Performance of Direct Methanol Fuel Cells with Sputter‐Deposited Anode Catalyst Layers
Performance of Direct Methanol Fuel Cells with Sputter‐Deposited Anode Catalyst Layers
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具有溅射沉积阳极催化剂层的直接甲醇燃料电池的性能
DOI：
10.1149/1.1391190
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发表时间：
1999
影响因子：
--
通讯作者：
S. Narayanan
中科院分区：
文献类型：
--
作者：
C. Witham;W. Chun;T. Valdez;S. Narayanan
研究了直接甲醇燃料电池的性能。采用X射线衍射、能量色散X射线分析、卢瑟福背散射光谱和X射线光电子能谱对薄膜催化剂层进行了表征。不同的催化剂负载和膜电极组件（MEA）的制造工艺进行了测试。在90°C下达到的最大功率密度为100 mW/cm 2，并且在仅0.03 mg/cm 2的负载下达到几乎75 mW/cm 2。结果表明，在260至380 mA/cm 2的电流密度下，可以实现至少2300 mW/mg的催化剂利用率。直接甲醇燃料电池技术的商业化是特别有吸引力的应用程序的膜电极组件的制造的沉积方法。© 2000电化学学会。S1099-0062（00）06-042-9。All rights reserved.
Performance of direct methanol fuel cells with sputter-deposited Pt-Ru anodes was investigated. The thin film catalyst layers w ere characterized using X-ray diffraction, energy dispersive X-ray analysis, Rutherford backscattering spectroscopy, and X-ray photoelectron spectroscopy. Different catalyst loadings and membrane electrode assembly (MEA) fabrication processes were tested. The maximum power density achieved at 90°C was 100 mW/cm 2, and almost 75 mW/cm 2 was attained with a loading of only 0.03 mg/cm2. The results demonstrate that a catalyst utilization of at least 2300 mW/mg can be achieved at current densities ranging from 260 to 380 mA/cm2. The application of the sputter-deposition method for MEA fabrication is particularly attractive for commercialization of direct methanol fuel cell technology. © 2000 The Electrochemical Society. S1099-0062(00)06-042-9. All rights reserved.