Inflation Negative Compressibility during Intrusion-Extrusion of a Non-Wetting Liquid into a Flexible Nanoporous Framework.

Autor: Zajdel P; Institute of Physics, University of Silesia, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland., Chorążewski M; Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland., Leão JB; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States., Jensen GV; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States.; Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States., Bleuel M; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States.; Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742-2115, United States., Zhang HF; Department of Chemistry, Shantou University, Guangdong 515063, China., Feng T; Department of Chemistry, Shantou University, Guangdong 515063, China., Luo D; Department of Chemistry, Shantou University, Guangdong 515063, China.; College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China., Li M; Department of Chemistry, Shantou University, Guangdong 515063, China., Lowe AR; Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland., Geppert-Rybczynska M; Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland., Li D; College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China., Grosu Y; Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.; Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain.
Jazyk: angličtina
Zdroj: The journal of physical chemistry letters [J Phys Chem Lett] 2021 May 27; Vol. 12 (20), pp. 4951-4957. Date of Electronic Publication: 2021 May 19.
DOI: 10.1021/acs.jpclett.1c01305
Abstrakt: Negative compressibility (NC) is a phenomenon when an object expands/shrinks in at least one of its dimensions upon compression/decompression. NC is very rare and is of great interest for a number of applications. In this work a gigantic (more than one order of magnitude higher compared to the reported values) NC effect was recorded during intrusion-extrusion of a non-wetting liquid into a flexible porous structure. For this purpose, in situ high-pressure neutron scattering, intrusion-extrusion experiments, and DFT calculations were applied to a system consisting of water and a highly hydrophobic Cu 2 (tebpz) metal-organic framework (MOF), which upon water penetration expands in a and c directions to demonstrate NC coefficients more than order of magnitude higher compared to the highest values ever reported. The proposed approach is not limited to the materials used in this work and can be applied to achieve coefficients of negative linear compressibility of more than 10 3 TPa -1 .
Databáze: MEDLINE