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Chuang CH, Kang PH, Lai YY, Hou CH, Tseng WC, Huang YJ, Fang MH, Shyue JJ, Kaun CC, Cheng YJ. Highly Active NiO-Ni(OH) 2 -Cr 2 O 3 /Ni Hydrogen Evolution Electrocatalyst through Synergistic Reaction Kinetics. CHEMSUSCHEM 2023; 16:e202300820. [PMID: 37421638 DOI: 10.1002/cssc.202300820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/10/2023]
Abstract
High activity catalysts for hydrogen evolution reaction (HER) play a key role in converting renewable electricity to storable hydrogen fuel. Great effort has been devoted to the search for noble metal free catalysts to make electrolysis viable for practical applications. Here, a non-precious metal oxide/metal catalyst with high intrinsic activity comparable to Pt/C was reported. The electrocatalyst consisting of NiO, Ni(OH)2 , Cr2 O3 , and Ni metal exhibits a low overpotential of 27, 103, and 153 mV at current densities of 10, 100, and 200 mA cm-2 , respectively, in a 1.0 m NaOH electrolyte. The activity is much higher than that of NiOx /Ni or Cr2 O3 alone, showing the synergistic effect of NiOx /Ni and Cr2 O3 on catalyzing HER. Density functional theory calculations shows that NiO and Cr2 O3 on Ni surface lower the disassociation energy barrier for breaking H-OH bond, while Ni(OH)2 and Cr2 O3 create preferred sites on Ni surface with near-zero H* adsorption free energy to promote H* to gaseous H2 evolution. These synergistic effects of multiple-oxides/metal composition enhance the disassociation of H-OH and the evolution of H* to gaseous H2 , thus achieving high activity and demonstrating a promising composition design for noble metal free catalyst.
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Affiliation(s)
- Chi-Huang Chuang
- Research Center for Applied Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Nankang, Taipei, 115, Taiwan
| | - Pei-Hao Kang
- Research Center for Applied Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Nankang, Taipei, 115, Taiwan
| | - Yung-Yu Lai
- Research Center for Applied Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Nankang, Taipei, 115, Taiwan
| | - Cheng-Hung Hou
- Research Center for Applied Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Nankang, Taipei, 115, Taiwan
| | - Wei-Che Tseng
- Department of Materials Science and Engineering, National Cheng Kung University, No.1, University Road, Tainan, 701, Taiwan
| | - Yan-Jia Huang
- Department of Materials Science and Engineering, National Cheng Kung University, No.1, University Road, Tainan, 701, Taiwan
| | - Mu-Huai Fang
- Research Center for Applied Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Nankang, Taipei, 115, Taiwan
| | - Jing-Jong Shyue
- Research Center for Applied Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Nankang, Taipei, 115, Taiwan
| | - Chao-Cheng Kaun
- Research Center for Applied Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Nankang, Taipei, 115, Taiwan
| | - Yuh-Jen Cheng
- Research Center for Applied Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Nankang, Taipei, 115, Taiwan
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Li J, Du X, Luo Y, Han B, Liu G, Li J. MoS2/NiVFe crystalline/amorphous heterostructure induced electronic modulation for efficient neutral-alkaline hydrogen evolution. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141478] [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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Gowrisankar A, Thangavelu S. a‐MnO2 sensitized SrCO3‐Sr(OH)2 supported on two dimensional carbon composites as stable electrode material for asymmetric supercapacitor and for oxygen evolution catalysis. ChemElectroChem 2022. [DOI: 10.1002/celc.202200213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Selvaraju Thangavelu
- Bharathiar University Chemistry Department of ChemistryBharathiar University 641046 Coimbatore INDIA
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