Nanoscale tungsten nitride/nitrogen-doped carbon as an efficient non-noble metal catalyst for hydrogen and oxygen recombination at room temperature in nickel–iron batteries |
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| Authors: | Lanxiang Huang Jun Yang Wanhai Zhou Kun Liu Ding Zhu Yungui Chen |
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| Affiliation: | College of Materials Science and Engineering, Sichuan University, Chengdu 610065 P. R. China.; Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610065 P. R. China, |
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| Abstract: | A nanoscale tungsten nitride/nitrogen-doped carbon (WN/NC) catalyst was synthesized through a facile route, and it exhibited efficient catalytic performance for hydrogen and oxygen recombination at room temperature with an average catalytic velocity of 140 μmol h−1 gcat−1 and long catalytic life of 954 660 s without decay in the catalytic performance. With the WN/NC catalyst, a nickel–iron battery could be sealed and maintenance-free, and it also exhibited low cost; thus, the nickel–iron battery can be used for large-scale energy storage systems in rural/remote areas.A nickel–iron battery with nanoscale WN/NC catalyst can be used for large-scale energy storage systems in rural/remote areas. |
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