Zn doped ZIF67-derived porous carbon framework as efficient bifunctional electrocatalyst for water splitting |
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| Affiliation: | 1. State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China;2. Chinese Academy of Inspection and Quarantine (CAIQ), No. A 3, Gaobeidian Road, Chaoyang District, Beijing 100123, PR China;1. School of Material Science and Engineering, University of Jinan, Jinan, PR China;2. Fuels and Energy Technology Institute and Western Australia School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, WA6845, Australia;1. Chemistry Institute for Synthesis and Green Application, School of Materials Science and Chemical Engineering, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China;2. College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, PR China;1. School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China;2. School of Chemical Engineering and Resource Recycling, Wuzhou University, Wuzhou, 543002, PR China;1. Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China;2. Institute of Engineering Biology and Health, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China;1. Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Shengli Road No. 666, Urumqi, 830046, China;2. Key Laboratory of Advanced Functional Materials, Autonomous Region, Institute of Applied Chemistry, Xinjiang University, Shengli Road No. 666, Urumqi, 830046, China;3. Physics and Chemistry Detecting Center, Xinjiang University, Shengli Road No. 666, Urumqi, 830046, China;1. College of Electronic Engineering, Nanjing Xiaozhuang University, Nanjing 210017, China;2. Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for Nano Technology, Nanjing University, Nanjing 210093, China |
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| Abstract: | The electrochemical splitting of water is considered to be an efficient and potential technique for producing clean hydrogen and oxygen. Although, there are lots of significant developments in composite of superior hydrogen evolution reaction (HER) or oxygen evolution reaction (OER) catalyst applied in water splitting currently, designing non-precious and low-cost bifunctional electrocatalysts with high performance is still an attractive challenging issue. In this article, we report a novel bifunctional electrocatalyst with cobalt-based nanoparticles (NPs) embedded in Zn-doped hierarchical porous three-dimension N-doped carbonization structure via an annealing process of metal organic frameworks (MOFs) connected by N-doped carbon nanotube (denoted as Co–Zn/PNC). This composite structure possesses the characteristics of more active sites, numerous mesopores and high conductivity. The resulting electrocatalyst (Co–Zn/PNC) can be used as both anode and cathode to roust the overall water splitting, getting a current density of 10 mA cm−2 at a cell voltage of 1.63 V in 1.0 M KOH electrolyte. |
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| Keywords: | Bifunctional electrocatalyst Metal organic frameworks N-doped carbon nanotube Cobalt-based nanoparticles (NPs) |
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