Sequential Water Sorption/Desorption of a Nonporous Adaptive Organic Ligand Bridged Coordination Polymer for Atmospheric Moisture Harvesting
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Published:2023-08-22
Issue:54
Volume:29
Page:
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ISSN:0947-6539
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Container-title:Chemistry – A European Journal
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language:en
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Short-container-title:Chemistry A European J
Author:
Meng Liao12,
Lan Jian‐Hui1,
Huang Zhi‐Wei13,
Liu Yang1,
Hu Kong‐Qiu1,
Yuan Li‐Yong1,
Wang Xin‐Peng2,
Chai Zhi‐Fang1,
Mei Lei1,
Shi Wei‐Qun1ORCID
Affiliation:
1. Laboratory of Nuclear Energy Chemistry Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
2. State Key Laboratory of Featured Metal Materials Life-cycle Safety for Composite Structures School of Chemistry and Chemical Engineering Guangxi University Nanning 530004 China
3. Radiochemistry Laboratory School of Nuclear Science and Technology Lanzhou University 730000 Lanzhou China
Abstract
AbstractMoisture harvesters with favourable attributes such as easy synthetic availability and good processability as alternatives for atmospheric moisture harvesting (AWH) are desirable. This study reports a novel nonporous anionic coordination polymer (CP) of uranyl squarate with methyl viologen (MV2+) as charge balancing ions (named U‐Squ‐CP) which displays intriguing sequential water sorption/desorption behavior as the relative humidity (RH) changes gradually. The evaluation of AWH performance of U‐Squ‐CP shows that it can absorb water vapor under air atmosphere at a low RH of 20 % typical of the levels found in most dry regions of the world, and have good cycling durability, thus demonstrating the capability as a potential moisture harvester for AWH. To the authors’ knowledge, this is the first report on non‐porous organic ligand bridged CP materials for AWH. Moreover, a stepwise water‐filling mechanism for the water sorption/desorption process is deciphered by comprehensive characterizations combining single‐crystal diffraction, which provides a reasonable explanation for the special moisture harvesting behaviour of this non‐porous crystalline material.
Funder
National Natural Science Foundation of China
Youth Innovation Promotion Association of the Chinese Academy of Sciences
National Science Fund for Distinguished Young Scholars
Subject
General Chemistry,Catalysis,Organic Chemistry