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ÌâÄ¿Au¨CPd alloy nanoparticle catalyzed selective oxidation of benzyl alcohol and tandem synthesis of imines at ambient conditions ×÷ÕßWenjing Cui, Qi Xiao, Sarina Sarina ÆäËûCatalysis Today, Volume 235, 15 October 2014, Pages 152-159 |
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https://apps.webofknowledge.com/ ... age=1&doc=1 Au-Pd alloy nanoparticle catalyzed selective oxidation of benzyl alcohol and tandem synthesis of imines at ambient conditions ×÷Õß:Cui, WJ (Cui, Wenjiang)[ 1,2 ] ; Xiao, Q (Xiao, Qi)[ 3 ] ; Sarina, S (Sarina, Sarina)[ 3 ] ; Ao, WL (Ao, Wulan)[ 1 ] ; Xie, MX (Xie, Mengxia)[ 4 ] ; Zhu, HY (Zhu, Huaiyong)[ 3 ] ; Bao, Z (Bao, Zhaorigetu)[ 1 ] CATALYSIS TODAY ¾í: 235 Ò³: 152-159 DOI: 10.1016/j.cattod.2014.04.015 ³ö°æÄê: OCT 15 2014 ²é¿´ÆÚ¿¯ÐÅÏ¢ CATALYSIS TODAY ³ö°æÉÌ ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS ISSN: 0920-5861 eISSN: 1873-4308 Ñо¿ÁìÓò Chemistry Engineering ÕªÒª Alloy nanoparticles (NPs) of gold and palladium on ZrO2 support (Au-Pd@ZrO2) were found to be highly active in oxidation of benzyl alcohols and can be used for the tandem synthesis of imines from benzyl alcohols and amines via a one-pot, two-step process at mild reaction conditions. The first step of the process is oxidation of benzyl alcohol to benzaldehyde, excellent yields were achieved after 7 h reaction at 40 degrees C without addition of any base. In the second step, aniline was introduced into the reaction system to produced N-benzylideneaniline. The benzaldehyde obtained in the first step was completely consumed within 1 h. A range of benzyl alcohols and amines were investigated for the general applicability of the Au-Pd alloy catalysts. It is found that the performance of the catalysts depends on the Au-Pd metal contents and composition. The optimal catalyst is 3.0 wt% Au-Pd@ZrO2 with a Au d molar ratio 1:1. The alloy NP catalyst exhibited superior catalytic properties to pure AuNP or PdNP because the surface of alloy NPs has higher charge heterogeneity than that of pure metal NPs according to simulation of density function theory (DFT). (C) 2014 Elsevier B.V. All rights reserved.¹Ø¼ü´Ê ×÷Õ߹ؼü´Ê:Tandem synthesis; Gold and palladium alloy nanoparticles; Benzyl alcohol; Amine; Imine KeyWords Plus:SUPPORTED GOLD NANOPARTICLES; SOLVENT-FREE OXIDATION; BIMETALLIC CATALYSTS; AEROBIC OXIDATION; MOLECULAR-OXYGEN; PALLADIUM; AMINES; MECHANISM; SIEVES ×÷ÕßÐÅÏ¢ ͨѶ×÷ÕßµØÖ·: Zhu, HY (ͨѶ×÷Õß) Queensland Univ Technol, Sch Chem Phys & Mech Engn, Brisbane, Qld 4001, Australia. ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Queensland University of Technology µØÖ·: [ 1 ] Inner Mongolia Normal Univ, Inner Mongolia Key Lab Green Catalysis, Hohhot 010022, Inner Mongolia, Peoples R China ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Inner Mongolia Normal University [ 2 ] Inner Mongolia Vocat Coll Chem Engn, Dept Chem Engn, Hohhot 010070, Inner Mongolia, Peoples R China [ 3 ] Queensland Univ Technol, Sch Chem Phys & Mech Engn, Brisbane, Qld 4001, Australia ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Queensland University of Technology [ 4 ] Beijing Normal Univ, Analyt Testing Ctr, Beijing 100875, Peoples R China ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Beijing Normal University µç×ÓÓʼþµØÖ·:hy.zhu@qut.edu.au; zrgt@imnu.edu.cn »ù½ð×ÊÖúÖÂл »ù½ð×ÊÖú»ú¹¹ ÊÚȨºÅ National Natural Science Foundation of China 20966008 Opening Project of Natural Science Foundation of Inner Mongolia 2010KF02 Australia Research Council ARC DP110104990 ²é¿´»ù½ð×ÊÖúÐÅÏ¢¹Ø±Õ»ù½ð×ÊÖúÐÅÏ¢ Financial supports from the National Natural Science Foundation of China (No. 20966008), Opening Project of Natural Science Foundation of Inner Mongolia (No. 2010KF02) and Australia Research Council (ARC DP110104990) are gratefully acknowledged. ³ö°æÉÌ ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS Àà±ð / ·ÖÀà Ñо¿·½Ïò:Chemistry; Engineering Web of Science Àà±ð:Chemistry, Applied; Chemistry, Physical; Engineering, Chemical ÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000340946200018 ISSN: 0920-5861 eISSN: 1873-4308 ÆäËûÐÅÏ¢ IDS ºÅ: AN9RP Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 42 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 2 JCR® Àà±ð JCR ·ÖÇø CHEMISTRY, APPLIED Q1 CHEMISTRY, PHYSICAL Q2 ENGINEERING, CHEMICAL Q1 Êý¾ÝÀ´×ÔµÚ 2013 °æ Journal Citation Reports® |
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d molar ratio 1:1. The alloy NP catalyst exhibited superior catalytic properties to pure AuNP or PdNP because the surface of alloy NPs has higher charge heterogeneity than that of pure metal NPs according to simulation of density function theory (DFT). (C) 2014 Elsevier B.V. All rights reserved.