质子交换膜燃料电池催化层的有效质子电导率
Effective proton conductivity of catalyst layers in proton exchange membrane fuel cells作者机构：哈尔滨工业大学应用化学系黑龙江哈尔滨150001
出 版 物：《化工学报》 (CIESC Journal)
年 卷 期：2005年第56卷第6期
页 面：1102-1105页
核心收录：
学科分类：0808[工学-电气工程] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学]
主 题：质子交换膜燃料电池 催化层 质子电导率 自由堆积球 数学模拟
摘 要：A numerical model was presented to predict the specific proton conductivity of the catalyst layer in Proton Exchange Membrane Fuel Cells (PEMFC).This model was derived from the random packed spheres with simple cubic, body-centered cubic and face-centered cubic *** effects of sphere radius r_s, bulk proton conductivity k_b, contact parameter γ and contact angle α on proton transfer within a homogeneous agglomerate sphere consisting of carbon-supported catalyst and electrolyte were analyzed.A correlation equation of specific proton conductivity was obtained by data *** real effective proton conductivity in the catalyst layer was measured by addition to a standard Membrane Electrolyte Assembly of an inactive composite layer in the electrolyte path between the anode and cathode. The model was validated by good agreement between calculations and measured data.
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