Unraveling a Stable 16-Ring Aluminophosphate DNL-11 through Three-Dimensional Electron Diffraction for Atmospheric Water Harvesting

Chenyang Nie; Nana Yan; Chenyi Liao; Chao Ma; Xiaona Liu; Jing Wang; Guohui Li; Peng Guo; Zhongmin Liu

doi:10.1021/jacs.4c01393

Unraveling a Stable 16-Ring Aluminophosphate DNL-11 through Three-Dimensional Electron Diffraction for Atmospheric Water Harvesting

J Am Chem Soc. 2024 Apr 17;146(15):10257-10262. doi: 10.1021/jacs.4c01393. Epub 2024 Apr 5.

Authors

Chenyang Nie^{1

2}, Nana Yan¹, Chenyi Liao³, Chao Ma^{1

2

4}, Xiaona Liu¹, Jing Wang¹, Guohui Li³, Peng Guo^{1

2}, Zhongmin Liu^{1

2}

Affiliations

¹ National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China.
² University of Chinese Academy of Sciences, Beijing 100049, China.
³ Laboratory of Molecular Modeling and Design, State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China.
⁴ School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China.

PMID: 38578111
DOI: 10.1021/jacs.4c01393

Abstract

Sorption-based atmospheric water harvesting (AWH) is a promising solution for addressing water scarcity. Developing cost-effective and stable water adsorbents with high water uptake capacity and a low-temperature regeneration requirement is a crucially important procedure. In this Communication, we present a novel and stable aluminophosphate (AlPO) molecular sieve (MS) named DNL-11 with 16-ring channels synthesized by using an affordable and commercialized organic structure directing agent (OSDA), whose crystallographic structure is elucidated by three-dimensional electron diffraction (3D ED). DNL-11 exhibits a significant water uptake capacity (189 mg/g) at a very low vapor pressure (5% relative humidity at 30 °C). In addition, most of the adsorbed water can be effortlessly removed by purging N₂ at 25 °C under ambient pressure conditions. This may expand the possibility of AWH under extreme drought conditions.