Title of article
Activities of Pt/Sibunit-1562 catalysts in the ORR in PEMFC: Effect of Pt content and Pt load at cathode
Author/Authors
Gribov، نويسنده , , Evgeniy N. and Zinovieva، نويسنده , , Anastasiya Yu. and Voropaev، نويسنده , , Ivan N. and Simonov، نويسنده , , Pavel A. and Romanenko، نويسنده , , Anatoliy V. and Okunev، نويسنده , , Aleksey G.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
10
From page
11894
To page
11903
Abstract
In this paper, a systematic investigation was carried out of activities at 80 °C of Pt supported on Sibunit-1562 graphitized carbon in the electroreduction of oxygen in the polymer electrolyte fuel cell. Pt content in the Pt/Sibunit-1562 catalysts was 20, 40, and 60 wt.% and Pt load at the cathode was varied in the 200–6.25 μgPt cm−2 interval. The results were compared with the activity of commercial 20 wt.% Pt/Vulcan XC-72 catalyst. To optimize the transport properties of the cathode layer and maintain its thickness upon using Pt/Sibunit −1562 catalysts with varied Pt content and Pt loads a definite amount of Vulcan-XC-72 carbon support was added to the cathode catalytic inks. Higher activity of Pt/Sibunit-1562 catalysts was found as compared to that of commercial 20 wt.% Pt/Vulcan XC-72 with similar particle size of the active component.
Keywords
ORR activity , ORR , PEMFC , Platinum , Sibunit , Fuel cells
Journal title
International Journal of Hydrogen Energy
Serial Year
2012
Journal title
International Journal of Hydrogen Energy
Record number
1672562
Link To Document