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- Title
Sequential Water Sorption/Desorption of a Nonporous Adaptive Organic Ligand Bridged Coordination Polymer for Atmospheric Moisture Harvesting.
- Authors
Meng, Liao; Lan, Jian‐Hui; Huang, Zhi‐Wei; Liu, Yang; Hu, Kong‐Qiu; Yuan, Li‐Yong; Wang, Xin‐Peng; Chai, Zhi‐Fang; Mei, Lei; Shi, Wei‐Qun
- Abstract
Moisture 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.
- Subjects
HUMIDITY; COORDINATION polymers; HARVESTING; WATER vapor; DESORPTION; ATMOSPHERIC boundary layer; SORPTION; MOISTURE
- Publication
Chemistry - A European Journal, 2023, Vol 29, Issue 54, p1
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202301929