Carbon dioxide adsorption and conversion to methane and ethane on hydrogen boride sheets.

ABSTRACT: Hydrogen boride (HB) sheets are metal-free two-dimensional materials comprising boron and hydrogen in a 1:1 stoichiometric ratio. In spite of the several advancements, the fundamental interactions between HB sheets and discrete molecules remain unclear. Here, we report the adsorption of CO₂ and its conversion to CH₄ and C₂H₆ using hydrogen-deficient HB sheets. Although fresh HB sheets did not adsorb CO₂, hydrogen-deficient HB sheets reproducibly physisorbed CO₂ at 297 K. The adsorption followed the Langmuir model with a saturation coverage of 2.4 × 10^-4 mol g^-1 and a heat of adsorption of approximately 20 kJ mol^-1, which was supported by density functional theory calculations. When heated in

SUBMITTER: Goto T 

PROVIDER: S-EPMC9814476 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature