材料科学
电催化剂
氧还原反应
催化作用
退火(玻璃)
钴
析氧
化学工程
兴奋剂
无机化学
碳纤维
氧气
硼化物
冶金
光电子学
复合材料
电化学
物理化学
有机化学
电极
化学
复合数
工程类
作者
Vishal Jose,Jean Marie Vianney Nsanzimana,Huimin Hu,Jin‐Ho Choi,Xin Wang,Jong‐Min Lee
标识
DOI:10.1002/aenm.202100157
摘要
Abstract Compositional and structural engineering of metal‐metalloid materials can boost their electrocatalytic performance. Herein, a highly efficient and stable electrocatalytic system for the oxygen reduction reaction is obtained by creating heterointerfaces between N‐doped carbon and cobalt boride nanosheets. Furthermore, a detailed investigation on the effect of annealing temperature as well as the amount of carbon and nitrogen sources is conducted to tune their performance. The best electrocatalyst among the prepared materials is found to have an onset potential of 1.05 V and half‐wave potential of 0.94 V, which are 40 and 72 mV positive in comparison to commercial Pt/C, respectively. Finally, a zinc–air battery is also assembled using the catalyst.
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