Copper-Modified Covalent Triazine Frameworks as Non-Noble-Metal Electrocatalysts for Oxygen Reduction

被引：238
作者：
Iwase, Kazuyuki [1 ]
Yoshioka, Tatsuro [1 ]
Nakanishi, Shuji [1 ]
Hashimoto, Kazuhito [1 ]
Kamiya, Kazuhide [1 ,2 ]
机构：
[1] Univ Tokyo, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan
[2] Japan Sci & Technol Agcy JST PRESTO, Kawaguchi, Saitama 3320012, Japan
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 38期
基金：
日本科学技术振兴机构;
关键词：
copper; electrocatalysis; fuel cells; nanostructures; oxygen reduction; CATALYTIC-ACTIVITY; CU COMPLEXES; PLATINUM; OXIDATION; NANOPARTICLES; COORDINATION; ALLOYS; O-2;
D O I：
10.1002/anie.201503637
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The electrochemical oxygen reduction reaction (ORR) is an important cathode reaction of various types of fuel cells. The development of electrocatalysts composed only of abundant elements is a key goal because currently only platinum is a suitable catalyst for ORR. Herein, we synthesized copper-modified covalent triazine frameworks (CTF) hybridized with carbon nanoparticles (Cu-CTF/CPs) as efficient electrocatalysts for the ORR in neutral solutions. The ORR onset potential of the synthesized Cu-CTF/CP was 810 mV versus the reversible hydrogen electrode (RHE; pH 7), the highest reported value at neutral pH for synthetic Cu-based electrocatalysts. Cu-CTF/CP also displayed higher stability than a Cu-based molecular complex at neutral pH during the ORR, a property that was likely as a result of the covalently cross-linked structure of CTF. This work may provide a new platform for the synthesis of durable non-noble-metal electrocatalysts for various target reactions.
引用
收藏
页码：11068 / 11072
页数：5
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