Work

LiCl@C-BMZIF Porous Composites: Synthesis, Structural Characterization, and the Effects of Carbonization Temperature and Salt Loading on Thermochemical Energy Storage

Year: 2025

Type: article

Abstract: To address the imbalance in energy supply and demand across different regions and seasons, the thermochemical conversion process was selected to efficiently utilize surplus energy. In the search for suitable novel materials, this study developed a porous matrix “in-salt” composite using a carbonized metal-organic framework as the carrier and LiCl as the primary reactant. When exposed to water vapor, the innovative material enabled both adsorption and desorption of water vapor, leading to the release and storage of thermal energy, thereby achieving effective energy storage. Using Zn(NO3)2·6H2O and Co(NO3)2·6H2O as metal ion sources and 2-methylimidazole as the ligand, bimetallic zeolitic imidazolate frameworks (BMZIFs) were fabricated via the liquid-phase precipitation method. The composite specimen prepared at a carbonization temperature of 1000 °C with a 20% LiCl mass concentration exhibited the most promising thermal storage performance, achieving the highest capacity, with a final water loss of 53.56% and a stable water adsorption capacity of about 0.831 g·g−1.

Source: Crystals

DOI: 10.3390/cryst15100889

Authors: Fuyao Zhang, Wenjing Wei, Quanrong Fang, Xianfeng Fan

Institutions: University of Edinburgh, Zhejiang University

Language: English

Topic: Adsorption and Cooling Systems

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: gold

Estimated APC paid: $2,534