Enhanced activity and durability of Pt nanoparticles supported on reduced graphene oxide for oxygen reduction catalysts of proton exchange membrane fuel cells

被引：22

作者：

Kim, Jemin ^{[1
]}

Kim, Sun-, I ^{[2
]}

Jo, Seung Geun ^{[1
]}

Hong, Na Eun ^{[2
]}

Ye, Bora ^{[2
]}

Lee, Sangkyu ^{[3
]}

Dow, Hwan Soo ^{[4
]}

Lee, Duck Hyun ^{[2
]}

Lee, Jung Woo ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Mat Sci & Engn, Busan 46241, South Korea

[2] Korea Inst Ind Technol, Green Mat & Proc Grp, Ulsan 44413, South Korea

[3] Hanyang Univ, Dept Mat Sci & Engn, Seoul 04763, South Korea

[4] Korea Inst Ceram Engn & Technol, Convergence R&D Div, Jinju 52851, South Korea

来源：

CATALYSIS TODAY | 2020年 / 352卷

基金：

新加坡国家研究基金会;

关键词：

Pt supported catalyst; Carbon black; Reduced graphene oxide; Oxygen reduction reaction; Proton exchange membrane fuel cells; CARBON SUPPORT; PT/C CATALYSTS; PLATINUM; PERFORMANCE; DEGRADATION; BLACK;

D O I：

10.1016/j.cattod.2019.11.016

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Proton exchange membrane fuel cells (PEMFCs) are mainly used as a power source of hydrogen fuel cell vehicles. Also, their catalytic activity and durability of oxygen reduction reaction are important because they operate at high voltage and strongly acidic conditions. In this research, we studied the characteristics of the Pt nanoparticles (NPs) supported on the graphene oxide (GO), partially reduced graphene oxide (GO-r), and reduced graphene oxide (rGO) to investigate the enhancement of the activity and durability of oxygen reduction catalysts for PEMFCs. Pt catalysts supported on carbonaceous materials were synthesized through a facile polyol method, and the characteristics of the synthesized catalysts were analyzed with transmission electron microscopy, X-ray diffraction, thermogravimetric analysis, X-ray photoelectron spectroscopy, linear sweep voltammetry, cyclic voltammetry, electrochemical impedance spectroscopy, and Raman spectroscopy. The outcomes demonstrated that the rGO was superior to the carbon black support in oxygen reduction activity and long-term durability. Here, the reduced concentration of oxygen related functional groups on the graphene support was the key factor to enhance the oxygen reduction properties and long-term durability of the Pt/rGO catalyst.

引用

页码：10 / 17

页数：8

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