双金属片
催化作用
铂金
甲醇
氧还原
氧还原反应
碳纤维
材料科学
纳米颗粒
氮气
电催化剂
过渡金属
无机化学
化学
化学工程
纳米技术
电极
电化学
有机化学
物理化学
复合材料
工程类
复合数
作者
Li−Li Ling,Wu‐Jun Liu,Siqin Chen,Xiao Hu,Hong Jiang
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2018-06-19
卷期号:1 (7): 3331-3338
被引量:53
标识
DOI:10.1021/acsanm.8b00533
摘要
Platinum (Pt) based materials are widely used in electrocatalytic oxygen reduction reaction (ORR) with excellent catalytic activity, but its low abundance and expensive nature impede the broaden application. Alloying Pt with 3d transition metals is a good choice to reduce the Pt content but not decrease its ORR activity. Herein, a nitrogen-doped carbon stabilized Pt–Co bimetallic nanoparticles (Pt–Co/NC) with very low Pt content (0.51 wt %) was facilely synthesized through a metal–organic framwork (MOF) templated approach. The as-synthesized Pt–Co/NC shows favorable ORR catalytic activity with 0.87 V of half-wave potential, higher than many benchmark 20% Pt/C and a lot of previouely reported Pt containing ORR catalysts with high Pt content. Particularly, unlike conventional Pt based ORR catalysts, the Pt–Co/NC presents favorable methanol tolerance. This work provides a new method to prepare cost-effective and multifunctional catalysts using N-containing MOF template.
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