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Nitrogen-doped carbon nanotubes as air cathode catalysts in zinc-air battery
被引:109
|作者:
Zhu, Shaomin
[1
,2
]
Chen, Zhu
[1
]
Li, Bing
[1
]
Higgins, Drew
[1
]
Wang, Haijiang
[3
]
Li, Hui
[3
]
Chen, Zhongwei
[1
]
机构:
[1] Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada
[2] Dalian Jiaotong Univ, Coll Environm & Chem Engn, Dalian 116028, Peoples R China
[3] Natl Res Council Canada, Inst Fuel Cell Innovat, Vancouver, BC V6T 1W5, Canada
关键词:
Nitrogen-doped carbon nanotubes;
Oxygen reduction reaction;
Air cathode;
Catalysts;
Zinc-air batteries;
OXYGEN REDUCTION REACTION;
MEMBRANE FUEL-CELLS;
PLATINUM NANOPARTICLES;
ALKALINE-SOLUTION;
ELECTRODE;
ELECTROCATALYSTS;
NANOSTRUCTURES;
PERFORMANCE;
IMPEDANCE;
D O I:
10.1016/j.electacta.2011.03.082
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
Nitrogen-doped carbon nanotubes (N-CNTs) derived from ethylenediamine precursor have been used as air cathode catalyst for zinc-air batteries (ZABs) in half cell and single cell. Investigation of N-CNTs employed a rotating disc electrode system revealed excellent catalytic activity towards oxygen reduction reaction (ORR) in alkaline electrolyte. The influence of alkaline electrolyte concentration on single cell performance of ZABs has also been explored. The highest cell performance was achieved at an electrolyte concentration of 6 M KOH, which resulted in a maximum cell power density of 69.5 mW cm(-2). (C) 2011 Elsevier Ltd. All rights reserved.
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页码:5080 / 5084
页数:5
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