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CeO2@NiCo2O4 nanowire arrays on carbon textiles as high performance cathode for Li-O2 batteries 被引量:2
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作者 Zhen-Dong Yang Zhi-Wen Chang +2 位作者 Ji-Jing Xu Xiao-Yang Yang Xin-Bo Zhang 《Science China Chemistry》 SCIE EI CAS CSCD 2017年第12期1540-1545,共6页
The successful development of Li-O_2 battery technology depends on developing a stable and efficient cathode. As an important step toward this goal, for the first time, we report the development of CeO_2 nanoparticles... The successful development of Li-O_2 battery technology depends on developing a stable and efficient cathode. As an important step toward this goal, for the first time, we report the development of CeO_2 nanoparticles modified NiCo_2O_4 nanowire arrays(NWAs) grown on the carbon textiles as a new carbon-free and binder-free cathode system. In this study, the Li-O_2 battery with the CeO_2@NiCo_2O_4 NWAs has exhibited much reduced overpotentials, a high discharge capacity, an improved cycling stability,outperforming the Li-O_2 battery with NiCo_2O_4 NWAs. These improvements can be attributed to both the tailored morphology of discharge product and improved oxygen reduction reaction(ORR) and oxygen evolution reaction(OER) activity after CeO_2 NPs deposition. To a considerable extent, this idea of cathode construction including structure design and composition optimization can provide guidance for further researches in developing more powerful cathode for Li-O_2 battery. 展开更多
关键词 Li-O2 battery efficient cathode design CeO2 nanoparticles NiCo2O4 nanowire arrays improved electrochemical performances
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