New solid polymer electrolyte composites for water electrolysis
New solid polymer electrolyte composites for water electrolysis
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DOI：
10.1007/bf01062295
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发表时间：
1989-03
影响因子：
2.9
通讯作者：
P. Millet;M. Pineri;R. Durand
中科院分区：
文献类型：
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作者：
P. Millet;M. Pineri;R. Durand
提出了一种制备固相萃取-电催化剂复合材料的新工艺。在这个过程中，贵金属阳离子物种在固体聚合物电解质中被化学还原。金属颗粒在SPE厚度上的分布并不均匀，但主要分布在其表面附近。用扫描电子探针分析和透射电子显微镜研究了析出物的结构和沿膜厚的分布。用Nafion膜和铂族电催化剂对固相萃取水进行了电解。用这种新工艺制备的SPE-电催化剂复合材料具有良好的电化学性能、低催化剂负载量、长时间稳定性和高能量效率。
A new procedure for the preparation of SPE-electrocatalyst composites has been developed. In this procedure, noble metal cationic species are chemically reduced within a solid polymer electrolyte. The metallic particles are not homogeneously distributed across the SPE thickness but predominate near its surfaces. The structure and the distribution of the precipitates, along the membrane thickness have been investigated by scanning electron microprobe analysis and transmission electron microscopy. Application to SPE water electrolysis has been performed using Nafion membranes and platinum-group electrocatalysts. The SPE-electrocatalyst composites prepared according to this new procedure present good electrochemical properties, low catalyst loadings, long-time stability and high energetic efficiencies.