Supported bimetallic AuPd clusters using activated Au25 clusters
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- 作者：Kee Eun Leea ; b ; Atal Shivharea ; Yongfeng Hub ; Robert W.J. Scotta ; robert.scott@usask.ca" class="auth_mail" title="E-mail the corresponding author
- 关键词：Au clusters ; Bimetallic catalysts ; AuPd catalysts ; Alcohol oxidation ; X-ray absorption spectroscopy
- 刊名：Catalysis Today
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：280
- 期：part_P2
- 页码：259-265
- 全文大小：3583 K
文摘
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Au25(SR)18 clusters used as a precursor to make Au-Pd core-shell nanoparticles.
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Activation of the clusters by both thermal calcination and chemical reduction of thiols.
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3:1 AuPd catalysts have highest TON and selectivity for crotyl alcohol oxidation.
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XANES results show correlation between Pd 4d vacancies and catalytic activity.
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LiBH4 reduction of thiols from clusters followed by Pd deposition gave best catalysts.