Corrosion Study of Mesoporous Carbon Supports for Use in PEM Fuel Cells

被引：9
|
作者：
Forouzandeh, Farisa [1 ]
Banham, Dustin W. [1 ,3 ]
Feng, Fangxia [1 ]
Li, Xiaoan [2 ]
Ye, Siyu [3 ]
Birss, Viola [1 ]
机构：
[1] Univ Calgary, Dept Chem, Calgary, AB T2N 1N4, Canada
[2] Univ Calgary, Dept Mech Engn, Calgary, AB T2N 1N4, Canada
[3] Ballard Power Syst, Burnaby, BC V5J 5J8, Canada
来源：
POLYMER ELECTROLYTE FUEL CELLS 13 (PEFC 13) | 2013年 / 58卷 / 01期
关键词：
CATALYST SUPPORT; ELECTROCHEMICAL DURABILITY; DEGRADATION MECHANISM; NANOTUBES; ELECTROCATALYSTS; PRECURSORS; ELECTRODES; STABILITY; OXIDATION; PLATINUM;
D O I：
10.1149/05801.1739ecst
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this study, the corrosion resistance of two ordered, high surface area, mesoporous carbons (OMCs) were evaluated for PEM fuel cell applications, in comparison with microporous Vulcan carbon (VC). Using a hexagonal mesoporous silica as a hard template, the OMCs were synthesized using sucrose and anthracene as the carbon precursors, denoted as OMC-S and OMC-A, respectively. The corrosion testing protocol involved a potential cycling-step sequence between 1.4 V for 50 s and 0.8 V for 10 s, for a total of 18 cycles, all in room temperature 0.5 M H2SO4. The corrosion resistance of the carbons is found to be VC > OMC-A > OMC-S, which correlates with their degree of graphitization, as determined by X-ray diffraction and thermogravimetric analysis.
引用
收藏
页码：1739 / 1749
页数：11
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