Shaping of Metal-Organic Framework Znatzpo4 for Ethylene/Ethane Adsorption Separation

Published: Jan. 1, 2025

Language: Английский

Superhydrophobic Molecular Selector for Efficient Separation of Ethane over Ethylene under Dry and Humid Conditions

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

Exploring humidity-resistant, ethane-selective adsorbents for the one-step purification of polymer-grade (>99.95%) ethylene from ethane-ethylene mixtures is great importance, yet remains a significant challenge. To address this challenge, we present novel strategy constructing "superhydrophobic molecular selector" (SMS) based on porous organic cage (POC), which features superhydrophobic outer surface and an inner cavity with multiple functional sites. The resulting SMS-POC-1 demonstrates excellent C2H6 adsorption capacity (97 cm3 g-1 at 298 K) C2H6/C2H4 selectivity (Sads = 2.40 K), offering superior trade-off between ethane among all C2H6-selective adsorbents. Especially, breakthrough experiments demonstrate that efficiently produces C2H4 60% relative humidity (RH), making it highest-selectivity adsorbent reported to date can stably operate in humid environment. combination experimental results theoretical calculations reveals coexistence synergistic C-H···π interactions hydrogen-bonding sites accounts high separation performance under conditions SMS-POC-1. Our work thus not only general guiding design humidity-resistant adsorption-separation materials but also presents promising candidate potential applications hydrocarbon separation.

Language: Английский

Shaping of metal–organic framework ZnAtzPO4 for ethylene/ethane adsorption separation

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133185 - 133185

Published: April 1, 2025

Language: Английский