One-Step Direct Fixation of Atmospheric CO₂ by Si-H Surface in Solution.

ABSTRACT: The efficient conversion of carbon dioxide (CO₂) into useful chemicals has important practical significance for environmental protection. Until now, direct fixation of atmospheric CO₂ needs first extraction from the atmosphere, an energy-intensive process. Silicon (or Si-H surface), Earth-abundant, low-cost and non-toxic, is a promising material for heterogeneous CO₂ chemical fixation. Here we report one-step fixing of CO₂ directly from the atmosphere to a paraformaldehyde-like polymer by Si-H surface at room temperature. With the assistance of HF, commercial silicon powder was used as a heterogeneous reducing agent, for converting gaseous CO₂ to a polymer of fluorine substituted polyoxymethylene and hydroxyl substituted polyoxymethyle

SUBMITTER: Fan Z 

PROVIDER: S-EPMC6957863 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature