Effect of the Anode Structure on the Stability of a Direct Methanol Fuel Cell

被引：15
|
作者：
Jing, Fenning [1 ]
Sun, Ruili [1 ,2 ]
Wang, Suli [1 ]
Sun, Hai [1 ]
Sun, Gongquan [1 ]
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
ENERGY & FUELS | 2020年 / 34卷 / 03期
基金：
中国国家自然科学基金;
关键词：
PLATINUM DISSOLUTION; PERFORMANCE DEGRADATION; DURABILITY; MEMBRANE; LIFETIME; DMFC; DEPENDENCE; CORROSION; CROSSOVER; CATALYST;
D O I：
10.1021/acs.energyfuels.9b03923
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The stability of a direct methanol fuel cell (DMFC) was investigated by two single DMFCs with different anode structure membrane electrode assembly (MEA) under discharging at the constant current model for more than 4000 h. One of the MEAs with a catalyst coating membrane (CCM) anode electrode loads 5.5 mg cm(-2) anode catalyst of Ru black loading, and the other with a gas diffusion layer coating (GDE) anode electrode loads 5.5 mg cm(-2) of 60% PtRu/C. During the stability testing, DMFC with a CCM anode structure with a noble metal loading (5.5 mg cm(-2)) showed a 22% performance loss and that of GDE anode structure with a lower noble metal loading (3.3 mg cm(-2)) was 17%. Polarization curves, electrochemical measurements, and EDX (energy dispersive X-ray spectroscopy) were performed to analyze the difference of catalyst activity, internal resistance, and Ru loss between two DMFCs.
引用
收藏
页码：3850 / 3857
页数：8
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