effect because of poor interfacial compatibility between different components. Here, a novel multi-metal catalyst (Ni/MoO2@CoFeOx) nanosheet with a crystalline/amorphous structure is demonstrated, which shows high HER activity. Ni/MoO2@CoFeOx exhibits an ultra-low overpotential of 18, 39, and 93 mV at 10 mA cm-2 in alkaline water, alkaline seawater and natural seawater, respectively, which outperformances most of the state-of-the-art non-noble metal compounds. In addition, the catalyst shows exceptional stability under 500 mA cm-2 in alkaline solution. In-situ Raman and other advanced structural characterization confirms the excellent catalytic activity is mainly contributed by: (1) the strong synergistic effect of multi-metal components provides multiple active sites in the catalytic process; (2) the crystalline/amorphous interface in Ni/MoO2@CoFeOx boosts the catalytically active sites and structure stability; (3) the crystalline phase enhances the intrinsic conductivity greatly; and (4) the amorphous phase provides abundant unsaturated sites for improved intrinsic catalytic activity. This work provides a feasible way to design electrocatalyst with high activity and stability for practical applications.
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Affiliation(s)
- Songbo Chen
- College of Materials Science and Engineering, Shenzhen University, Shenzhen 518071, China; College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; Institute of Applied Physics and Materials Engineering, University of Macau, Macao 999078, China
| | - Dong Liu
- College of Materials Science and Engineering, Shenzhen University, Shenzhen 518071, China.
| | - Pengfei Zhou
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao 999078, China
| | - Lulu Qiao
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao 999078, China
| | - Keyu An
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao 999078, China
| | - Yuling Zhuo
- College of Materials Science and Engineering, Shenzhen University, Shenzhen 518071, China; Institute of Applied Physics and Materials Engineering, University of Macau, Macao 999078, China
| | - Jianxi Lu
- College of Materials Science and Engineering, Shenzhen University, Shenzhen 518071, China
| | - Qizhen Liu
- College of Materials Science and Engineering, Shenzhen University, Shenzhen 518071, China
| | - Weng Fai Ip
- Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macao 999078, China.
| | - Zhenbo Wang
- College of Materials Science and Engineering, Shenzhen University, Shenzhen 518071, China.
| | - Hui Pan
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao 999078, China; Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macao 999078, China.
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Chen Y, Jiang T, Tian C, Zhan Y, Adabifiroozjaei E, Kempf A, Molina-Luna L, Hofmann JP, Riedel R, Yu Z. Molybdenum Phosphide Quantum Dots Encapsulated by P/N-Doped Carbon for Hydrogen Evolution Reaction in Acid and Alkaline Electrolytes. CHEMSUSCHEM 2023; 16:e202300479. [PMID: 37452791 DOI: 10.1002/cssc.202300479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 07/14/2023] [Accepted: 07/14/2023] [Indexed: 07/18/2023]
Abstract
A facile and eco-friendly strategy is presented for synthesizing novel nanocomposites, with MoP quantum dots (QDs) as cores and graphitic carbon as shells, these nanoparticles are dispersed in a nitrogen and phosphorus-doped porous carbon and carbon nanotubes (CNTs) substrates (MoP@NPC/CNT). The synthesis involves self-assembling reactions to form single-source precursors (SSPs), followed by pyrolysis at 900 °C in an inert atmosphere to obtain MoP@NPC/CNT-900. The presence of carbon layers on the MoP QDs effectively prevents particle aggregation, enhancing the utilization of active MoP species. The optimized sample, MoP@NPC/CNT-900, exhibits remarkable electrocatalytic activity and durability for the hydrogen evolution reaction (HER). It demonstrates a low overpotential of 155 mV at 10 mA cm-2 , a small Tafel slope of 76 mV dec-1 , and sustained performance over 20 hours in 0.5 M H2 SO4 . Furthermore, the catalyst shows excellent activity in 1 M KOH, with a relatively low overpotential of 131 mV and long-term durability under constant current input. The exceptional HER activity can be attributed to several factors: the superior performance of MoP QDs, the large surface area and good conductivity of the carbon substrates, and the synergistic effect between MoP and carbon species.
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Affiliation(s)
- Yongchao Chen
- Department of Materials and Earth Sciences, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Tianshu Jiang
- Department of Materials and Earth Sciences, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Chuanmu Tian
- Department of Materials and Earth Sciences, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Ying Zhan
- Department of Materials and Earth Sciences, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Esmaeil Adabifiroozjaei
- Department of Materials and Earth Sciences, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Alexander Kempf
- Department of Materials and Earth Sciences, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Leopoldo Molina-Luna
- Department of Materials and Earth Sciences, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Jan P Hofmann
- Department of Materials and Earth Sciences, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Ralf Riedel
- Department of Materials and Earth Sciences, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Zhaoju Yu
- College of Materials, Key Laboratory of High Performance Ceramic Fibers (Xiamen University), Ministry of Education, Xiamen, 361005, P. R. China
- College of Materials, Xiamen Key Laboratory of Electronic Ceramic Materials and Devices, Xiamen University, Xiamen, 361005, P. R. China
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Shen S, Wang Z, Lin Z, Song K, Zhang Q, Meng F, Gu L, Zhong W. Crystalline-Amorphous Interfaces Coupling of CoSe 2 /CoP with Optimized d-Band Center and Boosted Electrocatalytic Hydrogen Evolution. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110631. [PMID: 35040208 DOI: 10.1002/adma.202110631] [Citation(s) in RCA: 117] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Amorphous and heterojunction materials have been widely used in the field of electrocatalytic hydrogen evolution due to their unique physicochemical properties. However, the current used individual strategy still has limited effects. Hence efficient tailoring tactics with synergistic effect are highly desired. Herein, the authors have realized the deep optimization of catalytic activity by a constructing crystalline-amorphous CoSe2 /CoP heterojunction. Benefiting from the strong electronic coupling at the interfaces, the d-band center of the material moves further down compared to its crystalline-crystalline counterpart, optimizing the valence state and the H adsorption of Co and lowering the kinetic barrier of hydrogen evolution reaction (HER). The heterojunction shows an overpotential of 65 mV to drive a current density of 10 mA cm-2 in the acidic medium. Besides, it also shows competitive properties in both neutral and basic media. This work provides inspiration for optimizing the catalytic activity through combining a crystalline and amorphous heterojunction, which can be implemented for other transition metal compound electrocatalysts.
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Affiliation(s)
- Shijie Shen
- Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Zongpeng Wang
- Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Zhiping Lin
- Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Kai Song
- Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Qinghua Zhang
- Institution of Physics, Chinese Academic of Science, No. 8, 3rd South Street, Zhongguancun, Haidian District, Beijing, 100190, China
| | - Fanqi Meng
- Institution of Physics, Chinese Academic of Science, No. 8, 3rd South Street, Zhongguancun, Haidian District, Beijing, 100190, China
| | - Lin Gu
- Institution of Physics, Chinese Academic of Science, No. 8, 3rd South Street, Zhongguancun, Haidian District, Beijing, 100190, China
| | - Wenwu Zhong
- Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Jiaojiang, Zhejiang, 318000, China
- School of Material Science and Hydrogen Energy, Foshan Institute of Technology, No. 18, Jiangwanyi Road, Foshan, 528000, China
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Chen H, Qiao S, Yang J, Du X. NiMo/NiCo2O4 as synergy catalyst supported on nickel foam for efficient overall water splitting. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2021.112086] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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