Single-site zinc on silica catalysts for propylene hydrogenation and propane dehydrogenation: Synthesis and reactivity evaluation using an integrated atomic layer deposition-catalysis instrument

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• 作者：Jeffrey Camacho-Bunquin^a ; Payoli Aich^a ; ^b ; Magali Ferrandon^a ; Andrew &ldquo ; Bean&rdquo ; Getsoian^a ; Ujjal Das^a ; Fulya Dogan^a ; Larry A. Curtiss^a ; Jeffrey T. Miller^a ; ^c ; Christopher L. Marshall^a ; Adam S. Hock^a ; ^d ; ^{ahock@iit.edu} ; Peter C. Stair^a ; ^e
• 关键词：Hydrogenation ; Dehydrogenation ; Atomic layer deposition ; Zinc
• 刊名：Journal of Catalysis
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：345
• 期：Complete
• 页码：170-182
• 全文大小：2133 K
• 卷排序：345

文摘

Synthesis of isolated Zn(II) alkyl sites on SiO2 via atomic layer deposition. Single-site nature of Zn(II) alkyl sites was confirmed by spectroscopic measurements (e.g., XAS). Open-shell, tricoordinate ethyl-Zn(II) sites exhibit higher activity. High Zn(II) dispersion produces Zn/SiO2 catalysts with improved activity and stability.