Instability of supported platinum nanoparticles in low-temperature fuel cells
Instability of supported platinum nanoparticles in low-temperature fuel cells
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DOI：
10.1007/s11244-007-9000-0
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发表时间：
2007-12-01
影响因子：
3.6
通讯作者：
Morgan, D.
中科院分区：
文献类型：
--
作者：
Shao-Horn, Y.;Sheng, W. C.;Morgan, D.
本文讨论了低温燃料电池中负载型铂电催化剂表面积损失的机理。有人认为，亚单层溶解的Pt纳米粒子在高电压下的表面积损失，通过增加从碳和粗化的Pt纳米粒子上的碳的Pt的损失。
This paper discusses the mechanisms of surface area loss of supported platinum (Pt) electrocatalysts in low-temperature fuel cells. It is argued that submonolayer dissolution of Pt nanoparticles governs the surface area loss at high voltages by increasing the loss of Pt from carbon and coarsening of Pt nanoparticles on carbon.