Electro-oxidation of glycerol on a nickel-based metal-organic framework/multiwall carbon nanotubes composite electrode

Document Type : Research Article

Author

Department of Chemistry, Faculty of Sciences, University of Qom, Qom, Iran

10.22091/jaem.2024.10622.1010

Abstract

In this study, the electrochemical oxidation of glycerol on a nickel-based metal-organic framework (MOF)/multiwall carbon nanotubes (CNTs) composite electrode was examined. The morphology of the composite electrode surface was characterized by scanning electron microscopy (SEM). The cyclic voltammetry technique was used to evaluate the electrocatalytic performance of the electrode toward the glycerol oxidation and the stability of the electrode was examined by the current-time curve of chronoamperometry technique. The electrochemical performances of the MOF before and after compositing with the CNTs were evaluated and compared with each other. The results indicate that, the Ni-MOF and the CNTs, when combined as a composite electrode material, can effectively shows a good electrocatalytic activity for the glycerol electro-oxidation. These results were attributable to the combination of good electrical conductivity and large surface area of CNTs and high electrocatalytic activity of Ni-MOF as well as its highly porous nature. This makes it a good material for use in glycerol fuel cell applications.

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Main Subjects

Advances in Energy and Materials Research

Articles in Press, Accepted Manuscript
Available Online from 28 September 2024

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