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

页码：1739 / 1749

页数：11

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