Carbon nanotubes based gas diffusion layers in direct methanol fuel cells
Carbon nanotubes based gas diffusion layers in direct methanol fuel cells
复制标题
直接甲醇燃料电池中基于碳纳米管的气体扩散层
DOI：
10.1016/j.energy.2009.11.031
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发表时间：
2010-03-01
期刊：
影响因子：
9
通讯作者：
Zhu, S.
中科院分区：
文献类型：
--
作者：
Gao, Y.;Sun, G. Q.;Zhu, S.
以碳纳米管、聚丙烯腈基碳纤维(PCF)和聚四氟乙烯(PTFE)为原料，通过烧结制备了直接甲醇燃料电池(DMFCS)用碳纳米管基气体扩散层(CNT-GDL)，完全取代了商用碳纸基气相扩散层(TORAY-GDL)。X射线衍射(XRD)、扫描电子显微镜(SEM)和压汞孔隙仪(MIP)测试结果表明，CNT-GDL具有较高的石墨化程度，1000-3000 nm孔径范围内孔洞丰富，传质能力强；电化学阻抗谱(EIS)测试结果表明，CNT-GDL电池的导电性和传质能力均优于Toray-GDL电池，使DMFC单电池的极限电流密度和峰值功率密度分别提高了40%和27%。皇冠版权所有(C)2009由爱思唯尔有限公司出版。保留所有权利。
A carbon nanotube based gas diffusion layer (CNT-GDL) for direct methanol fuel cells (DMFCS) was prepared by sintering the wet carbon paper made of CNT, polyacrylonitrile-based carbon fibre (PCF) and PTFE, completely replacing the commercial carbon paper based GDL (Toray-GDL). The results of X-ray diffraction (XRD), scanning electron microscope (SEM) and mercury intrusion porosimeter (MIP) showed that CNT-GDL is of higher graphitization degree, more abundant pores in the pore diameter range of 1000-3000 nm and better mass transfer ability, compared with those of Toray-GDL Electrochemical impedance spectroscopy (EIS) results display that the cell with CNT-GDL had better electrical conductivity and mass transfer ability than those of Toray-GDL As a result, the limiting current density and peak power density of DMFC single cell with CNT-GDL are improved by 40% and 27%, respectively. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.