| Texto completo | |
| Autor(es): |
Truong, Bao N.
;
Borges, Daiane D.
;
Park, Jaedeuk
;
Lee, Ji Sun
;
Jo, Donghui
;
Chang, Jong-San
;
Cho, Sung June
;
Maurin, Guillaume
;
Cho, Kyung Ho
;
Lee, U-Hwang
Número total de Autores: 10
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ADVANCED SCIENCE; v. 10, n. 21, p. 8-pg., 2023-05-13. |
| Resumo | |
Water adsorption-driven heat transfer (AHT) technology has emerged as a promising solution to address crisis of the global energy consumption and environmental pollution of current heating and cooling processes. Hydrophilicity of water adsorbents plays a decisive role in these applications. This work reports an easy, green, and inexpensive approach to tuning the hydrophilicity of metal-organic frameworks (MOFs) by incorporating mixed linkers, isophthalic acid (IPA), and 3,5-pyridinedicarboxylic acid (PYDC), with various ratios in a series of Al-xIPA-(100-x)PYDC (x: feeding ratio of IPA) MOFs. The designed mixed-linkers MOFs show a variation of hydrophilicity along the fraction of the linkers. Representative compounds with a proportional mixed linker ratio denoted as KMF-2, exhibit an S-shaped isotherm, an excellent coefficient of performance of 0.75 (cooling) and 1.66 (heating) achieved with low driving temperature below 70 degrees C which offers capability to employ solar or industrial waste heat, remarkable volumetric specific energy capacity (235 kWh m(-3)) and heat-storage capacity (330 kWh m(-3)). The superiority of KMF-2 to IPA or PYDC-containing single-linker MOFs (CAU-10-H and CAU-10pydc, respectively) and most of benchmark adsorbents illustrate the effectiveness of the mixed-linker strategy to design AHT adsorbents with promising performance. (AU) | |
| Processo FAPESP: | 13/08293-7 - CECC - Centro de Engenharia e Ciências Computacionais |
| Beneficiário: | Munir Salomao Skaf |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |