An efficient carbon catalyst supports with mesoporous graphene-like morphology

被引：3

作者：

Liu, Dandan ^{[1
]}

Zhang, Jiaxi ^{[1
]}

Zhang, Cheng ^{[2
]}

Lv, Mengyuan ^{[1
]}

Zhang, Xiaona ^{[1
]}

Song, Huiyu ^{[1
]}

Du, Li ^{[1
,3
]}

Xue, Min ^{[3
]}

机构：

[1] South China Univ Technol, Sch Chem & Chem Engn, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China

[2] Guangdong Environm Monitoring Ctr, Guangzhou 510640, Guangdong, Peoples R China

[3] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA

来源：

JOURNAL OF POROUS MATERIALS | 2018年 / 25卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Carbon support; Mesoporous carbon sheets; Graphene-like; N-doped; Ru loaded; OXYGEN REDUCTION REACTION; NITROGEN-DOPED CARBON; METAL-FREE; NANOTUBE ARRAYS; FUEL-CELLS; ELECTROCATALYST; OXIDATION; GRAPHITE; OXIDE;

D O I：

10.1007/s10934-017-0503-1

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this work, we report the synthesis of ordered mesoporous carbon sheets (OMCS) with graphene-like morphology and their applications as the support for electrocatalysts. This lamellar material exhibits uniform mesoporous channels and ease of modification by using different nitrogen sources, such as melamine, urea, and ammonia. Nitrogen-doping on this material leads to a high specific surface area of 761 m(2) g(-1) and uniform pores with a diameter of 9 nm. Electrochemical tests show that the N-doped OMCS possesses high catalytic activities on the oxygen reduction reaction, which can be attributed to the pyridinic-type and pyrrolic-type nitrogen activating nearby carbon atoms. In addition, we demonstrate that the unique physical structure and surface chemical properties of OMCS improve the dispersion and structure of supported metal Ru nanoparticles, which lead to enhance oxygen evolution reaction activity.

引用

页码：913 / 921

页数：9

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