Gold nano-particle formation from crystalline AuCN: Comparison of thermal, plasma- and ion-beam activated decomposition

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• 作者：Mih&aacute ; ly T. Beck ; Imre Bertó ; ti ; ^{bertoti.imre@ttk.mta.hu} ; Mikló ; s Mohai ; Pé ; ter Né ; meth ; Emma Jakab ; L&aacute ; szló ; Szabó ; J&aacute ; nos Szé ; pvö ; lgyi
• 关键词：Gold nanoparticles ; AuCN ; Plasma activation ; Paracyanogen ; XPS ; TEM
• 刊名：Journal of Solid State Chemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：246
• 期：Complete
• 页码：65-74
• 全文大小：2372 K
• 卷排序：246

文摘

AuCN decomposes between 400 and 700 °C with evolution of gaseous (CN)2. Epitaxial relationship is established between Au and parent AuCN crystals. Ar plasma treatment results in similar phase transition than the thermal treatment. Plasma and ion-beam activation offer alternative way for preparing Au nanocrystals. Reaction mechanisms of Au particle formation at the three treatments are proposed.