CO_2 is one of the most important ＂renewable＂ carbon sources.To transform CO_2 to useful organic compounds,we examined the reactivity of two model silicon-based ＂waste＂ materials,disilanes and metallic Si powder,a...CO_2 is one of the most important ＂renewable＂ carbon sources.To transform CO_2 to useful organic compounds,we examined the reactivity of two model silicon-based ＂waste＂ materials,disilanes and metallic Si powder,as reducing agents.In these reactions,fluoride salts were found to be active catalysts：CO_2 was converted to formic acid at atmospheric pressure in the presence of H_2O as a proton source and the silicon-based reducing reagents.Based on in-situ NMR and kinetics analyses,a hydrosilane and penta-coordinate Si species are proposed as the reaction intermediate and active species,respectively.展开更多
基金supported by JSPS KAKENHI(15H04182)JSPS Grant-in-Aid for Scientific Research on Innovative Areas "3D Active-Site Science(26105003)","Precisely Designed Catalysts with Customized Scaffolding(16H01010)"Grant for Challenging Research Award,Tokyo Institute of Technology
文摘CO_2 is one of the most important ＂renewable＂ carbon sources.To transform CO_2 to useful organic compounds,we examined the reactivity of two model silicon-based ＂waste＂ materials,disilanes and metallic Si powder,as reducing agents.In these reactions,fluoride salts were found to be active catalysts：CO_2 was converted to formic acid at atmospheric pressure in the presence of H_2O as a proton source and the silicon-based reducing reagents.Based on in-situ NMR and kinetics analyses,a hydrosilane and penta-coordinate Si species are proposed as the reaction intermediate and active species,respectively.
