From All-Triazine C3N3 Framework to Nitrogen-Doped Carbon Nanotubes: Efficient and Durable Trifunctional Electrocatalysts

被引：57

作者：

Zeng, Jian ^{[1
]}

Chen, Zhongxin ^{[1
]}

Zhao, Xiaoxu ^{[1
]}

Yu, Wei ^{[1
]}

Wu, Shaofei ^{[1
]}

Lu, Jiong ^{[1
]}

Loh, Kian Ping ^{[1
]}

Wu, Jishan ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem, 3 Sci Dr 3, Singapore 117543, Singapore

来源：

ACS APPLIED NANO MATERIALS | 2019年 / 2卷 / 12期

关键词：

nitrogen-doped carbon nanotube; covalent triazine framework; oxygen reduction reaction; oxygen evolution reaction; hydrogen evolution reaction; OXYGEN REDUCTION REACTION; HYDROGEN EVOLUTION; GRAPHITIC LAYERS; ACTIVE-SITES; NITRIDE; GRAPHENE; PHOTOCATALYSTS; NANOPARTICLES; CARBIDE; NETWORKS;

D O I：

10.1021/acsanm.9b02011

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new all-triazine C3N3 framework was synthesized via triflic acid-mediated polymerization of 2,4,6-tricyano-1,3,5-triazine in solution, followed by ionothermal treatment in ZnCl2. Complexation of C3N3 with FeCl3, followed by reduction, gave the Fe3O4/C3N3 composite. Subsequent pyrolysis of the composite afforded the iron-species-encapsulated, nitrogen-doped carbon nanotubes, which turned out to be efficient and durable trifunctional electrocatalysts. The optimized catalyst showed a half-wave potential of the oxygen reduction reaction similar to that of platinum/carbon and higher oxygen evolution reaction activity than IrO2. The catalyst also exhibits good hydrogen evolution reaction activity.

引用

页码：7969 / 7977

页数：17

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