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首页> 外文期刊>Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry >Cathodes for fuel cells using proton-conducting Li2SO4-Al2O3 electrolyte
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Cathodes for fuel cells using proton-conducting Li2SO4-Al2O3 electrolyte

机译：使用质子传导性Li2SO4-Al2O3电解质的燃料电池阴极

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The performances of three widely different cathode materials (Pt, strontium-doped lanthanum manganite (LSM), and NiO) have been compared for use with proton conducting Li2SO4-Al2O3 composite electrolyte, using H2S-air and H-2-air fuel cells operating at 600 degreesC. Surface analysis and electrochemical techniques were used to characterize fresh and used electrode materials. Pt or LSM cathodes each became covered with Li2SO4 and Al2O3 and, as a consequence, the fuel cells showed poor performance. In contrast, the NiO cathode catalyst did not become covered with Li2SO4 and good fuel cell performance was achieved. Exceptionally good current densities of over 100 mA/cm(2) and power densities of over 30 mW/cm(2) were obtained for H2S-air fuel cells having Mo-Ni-S anode catalysts. Slight agglomeration of NiO particles during fuel cell operation had only a minor effect on performance. (C) 2004 Elsevier B.V. All rights reserved.
机译：通过使用H2S空气和H-2-空气燃料电池，比较了三种质子不同的阴极材料（Pt，锶掺杂的镧锰矿（LSM）和NiO）与质子传导Li2SO4-Al2O3复合电解质一起使用的性能。在600摄氏度。表面分析和电化学技术用于表征新旧电极材料。 Pt或LSM阴极分别被Li2SO4和Al2O3覆盖，因此，燃料电池的性能较差。相反，NiO阴极催化剂没有被Li2SO4覆盖，并获得了良好的燃料电池性能。对于具有Mo-Ni-S阳极催化剂的H2S空气燃料电池，获得了超过100 mA / cm（2）的超乎寻常的良好电流密度和超过30 mW / cm（2）的功率密度。 NiO颗粒在燃料电池运行过程中的轻微团聚对性能的影响很小。 （C）2004 Elsevier B.V.保留所有权利。

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