Regulating adsorption performance of zeolites by pre-activation in electric fields.

ABSTRACT: While multiple external stimuli (e.g., temperature, light, pressure) have been reported to regulate gas adsorption, limited studies have been conducted on controlling molecular admission in nanopores through the application of electric fields (E-field). Here we show gas adsorption capacity and selectivity in zeolite molecular sieves can be regulated by an external E-field. Through E-field pre-activation during degassing, several zeolites exhibited enhanced CO₂ adsorption and decreased CH₄ and N₂ adsorptions, improving the CO₂/CH₄ and CO₂/N₂ separation selectivity by at least 25%. The enhanced separation performance of the zeolites pre-activated by E-field was maintained in multiple adsorption/desorption cycles. Po

SUBMITTER: Chen K 

PROVIDER: S-EPMC10482906 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature