J Am Chem Soc
Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States.
Published: September 2021
A large library of novel porous salts based on charged coordination cages was synthesized via straightforward salt metathesis reactions. For these, solutions of salts of oppositely charged coordination cages are mixed to precipitate MOF-like permanently porous products where metal identity, pore size, ligand functional groups, and surface area are highly tunable. For most of these materials, the constituent cages combine in the ratios expected based on their charge. Additional studies focused on the rate of salt metathesis or reaction stoichiometry as variables to tune particle size or product composition, respectively. It is expected that the design principles outlined here will be widely applicable for the synthesis of new porous salts based on a variety of charged porous molecular precursors.
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http://dx.doi.org/10.1021/jacs.1c05613 | DOI Listing |
Polymers (Basel)
December 2024
School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, China.
In this study, CO reacted with a curing agent through nucleophilic addition to form ammonium salts, enabling the stable capture and internal release of CO, which achieved gas-phase nucleation and foaming. Additionally, the introduction of wave-absorbing agents improved the absorption mechanism and promoted uniform foaming. This nucleation-free foaming process relies on the induced growth of gas nuclei and the synergistic effect of the wave-absorbing agents, effectively preventing the uneven foaming issues caused by traditional nucleating agents.
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December 2024
School of Energy and Power Engineering, Northeast Electric Power University, Jilin 132012, China.
In this paper, the enhancement of thermochemical energy storage by alkali metal chloride salts-doped Ca-based sorbents is revealed by experiments and DFT calculations. The results indicate that NaCl and KCl doping increases the reaction rate and cycle stability. Compared to CaO, the conversion of NaCl-CaO and KCl-CaO after one cycle is increased by 59.
View Article and Find Full Text PDFChemosphere
January 2025
School of Mechanical Engineering, Korea University of Technology and Education, Cheonan, Chungnam, 31253, Republic of Korea; Advanced Technology Research Centre, Korea University of Technology and Education, Cheonan, Chungnam, 31253, Republic of Korea; Future Convergence Engineering, Korea University of Technology and Education, Cheonan, Chungnam, 31253, Republic of Korea. Electronic address:
In the field of solar steam generation, hydrogels with interfacial evaporation configurations stand as a promising candidate for solar evaporators. Hydrogel-based photothermal materials provide excellent hydration channels for supplying water to an evaporative layer due to their porous structure and hydrophilic nature. This work proposed a facile and in-situ fabrication of sodium alginate hydrogel incorporated with cellulose nanocrystals and polypyrrole as an effective photothermal material.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Department of Chemistry, University of Tennessee Knoxville, Knoxville, TN, 37996, USA.
Sub-Ångstrom-level porosity engineering, which is appealing in gas separations, has been demonstrated in solid carbon, polymer, and framework materials but rarely achieved in the liquid phase. In this work, a gas molecular sieving effect in the liquid phase at sub-5 Ångstrom scale is created via sophisticated porosity tuning in calixarene-derived porous liquids (PLs). Type II PLs are constructed via supramolecular complexation between the sodium salts of calixarene derivatives and crown ether solvents.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
State Key Laboratory of Coal Mine Disaster Dynamics and Control, School of Chemistry and Chemical Engineering, Multi-Scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 400044, China.
Recently, halide perovskites have been recognized for their thermochromic characteristics, showing significant potential in information encryption applications. However, the limited luminescence color gamut hinders the encryption of complex multicolor information. Herein, for the first time, multicolor thermochromic perovskites with luminescence covering the entire visible spectrum have been designed.
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