Carbon dioxide and hydrogen adsorption study on surface-modified HKUST-1 with diamine/triamine.

ABSTRACT: The present article intended to study the influence of post-synthetic modification with ethylenediamine (en, diamine) and diethylenetriamine (deta, triamine) within the coordinatively unsaturated sites (CUSs) of HKUST-1 on carbon dioxide and hydrogen storage. The as-sythesized adsorbent was solvent-exchanged and subsequently post-synthetically modified with di-/triamines as sources of amine-based sorption sites due to the increased CO₂ storage capacity. It is known that carbon dioxide molecules have a high affinity for amine groups, and moreover, the volume of amine molecules itself reduces the free pore volume in HKUST-1, which is the driving force for increasing the hydrogen storage capacity. Different concentrations of amines were used for modification of HKUST-1, through whi

SUBMITTER: Zelenka T 

PROVIDER: S-EPMC9574841 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature