Abstract
Glycerol carbonate,an important glycerol value-added product,has been widely used as an active intermediate and inert solvent in the synthesis of cosmetics,detergents,chemical intermediates,poly-mers,and so on.The direct carbonylation from glycerol with CO2 is considered a promising route,but still tough work due to the thermodynamic stability and the kinetic inertness of CO2.In this work,highly-selective direct carbonylation of glycerol and CO2 into glycerol carbonate has been achieved over highly dispersed MglnCe-mixed metal oxides(MglnCe-MMO),which were prepared through the topological transformation derived from the MglnCe-layered double hydroxides(MglnCe-LDHs).By precisely modulating the surface basic-acidic properties and the oxygen vacancies,an efficient carbonylation of glycerol with CO2 has been achieved with a selectivity of up to＞99％to glycerol carbonate.Deep investigation into the synergistic catalysis of base-acid sites and oxygen vacancies has been clarified.
基金项目
National Key Research and Development Program of China(2022YFB3805602)
National Natural Science Foundation of China(22138001)
National Natural Science Foundation of China(22288102)
Fundamental Research Funds for the Central Universities()
NETL
NSTL
万方数据