Novel cathodal diffusion layer with mesoporous carbon for the passive direct methanol fuel cell

被引：25
作者：
Cao, Jianyu [1 ]
Wang, Liangduo [1 ]
Song, Lingzheng [1 ,2 ]
Xu, Juan [1 ]
Wang, Hongning [1 ]
Chen, Zhidong [1 ]
Huang, Qinghong [2 ]
Yang, Hui [2 ]
机构：
[1] Changzhou Univ, Sch Petrochem Engn, Changzhou 213164, Peoples R China
[2] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2014年 / 118卷
基金：
中国国家自然科学基金;
关键词：
Mesoporous carbon; Mass transfer; Cathodal diffusion layer; Membrane electrode assembly; Direct methanol fuel cell; CATALYST LAYER; PERFORMANCE; MEMBRANE; DMFC; MEA; ARCHITECTURE; CROSSOVER;
D O I：
10.1016/j.electacta.2013.11.140
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A new cathodal diffusion layer (CDL) that utilizes mesoporous carbons (MCs) is fabricated and evaluated for the passive direct methanol fuel cell (DMFC). Experimental results reveal that the CDL with MCs (MC-CDL) can accelerate oxygen transport and promote the back diffusion of water from cathode to anode, leading to an increasing power density and enhanced discharge stability. The passive DMFC utilizing such an MC-CDL yields a specific energy of ca. 946 Wh kg(-1) at 25 degrees C, which is 2.3 times higher than that of the theoretical specific energy of lithium-ion batteries (similar to 410 Wh kg(-1), LiCoO2/graphite). (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：163 / 168
页数：6
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