Vapor phase deoxygenation of heptanoic acid over silica-supported palladium and palladium-tin catalysts

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• 作者：Nicholas Kaylor^a ; Jiahan Xie^a ; Yong-Su Kim^b ; Hien N. Pham^c ; Abhaya K. Datye^c ; Yong-Kul Lee^b ; Robert J. Davis^a ; ^{rjd4f@virginia.edu}
• 关键词：Pd ; Sn ; Bimetallic heterogeneous catalysts ; Physical mixture ; Deoxygenation ; Carboxylic acids ; Migration
• 刊名：Journal of Catalysis
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：344
• 期：Complete
• 页码：202-212
• 全文大小：3055 K
• 卷排序：344

文摘

Initial decarbonylation rate is inversely correlated to Pd catalyst stability. Adding Sn to a Pd/SiO2 catalyst promotes the stable conversion of heptanoic acid. Dehydration and decarbonylation are the primary reactions over PdSn/SiO2. Sn migrates to Pd when contacted by vapor-phase heptanoic acid. Partially-reduced SnOx is the promoting species associated with Pd in PdSn catalysts.