Reduced Graphene Oxide and Its Modifications as Catalyst Supports and Catalyst Layer Modifiers for PEMFC

Materials

Xing Wei¹  VladimirN. Fateev²  Mikhail Yu. Presnyakov²  NataliaA. Ivanova²  ValeryN. Kalinichenko²  IrinaV. Pushkareva³  SergeyA. Grigoriev³  ArtemS. Pushkarev³ 

[1] Changchun Institute of Applied Chemistry CAS, Renmin str., 5625, Changchun 130002, China;National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova sq., Moscow 123182, Russia;National Research University “Moscow Power Engineering Institute”, 14, Krasnokazarmennaya st., Moscow 111250, Russia;

关键词: PEM fuel cell;    electrocatalyst;    reduced graphene oxide;    RGO doping;    platinum;   

DOI  :  10.3390/ma11081405

来源: DOAJ

【 摘 要 】

Reduced graphene oxide (RGO) and RGO modified by ozone (RGO-O) and fluorine (RGO-F) were synthesized. Pt nanoparticles were deposited on these materials and also on Vulcan XC-72 using the polyol method. The structural and electrochemical properties of the obtained catalysts were investigated in a model glass three-electrode electrochemical cell and in a laboratory PEM fuel cell. Among the RGO-based catalysts, the highest electrochemically active surface area (EASA) was obtained for the oxidized RGO supported catalyst. The EASA of the fluorine-modified RGO-supported catalyst was half as big. In the PEM fuel cell the performance of RGO-based catalysts did not exceed the activity of Vulcan XC-72-based catalysts. However, the addition of an RGO-O-based catalyst to Vulcan XC-72-based catalyst (in contrast to the RGO-F-based catalyst) allowed us to increase the catalyst layer activity and PEM fuel cell performance. Possible reasons for such an effect are discussed.

【 授权许可】

Unknown