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Insight towards Nucleation Mechanism and Change in Morphology for Nanostructured Platinum Thin Film Directly Grown on Carbon Substrate via Electrochemical Deposition

Nanocrystalline platinum with different morphologies is synthesized via electrochemical deposition technique. The nucleation mechanism and its structural effect over the electrodeposited Pt on carbon electrodes have been systematically studied. Powder X-ray diffraction, X-ray photoelectron spectrosc...

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Autores principales: Dhanasekaran, Prabhakaran, Rajavarman, Swaminathan, Selvaganesh, Sivasuriyanarayanan Vinod, Bhat, Santoshkumar Dattatray
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8124617/
https://www.ncbi.nlm.nih.gov/pubmed/33946239
http://dx.doi.org/10.3390/ma14092330
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author Dhanasekaran, Prabhakaran
Rajavarman, Swaminathan
Selvaganesh, Sivasuriyanarayanan Vinod
Bhat, Santoshkumar Dattatray
author_facet Dhanasekaran, Prabhakaran
Rajavarman, Swaminathan
Selvaganesh, Sivasuriyanarayanan Vinod
Bhat, Santoshkumar Dattatray
author_sort Dhanasekaran, Prabhakaran
collection PubMed
description Nanocrystalline platinum with different morphologies is synthesized via electrochemical deposition technique. The nucleation mechanism and its structural effect over the electrodeposited Pt on carbon electrodes have been systematically studied. Powder X-ray diffraction, X-ray photoelectron spectroscopy, and field-emission scanning electron microscopy are employed to study nucleation, oxidation states, and Pt structure growth on a carbon electrode. This study reports significant development of Pt metal nanoparticles with different morphologies such as a sphere, flower, core-flower, and rod-like structure directly fabricated on carbon electrode while tuning the deposition parameters such as current density, time, temperature, pH during the deposition process. The proposed electrochemical route represents a superior fabrication procedure for large-scale electrode fabrication compared to a conventional method for preparing membrane electrode assemblies for fuel cell stacks.
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spelling pubmed-81246172021-05-17 Insight towards Nucleation Mechanism and Change in Morphology for Nanostructured Platinum Thin Film Directly Grown on Carbon Substrate via Electrochemical Deposition Dhanasekaran, Prabhakaran Rajavarman, Swaminathan Selvaganesh, Sivasuriyanarayanan Vinod Bhat, Santoshkumar Dattatray Materials (Basel) Article Nanocrystalline platinum with different morphologies is synthesized via electrochemical deposition technique. The nucleation mechanism and its structural effect over the electrodeposited Pt on carbon electrodes have been systematically studied. Powder X-ray diffraction, X-ray photoelectron spectroscopy, and field-emission scanning electron microscopy are employed to study nucleation, oxidation states, and Pt structure growth on a carbon electrode. This study reports significant development of Pt metal nanoparticles with different morphologies such as a sphere, flower, core-flower, and rod-like structure directly fabricated on carbon electrode while tuning the deposition parameters such as current density, time, temperature, pH during the deposition process. The proposed electrochemical route represents a superior fabrication procedure for large-scale electrode fabrication compared to a conventional method for preparing membrane electrode assemblies for fuel cell stacks. MDPI 2021-04-30 /pmc/articles/PMC8124617/ /pubmed/33946239 http://dx.doi.org/10.3390/ma14092330 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Dhanasekaran, Prabhakaran
Rajavarman, Swaminathan
Selvaganesh, Sivasuriyanarayanan Vinod
Bhat, Santoshkumar Dattatray
Insight towards Nucleation Mechanism and Change in Morphology for Nanostructured Platinum Thin Film Directly Grown on Carbon Substrate via Electrochemical Deposition
title Insight towards Nucleation Mechanism and Change in Morphology for Nanostructured Platinum Thin Film Directly Grown on Carbon Substrate via Electrochemical Deposition
title_full Insight towards Nucleation Mechanism and Change in Morphology for Nanostructured Platinum Thin Film Directly Grown on Carbon Substrate via Electrochemical Deposition
title_fullStr Insight towards Nucleation Mechanism and Change in Morphology for Nanostructured Platinum Thin Film Directly Grown on Carbon Substrate via Electrochemical Deposition
title_full_unstemmed Insight towards Nucleation Mechanism and Change in Morphology for Nanostructured Platinum Thin Film Directly Grown on Carbon Substrate via Electrochemical Deposition
title_short Insight towards Nucleation Mechanism and Change in Morphology for Nanostructured Platinum Thin Film Directly Grown on Carbon Substrate via Electrochemical Deposition
title_sort insight towards nucleation mechanism and change in morphology for nanostructured platinum thin film directly grown on carbon substrate via electrochemical deposition
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8124617/
https://www.ncbi.nlm.nih.gov/pubmed/33946239
http://dx.doi.org/10.3390/ma14092330
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