Metal-Carbon Composite Catalysts by One-Step Conversion of MOF Crystals in a Sealed-Tube Reactor

被引：3
作者：
Hinokimoto, Akira [1 ]
Lee, Jet-Sing M. [2 ]
Izu, Hitoshi [3 ]
Chen, Liyu [3 ]
Tsujimoto, Masahiko [4 ]
Horike, Satoshi [1 ,2 ,3 ,5 ]
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Synthet Chem & Biol Chem, Kyoto 6158510, Japan
[2] Kyoto Univ, Inst Integrated Cell Mat Sci, Inst Adv Study, Kyoto 6068501, Japan
[3] Natl Inst Adv Ind Sci & Technol, AIST Kyoto Univ Chem Energy Mat Open Innovat Lab, Kyoto 6068501, Japan
[4] Kyoto Univ, Inst Integrated Cell Mat Sci, Inst Adv Study, Kyoto 6068501, Japan
[5] Vidyasirimedhi Inst Sci & Technol, Dept Mat Sci & Engn, Sch Mol Sci & Engn, Rayong 21210, Thailand
来源：
ACS APPLIED ENERGY MATERIALS | 2020年 / 3卷 / 12期
关键词：
oxygen reduction reaction; electrochemical catalysis; zeolitic imidazolate frameworks; sealed-tube reactor; carbon-metal composite; cobalt;
D O I：
10.1021/acsaem.0c02208
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
There is a demand for non-precious-metal-carbon composites for use as oxygen reduction reaction (ORR) catalysts. Herein, we report the use of a sealed-tube reactor system to prepare carbon composites from metal-organic framework (MOF) precursors and to optimize its BET surface area, electric conductivity, and metal/nitrogen distribution, which all contribute to ORR performance. [Co(2-methylimidazolate)(2)](n) (ZIF-67) was sealed in a quartz tube and calcined to fabricate a cobalt-carbon composite. The optimized catalyst showed excellent ORR properties that are comparable to those of the Pt/C benchmark (electron-transport number, 3.95; current density = 33.2 mA cm(-2)).
引用
收藏
页码：11529 / 11533
页数：5
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