Electrochemical activity and durability of platinum nanoparticles supported on ordered mesoporous carbons for oxygen reduction reaction
Electrochemical activity and durability of platinum nanoparticles supported on ordered mesoporous carbons for oxygen reduction reaction
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DOI：
10.1016/j.ijhydene.2009.12.183
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发表时间：
2010-08
影响因子：
7.2
通讯作者：
Shou‐Heng Liu;C. Chiang;M. Wu;Shang-Bin Liu
中科院分区：
文献类型：
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作者：
Shou‐Heng Liu;C. Chiang;M. Wu;Shang-Bin Liu
报道了一种基于有机-有机自组装(One-POT)方法合成有序介孔碳(PtOMC)中铂纳米颗粒(NPs)的方法。结果表明，该催化剂具有较高的比表面积、较高的活性中心和较好的电催化性能，可作为氢氧燃料电池的阴极催化剂。铂-OMC电催化剂的催化活性和耐久性的提高归功于铂催化剂与介孔碳之间的相互作用增强，有效地阻止了铂纳米粒子在碳载体上的迁移和/或团聚。
A facile procedure for synthesizing platinum nanoparticles (NPs) studded in ordered mesoporous carbons (Pt–OMCs) based on the organic–organic self-assembly (one-pot) approach is reported. These Pt–OMCs, which can be easily fabricated with controllable Pt loading, were found to possess high surface areas, highly accessible and stable active sites and superior electrocatalytic properties pertinent as cathode catalysts for hydrogen–oxygen fuel cells. The enhanced catalytic activity and durability observed for the Pt–OMC electrocatalysts are attributed to the strengthened interactions between the Pt catalyst and the mesoporous carbon that effectively precludes migration and/or agglomeration of Pt NPs on the carbon support.