Premium
Massive Pressure Amplification by Stimulated Contraction of Mesoporous Frameworks **
Author(s) -
Bon Volodymyr,
Krause Simon,
Senkovska Irena,
Grimm Nico,
Wallacher Dirk,
Többens Daniel M.,
Kaskel Stefan
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202100549
Subject(s) - flammable liquid , synchrotron , carbon dioxide , high pressure , ambient pressure , materials science , contraction (grammar) , adsorption , chemical engineering , nanotechnology , chemistry , chemical physics , thermodynamics , physics , organic chemistry , optics , medicine , engineering
Herein we demonstrate mesoporous frameworks interacting with carbon dioxide leading to stimulated structural contractions and massive out‐of‐equilibrium pressure amplification well beyond ambient pressure. Carbon dioxide, a non‐toxic and non‐flammable working medium, is promising for the development of pressure‐amplifying frameworks for pneumatic technologies and safety systems. The strong interaction of the fluid with the framework even contracts DUT‐46, a framework hitherto considered as non‐flexible. Synchrotron‐based in situ PXRD/adsorption experiments reveal the characteristic contraction pressure for DUT‐49 pressure amplification in the range of 350–680 kPa. The stimulated framework contraction expels 1.1 to 2.4 mmol g −1 CO 2 leading to autonomous pressure amplification in a pneumatic demonstrator system up to 428 kPa. According to system level estimations even higher theoretical pressure amplification may be achieved between 535 and 1011 kPa.