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Qian Z, Chen Y, Tang Z, Liu Z, Wang X, Tian Y, Gao W. Hollow Nanocages of Ni xCo 1-xSe for Efficient Zinc-Air Batteries and Overall Water Splitting. NANO-MICRO LETTERS 2019; 11:28. [PMID: 34137966 PMCID: PMC7770759 DOI: 10.1007/s40820-019-0258-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 03/06/2019] [Indexed: 05/05/2023]
Abstract
Developing Earth-abundant, highly efficient, and anti-corrosion electrocatalysts to boost the oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and hydrogen evolution reaction (HER) for the Zn-air battery (ZAB) and for overall water splitting is imperative. In this study, a novel process starting with Cu2O cubes was developed to fabricate hollow NixCo1-xSe nanocages as trifunctional electrocatalysts for the OER, ORR, and HER and a reasonable formation mechanism was proposed. The Ni0.2Co0.8Se nanocages exhibited higher OER activity than its counterparts with the low overpotential of 280 mV at 10 mA cm-2. It also outperformed the other samples in the HER test with a low overpotential of 73 mV at 10 mA cm-2. As an air-cathode of a self-assembled rechargeable ZAB, it exhibited good performance, such as an ultralong cycling lifetime of > 50 h, a high round-trip efficiency of 60.86%, and a high power density of 223.5 mW cm-2. For the application in self-made all-solid-state ZAB, it also demonstrated excellent performance with a power density of 41.03 mW cm-2 and an open-circuit voltage of 1.428 V. In addition, Ni0.2Co0.8Se nanocages had superior performance in a practical overall water splitting, in which only 1.592 V was needed to achieve a current density of 10 mA cm-2. These results show that hollow NixCo1-xSe nanocages with an optimized Ni-to-Co ratio are a promising cost-effective and high-efficiency electrocatalyst for ZABs and overall water splitting in alkaline solutions.
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Affiliation(s)
- Zhengxin Qian
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Yinghuan Chen
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Zhenghua Tang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, 510006, Guangdong, People's Republic of China.
- Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy Materials, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, Guangdong, People's Republic of China.
| | - Zhen Liu
- Department of Physics and Engineering, Frostburg State University, Frostburg, MD, 21532-2303, USA
| | - Xiufang Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Yong Tian
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China.
| | - Wei Gao
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China.
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Recent Advances of Cobalt-Based Electrocatalysts for Oxygen Electrode Reactions and Hydrogen Evolution Reaction. Catalysts 2018. [DOI: 10.3390/catal8110559] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
This review summarizes recent progress in the development of cobalt-based catalytic centers as the most potentially useful alternatives to noble metal-based electrocatalysts (Pt-, Ir-, and Ru-based) towards the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) in acid and alkaline media. A series of cobalt-based high-performance electrocatalysts have been designed and synthesized including cobalt oxides/chalcogenides, Co–Nx/C, Co-layered double hydroxides (LDH), and Co–metal-organic frameworks (MOFs). The strategies of controllable synthesis, the structural properties, ligand effect, defects, oxygen vacancies, and support materials are thoroughly discussed as a function of the electrocatalytic performance of cobalt-based electrocatalysts. Finally, prospects for the design of novel, efficient cobalt-based materials, for large-scale application and opportunities, are encouraged.
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Shao M, Chang Q, Dodelet JP, Chenitz R. Recent Advances in Electrocatalysts for Oxygen Reduction Reaction. Chem Rev 2016; 116:3594-657. [DOI: 10.1021/acs.chemrev.5b00462] [Citation(s) in RCA: 2698] [Impact Index Per Article: 337.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Minhua Shao
- Department
of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Qiaowan Chang
- Department
of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Jean-Pol Dodelet
- INRS-Énergie, Matériaux et Télécommunications, 1650, boulevard Lionel Boulet, Varennes, Quebec J3X 1S2, Canada
| | - Regis Chenitz
- INRS-Énergie, Matériaux et Télécommunications, 1650, boulevard Lionel Boulet, Varennes, Quebec J3X 1S2, Canada
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ZHANG H, CAO C, ZHAO J, LIN R, MA J. Recent Development of Pt-Based Core-Shell Structured Electrocatalysts in Fuel Cells. CHINESE JOURNAL OF CATALYSIS 2013. [DOI: 10.3724/sp.j.1088.2012.10947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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