Journal Article

PUBDB-2023-06062

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Tuning the guest-induced spatiotemporal response of isostructural dynamic frameworks towards efficient gas separation and storage

Roztocki, K. (Corresponding author) ; Sobczak, S. ; Smaruj, A. ; Walczak, A.Extern* ; Gołdyn, M. ; Bon, V.Extern* ; Kaskel, S.Extern* ; Stefankiewicz, A. R. (Corresponding author)

2023
RSC London [u.a.]

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Please use a persistent id in citations: doi:10.1039/D3TA02167J  doi:10.3204/PUBDB-2023-06062

Abstract: Understanding and control of the spatiotemporal stimuli-responsiveness of flexible metal–organic frameworks are crucial for the development of novel adsorbents for gas storage and separation technologies. Herein, we report two isostructural pillared-layer dynamic frameworks differing only in one atom that bridge a benzenocarboxylate linker. Through a synthetic approach, we switch the stepwise CO$_2$-induced transformation into a continuous one. Our findings are proved by equilibrium and time-resolved in situ powder X-ray diffraction collected during CO$_2$ adsorption at 195 K. Finally, we use high-pressure single and multi-gas adsorption experiments to show the superiority of continuous breathing in CH$_4$ storage and CH$_4$/CO$_2$ separation at 298 K. This report demonstrates that the desirable mechanism of flexible frameworks can be readily achieved through single-atom exchange enabling efficient gas separation and storage.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20211060 (I-20211060) (I-20211060)
3. 05K22OD1 - Instrumentierung für zeitaufgelöste röntgenpulverdiffraktometrische Untersuchungen von adsorptionsinduziertem Schalten in kristallinen nanoporösen Materialien (BMBF-05K22OD1) (BMBF-05K22OD1)

Experiment(s):

1. PETRA Beamline P23 (PETRA III)

Appears in the scientific report 2023

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 10 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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