Synthesis and characterization of the ionic liquid 1-methyl-3-(2,6-(S)-dimethyloct-2-ene)-imidazol tetrafluoroborate

Authors

DOI:

https://doi.org/10.33448/rsd-v10i10.18988

Keywords:

Ionic liquid; Tetrafluoroborate; 1-Methylimidazole; Reaction yield; Water; Electrolysis.

Abstract

Ionic liquids (ILs) are good electrical conductors and organic liquid compounds at room temperature, with potential applicability in water electrolysis for H2 generation. The objective of this work is to describe the synthesis, characterization and study of the feasibility of ionic liquid 1-methyl-3-(2,6-(S)-dimethyloct-2-ene)-imidazolium tetrafluoroborate (MDI-BF4) as electrolyte to produce hydrogen through electrolysis of water. The synthesized MDI-BF4 was characterized by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), mid-infrared spectroscopy with Fourier Transform by method of attenuated total reflectance (FTIR-ATR), nuclear magnetic resonance spectroscopy of hydrogen (NMR 1H) and cyclic voltammetry (CV). The yield of the synthesis were calculate by the TGA and DSC. From the results: The infrared spectroscopy identified the functional groups of the compound and the B-F bond at 1053 cm-1. The NMR 1H analyzed and compared with literature data confirms the structure of MDI-BF4. The yield of the synthesis of MDI-BF4 which was 88.84%. The current density achieved by MDI-BF4 in the voltammogram shows that the IL can conduct electrical current regardless the concentration of water, indicating that the MDI-BF4 is a potential electrolyte for hydrogen production from water electrolysis.

Author Biographies

Ângelo Anderson Silva de Oliveira, Federal University of Rio Grande do Norte

Petroleum Science and Engineering Postgraduate Program, Federal Universityof Rio Grande do Norte, Brazil

Dulce Maria de Araújo Melo, Federal University of Rio Grande do Norte

Materials Science and Engineering Post-graduate Program, Federal University of Rio
Grande do Norte, Brazil

Chemisty Post-graduate Program, Federal University of Rio Grande do Norte, Brazil

Heloísa Pimenta de Macedo, Federal University of Rio Grande do Norte

Materials Science and Engineering Post-graduate Program, Federal University of Rio Grande do Norte, Brazil

Rodolfo Luis Bezerra de Araújo Medeiros, Federal University of Rio Grande do Norte

Materials Science and Engineering Post-graduate Program, Federal University of Rio Grande do Norte, Brazil

 

Ranayanne Suylane Pereira Campos, Federal University of Rio Grande do Norte

Chemisty Post-graduate Program, Federal Universityof Rio Grande do Norte, Natal, Brazil

Pedro Paulo Linhares Ferreira, Federal University of Rio Grande do Norte

Materials Science and Engineering Post-graduate Program, Federal University of Rio Grande do Norte, Brazil

Tomaz Rodrigues de Araújo, Federal University of Rio Grande do Norte

Materials Science and Engineering Post-graduate Program, Federal University of Rio Grande do Norte, Brazil

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Published

14/08/2021

How to Cite

OLIVEIRA, Ângelo A. S. de .; MELO, D. M. de A.; MACEDO, H. P. de .; MEDEIROS, R. L. B. de A.; CAMPOS, R. S. P.; FERREIRA, P. P. L.; ARAÚJO, T. R. de. Synthesis and characterization of the ionic liquid 1-methyl-3-(2,6-(S)-dimethyloct-2-ene)-imidazol tetrafluoroborate. Research, Society and Development, [S. l.], v. 10, n. 10, p. e393101018988, 2021. DOI: 10.33448/rsd-v10i10.18988. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/18988. Acesso em: 25 oct. 2021.

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Section

Exact and Earth Sciences