由M_(0.02)Cu_(0.4)Mg_(5.6)Al_(1.98)(OH)_(16)CO_3(M=Ru,Re)水滑石为前驱体制备的双金属固体碱催化甘油氢解(英文)  

Trivalent metal ions M^(3+) in M_(0.02)Cu_(0.4)Mg_(5.6)Al_(1.98)(OH)_(16)CO_3 layered double hydroxide as catalyst precursors for the hydrogenolysis of glycerol

作　　者：夏水鑫[1] 郑丽萍[1] 聂仁峰[1] 陈平[1] 楼辉[1] 侯昭胤[1] 

机构地区：[1]浙江大学化学系催化研究所,浙江杭州310028

出　　处：《催化学报》2013年第5期986-992,共7页

基　　金：supported by the National Natural Science Foundation of China(21273198,21075139);Zhejiang Provincial Natural Science Foundation(LZ12B03001)~~

摘　　要：采用共沉淀法合成了M0.02Cu0.4Mg5.6Al1.98(OH)16CO3(M=Ru,Re)水滑石前驱体,然后经焙烧和还原制备了铜分散度较高的双功能M-Cu/固体碱催化剂.这些双功能催化剂在粗甘油氢解制备丙二醇反应中表现出了很好的催化活性.表征结果证明,M的加入增强了催化剂表面氢的吸附和活化,进而促进了甘油的转化.Trivalent metal ions M3+ in M0.02Cu0.4Mg5.6Al1.98(OH)16CO3(M=Ru,Re) layered double hydroxides (LDHs) were successfully synthesized by coprecipitation. Bimetallic M-Cu/solid base catalysts with high metal dispersion were obtained after calcination and H2 reduction of these LDH precursors. These catalysts exhibited excellent performances for the hydrogenolysis of biomass-derived glycer-ol under mild conditions. The catalysts were stable when recycled five times. Characterizations indicated that the addition of Ru or Re enhanced the adsorption and activation of hydrogen on the surface of catalysts, which contributed to the high conversion of glycerol.

关 键 词：水滑石 双金属 固体碱 甘油 氢解 丙二醇 

分 类 号：O643.32[理学—物理化学]