A highly stable terbium(III) metal-organic framework MOF-76(Tb) for hydrogen storage and humidity sensing

Autor: Akash Garg, Miroslav Almáši, Robin Saini, Devina Rattan Paul, Anshu Sharma, Ankur Jain, Indra Prabh Jain
Rok vydání: 2022
Předmět:
Zdroj: Environmental Science and Pollution Research.
ISSN: 1614-7499
0944-1344
DOI: 10.1007/s11356-022-21290-y
Popis: The present study described the synthesis and characterization of MOF-76(Tb) for hydrogen storage and humidity sensing applications. The structure and morphology of as-synthesized material were studied using powder X-ray diffraction, scanning, and transmission electron microscopy. The crystal structure of MOF-76(Tb) consists of terbium(III) and benzene-1,3,5-tricarboxylate(-III) ions, one coordinated aqua ligand and one crystallization N,N´-dimethylformamide molecule. The polymeric framework of MOF-76(Tb) contains 1D sinusoidally shaped channels with sizes of 6.6 × 6.6 Å propagating along c crystallographic axis. The thermogravimetric analysis of the prepared material exhibited thermal stability up to 600 °C. At 77 K and pressure up to 20 bar; 0.6 wt.% hydrogen storage capacity for MOF-76(Tb) was observed. Finally, the humidity sensing measurements (water adsorption experiments) were performed, and the results indicate that MOF-76(Tb) is not a suitable material for moisture sensing applications.
Databáze: OpenAIRE
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