Ultra-stable colloidal porous Pt-Au-Ag nanoparticles

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• 作者：Ming Zhao ; ^{ming815zhao@163.com} ; Ning Zhong ; Yuan Ji
• 关键词：Platinum ; Gold ; Nanoparticles ; Porous materials ; Interfaces ; Selective etching
• 刊名：Materials Letters
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：191
• 期：Complete
• 页码：38-41
• 全文大小：1269 K
• 卷排序：191

文摘

Pt-Au-Ag porous NPs were fabricated by selective removal of Ag from Pt-Au-Ag alloy. The porous NPs were formed with a particle size of 10 nm and a ligament size of 2 nm. The porous NPs are ultrastable and keep monodisperse in organic solvent for 100 days. Neither aggregations nor changes in light absorbance occurred to the porous NPs.