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Citation: Ken Motokura, Masaki Naijo, Sho Yamaguchi, Akimitsu Miyaji, Toshihide Baba. Reductive transformation of CO₂: Fluoride-catalyzed reactions with waste silicon-based reducing agents[J]. Chinese Journal of Catalysis, ;2017, 38(3): 434-439. doi: 10.1016/S1872-2067(17)62800-6 shu

Reductive transformation of CO₂: Fluoride-catalyzed reactions with waste silicon-based reducing agents

Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8502, Japan

Received Date: 27 September 2016
Revised Date: 20 October 2016

Fund Project: This work was 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)”, and Grant for Challenging Research Award, Tokyo Institute of Technology.

CO₂ is one of the most important “renewable” carbon sources. To transform CO₂ 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: CO₂ was converted to formic acid at atmospheric pressure in the presence of H₂O 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.
- Carbon dioxide,
- Fluoride,
- Homogeneous catalysis,
- Formic acid,
- Disilane
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Reductive transformation of CO2: Fluoride-catalyzed reactions with waste silicon-based reducing agents

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Reductive transformation of CO₂: Fluoride-catalyzed reactions with waste silicon-based reducing agents