Efficient selective activation of sorbitol C–O bonds over C–C bonds on CoGa(221)generated by lattice-induction strategy  

作　　者：Ying Kong Yanru Zhu Zhe An Jian Zhang Xin Shu Hongyan Song Qipeng Yuan Jing He 

机构地区：[1]State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing 100029,China

出　　处：《Nano Research》2023年第5期6200-6211,共12页纳米研究（英文版）

基　　金：the National Natural Science Foundation of China(No.22108009);the National Key R&D Program of China(No.2017YFA0206804)are gratefully acknowledged..

摘　　要：Sorbitol is a primary platform compound in the conversion of cellulose.The conversion of sorbitol to C_(6) hydrocarbons requires a complete cleavage of C–O bonds and meanwhile the inhibition of C–C cleavage.Here,we demonstrated an efficient selective cleavage of C–O over C–C bond on the(221)facet of supported CoGa.A selectivity of 94%to C_(6) hydrocarbon with conversion of 97%has been achieved.The selective C–O cleavage was demonstrated by tuning the exposed facet as(221)or(110).The supported CoGa was prepared simply by reduction of Co and Ga-containing layered double hydroxides(CoZnGaAl-LDHs),the exposed facets of CoGa crystallites were controlled by tailoring the temperature-programmed rate in the reduction.By reducing CoZnGaAl-LDHs,CoGa(221)was exposed with a temperature-programmed rate of 5℃/min under the induction of ZnO lattice,while CoGa(110)was exposed with a rate of 10℃/min.

关 键 词：biomass supported CoGa facet exposure preferred C–O activation liquid hydrocarbons 

分 类 号：O62[理学—有机化学]