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

Akash Garg; Miroslav Almáši; Robin Saini; Devina Rattan Paul; Anshu Sharma; Ankur Jain; Indra Prabh Jain

doi:10.1007/s11356-022-21290-y

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

Environ Sci Pollut Res Int. 2023 Sep;30(44):98548-98562. doi: 10.1007/s11356-022-21290-y. Epub 2022 Jun 10.

Authors

Akash Garg¹, Miroslav Almáši², Robin Saini³, Devina Rattan Paul⁴, Anshu Sharma⁵, Ankur Jain^{1

6}, Indra Prabh Jain⁷

Affiliations

¹ Department of Physics, School of Applied Science, Suresh Gyan Vihar University, Jaipur, 302017, India.
² Department of Inorganic Chemistry, Faculty of Science, P. J. Safarik University, Moyzesova 11, 041 54, Kosice, Slovak Republic.
³ Department of Physics and Astrophysics, School of Basic Sciences, Central University of Haryana, Mahendergarh, 123031, India.
⁴ Center of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, 131039, India.
⁵ Department of Physics, School of Engineering & Technology, Central University of Haryana, Mahendergarh, 123031, India. anshushsharda@gmail.com.
⁶ Centre for Renewable Energy & Storage, Suresh Gyan Vihar University, Jaipur, 302017, India.
⁷ Center for Non-Conventional Energy Resources, University of Rajasthan, Jaipur, 302004, India.

PMID: 35688971
DOI: 10.1007/s11356-022-21290-y

Abstract

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.

Keywords: Energy storage; Hydrogen; MOFs; Sensing properties; Synthesis and characterization.

MeSH terms

Humidity
Hydrogen
Metal-Organic Frameworks*
Polymers
Terbium

Substances

Metal-Organic Frameworks
Terbium
Polymers
Hydrogen