Structural Modulation of Co Catalyzed Carbon Nanotubes with Cu-Co Bimetal Active Center to Inspire Oxygen Reduction Reaction
Structural Modulation of Co Catalyzed Carbon Nanotubes with Cu-Co Bimetal Active Center to Inspire Oxygen Reduction Reaction
复制标题
Cu-Co双金属活性中心对钴催化碳纳米管的结构调控激发氧还原反应
DOI：
10.1021/acsami.8b18496
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发表时间：
2019
影响因子：
9.5
通讯作者：
Wu Mingbo
中科院分区：
文献类型：
--
作者：
Li Zhongtao;Yang Tiantian;Zhao Weinan;Xu Tao;Wei Liangqin;Feng Jianze;Yang Xiujie;Ren Hao;Wu Mingbo
Rational design of highly efficient catalyst for ORR is critical for development of advanced air cathode in Zn–air cells and fuel cells. To optimize the ORR performance of Co based cathode, the structure of carbon nanotube from DCI-Co precursor could be controlled through modulate synthetic parameters. The optimized ORR catalyst Co@NCNT-700 exhibit larger BET area, higher content of Co–Nxand graphitic N, which performance could be improved in further through Cu doping. The experiment data approved that the activity of Co–Nxwas enhanced by the synergistic effect with introduced Cu. Furthermore, the high-performance zinc-air batteries was fabricated with the bimetal catalyst CuCo@NCNT-700 as an air electrode. The high open-cycle potential (1.54 V) and peak power density (0.275 W.cm–2at 0.474 A.cm–2) were achieved, which would be potentially used to develop next generation energy conversion devices.
