In Situ Loading of Cu_(2)O Nanoparticles on a Hydroxyl Group Rich TiO_(2) Precursor as an Excellent Catalyst for the Ullmann Reaction  

作　　者：Fang Niu Yan Jiang Weiguo Song 

机构地区：[1]Beijing National Laboratory for Molecular Sciences(BNLMS) [2]Laboratory for Molecular Nanostructures and Nanotechnology,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China [3]The Graduate University of the Chinese Academy of Sciences,Yuquanlu,Beijing,100049,China

出　　处：《Nano Research》2010年第11期757-763,共7页纳米研究（英文版）

基　　金：We gratefully thank the National Natural Science Foundation of China(NSFC)(Nos.50725207,20873156,and 20821003);the National Basic Research Program of China(MOST)(Nos.2007CB-936400 and 2009CB930400);the Chinese Academy of Sciences for financial supports.

摘　　要：An in situ method has been used to load Cu_(2)O nanoparticles on the surface of a hydroxyl group rich TiO_(2)precursor.Cu_(2)O nanoparticles are formed by in situ reduction of Cu(OH)_(2) with Sn^(2+)ions linked to the surface of the TiO_(2)precursor.The initial Cu_(2)O nanoparticles serve as seeds for subsequent particle growth.The resulting Cu_(2)O nanoparticles are evenly dispersed on the surface of the TiO_(2)precursor,and are heat and air stable.The as-prepared composite is an excellent catalyst for Ullmann type cross coupling reactions of aryl halides with phenol.The composite catalyst also showed good stability,remaining highly active after five consecutive runs.

关 键 词：Cuprous oxide in situ composite structure titania precursor Ullmann type cross coupling 

分 类 号：O62[理学—有机化学]