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Cu Nanoparticles Embedded in N‐Doped Carbon Materials for Oxygen Reduction Reaction
Chinese Journal of Chemistry ( IF 5.5 ) Pub Date : 2020-05-25 , DOI: 10.1002/cjoc.202000073
Xudong Wen 1 , Hui Qi 2 , Yan Cheng 2 , Qiaoqiao Zhang 1 , Changmin Hou 3 , Jingqi Guan 1
Affiliation  

Development of eco‐friendly, cost‐effective, and high‐performance electrocatalysts to replace precious metal platinum for oxygen reduction reaction (ORR) has received increasing attention. Herein, we adopt a facile one‐pot strategy to embed Cu nanoparticles onto N‐doped carbon‐graphene (Cu@NC‐700). The Cu@NC‐700 exhibits robust and efficient ORR catalysis with positive half‐wave potential (~0.86 V vs. RHE) and low Tafel slope (33.9 mV∙dec–1) in 0.1 M KOH solution. Meanwhile, it manifests remarkable electrochemical stability, and strong tolerance to methanol crossover and carbon monoxide poisoning. The synergistic effect between Cu‐N‐C sites, Cu nanoparticles, and N‐doped carbon support speeds up ORR electrocatalysis.

中文翻译:

嵌入N掺杂碳材料中的Cu纳米粒子用于氧还原反应

替代氧的贵金属铂用于氧还原反应(ORR)的环保,经济高效的高性能电催化剂的开发受到越来越多的关注。在这里,我们采用一种简便的单罐策略将Cu纳米颗粒嵌入到N掺杂碳石墨烯(Cu @ NC-700)上。Cu @ NC-700在0.1 M KOH溶液中表现出强而有效的ORR催化,具有正半波电势(〜RHE约为0.86 V)和低Tafel斜率(33.9 mV∙dec –1)。同时,它表现出卓越的电化学稳定性,并且对甲醇穿透和一氧化碳中毒具有很强的耐受性。Cu-N-C位点,Cu纳米颗粒和N掺杂碳载体之间的协同效应可加快ORR电催化作用。
更新日期:2020-05-25
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