Cu3Pt1-Cu2O nanocomposites: synergistic effect-dependent high activity and stability for the gas-phase selective oxidation of alcohols

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作者: Liu, Kun Long, Houkun Wang, Guangyi Sun, Yongbin Hou, Chao Dong, Jian Cao, Xiaoqun

作者单位: Taishan Med Coll, Sch Chem & Pharmaceut Engn, Tai An 271016, Shandong, Peoples R China Yan Kuang Lu Nan Chem Co Ltd, Qingdao, Peoples R China

摘要: The catalyst Cu3Pt1-Cu2O/SiC was facilely prepared via the in situ reaction of the corresponding compounds supported on SiC in the reaction stream. Cu3Pt1-Cu2O/SiC exhibits excellent catalytic activity for the oxidation of alcohols . The reduction of active Cu2O to inactive Cu-0 is the cause behind the deactivation of Cu/SiC. For Cu3Pt1-Cu2O-7/SiC, a Cu2O-Cu3Pt1 alloy formed under the reaction conditions plays an important role in the reaction. Active 5 nm Cu2O nanoparticles are stabilized by th...更多; The catalyst Cu3Pt1-Cu2O/SiC was facilely prepared via the in situ reaction of the corresponding compounds supported on SiC in the reaction stream. Cu3Pt1-Cu2O/SiC exhibits excellent catalytic activity for the oxidation of alcohols . The reduction of active Cu2O to inactive Cu-0 is the cause behind the deactivation of Cu/SiC. For Cu3Pt1-Cu2O-7/SiC, a Cu2O-Cu3Pt1 alloy formed under the reaction conditions plays an important role in the reaction. Active 5 nm Cu2O nanoparticles are stabilized by the inactive Cu3Pt1 alloy, which was confirmed by control experiments, characterization results and a three-step experiment.收起

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