过电位
电催化剂
钴
双功能
催化作用
电池(电)
材料科学
钼
化学工程
碳纤维
碳化物
纳米技术
无机化学
化学
电化学
电极
冶金
复合材料
复合数
物理化学
有机化学
功率(物理)
物理
量子力学
工程类
作者
Yanqiang Li,Hui-Cheng Wang,Hai An,Xuan Liu,Siru Chen,Xue‐Zhi Song
出处
期刊:Dalton Transactions
[The Royal Society of Chemistry]
日期:2023-01-01
卷期号:52 (19): 6254-6259
被引量:5
摘要
Nano bowl-like Co-Co6Mo6C2 coated by N,P co-doped carbon (Co-Co6Mo6C2@NPC) is reported as an electrocatalyst for Zn-air batteries. Co-Co6Mo6C2@NPC only needs an overpotential of 210 mV at 10 mA cm-2 for the OER, and the half-wave potential for the ORR is 0.81 V. In addition, the Co-Co6Mo6C2@NPC based battery shows a large open-circuit voltage of 1.335 V and a maximum power density of 160.5 mW cm-2, as well as good stability. The improved catalytic performance can be ascribed to the co-existence of Co6Mo6C2 and Co species to improve the intrinsic catalytic activity, and the bowl-like nanostructure to facilitate the mass transfer.
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