Formic Acid Oxidation of Electrodeposited Platinum Nanostructures on Graphene Oxide Modified Electrode in Acid Medium
Perumal Ramesh Kumar1, Raju Praveen2, Ramasamy Ramaraj3
1Perumal Ramesh Kumar, Department of Chemistry Advanced Sciences, Kalasalingam Academy of Research and Education College, Krishnankoil (Tamil Nadu), India.
2Raju Praveen, Department of Chemistry, Madurai Kamaraj University Madurai (Tamil Nadu), India.
3Ramasamy Ramaraj, Department of Chemistry, Madurai Kamaraj University, Madurai (Tamil Nadu), India.
Manuscript received on 01 December 2019 | Revised Manuscript received on 19 December 2019 | Manuscript Published on 31 December 2019 | PP: 517-523 | Volume-8 Issue-4S2 December 2019 | Retrieval Number: D11641284S219/2019©BEIESP | DOI: 10.35940/ijrte.D1164.1284S219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this report, we investigated an electrochemical oxidation of formic acid using electrodeposited platinum (Pt) nanostructures on graphene oxide (GO) coated glassy carbon (GC) electrode. The modified electrode is well characterized with the aid of cyclic voltammetry (CV), scanning electron microscopy (SEM), X-ray diffraction (XRD) and Raman analyses. A crystalline flower-like Pt nanostructures were found on GO modified electrode. The GO-Pt modified electrode displayed improved catalytic current signal in formic acid oxidation than the bare GC and Pt nanastrutures modified electrodes. The loading of GO amount dependent catalytic performance was studied to optimize the GO amount for the efficient electrocatalytic activity. The mass activity of the GO-Pt modified electrode is 2.2 times higher than the Pt modified electrode in formic acid electrooxidation. The GO-Pt nanostructures show good stability in amperometric i-t curve and consequently, show the higher turnover number than the only Pt modified electrode.
Keywords: Pt Nanostructures, Graphene Oxide, Formic Acid Oxidation, Electrodeposition, Fuel Cells.
Scope of the Article: Bio-Science and Bio-Technology