Raman Spectroscopy and Electrochemical Investigations of Pt Electrocatalyst Supported on Carbon Prepared through Plasma Pyrolysis of Natural Gas
Joint Authors
Ribeiro, J.
Evangelista, Tereza Cristina Santos
Paganoto, Giordano Toscano
Guimarães, Marco Cesar Cunegundes
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-07-28
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Physicochemical and electrochemical characterisations of Pt-based electrocatalysts supported on carbon (Vulcan carbon, C1, and carbon produced by plasma pyrolysis of natural gas, C2) toward ethanol electrooxidation were investigated.
The Pt20/C180 and Pt20/C280 electrocatalysts were prepared by thermal decomposition of polymeric precursors at 350°C.
The electrochemical and physicochemical characterisations of the electrocatalysts were performed by means of X-ray diffraction (XRD), transmission electron microscope (TEM), Raman scattering, cyclic voltammetry, and chronoamperometry tests.
The XRD results show that the Pt-based electrocatalysts present platinum metallic which is face-centered cubic structure.
The results indicate that the Pt20/C180 electrocatalyst has a smaller particle size (10.1–6.9 nm) compared with the Pt20/C280 electrocatalyst; however, the Pt20/C280 particle sizes are similar (12.8–10.4 nm) and almost independent of the reflection planes, which suggests that the Pt crystallites grow with a radial shape.
Raman results reveal that both Vulcan carbon and plasma carbon are graphite-like materials consisting mostly of sp2 carbon.
Cyclic voltammetry and chronoamperometry data obtained in this study indicate that the deposition of Pt on plasma carbon increases its electrocatalytic activity toward ethanol oxidation reaction.
American Psychological Association (APA)
Evangelista, Tereza Cristina Santos& Paganoto, Giordano Toscano& Guimarães, Marco Cesar Cunegundes& Ribeiro, J.. 2015. Raman Spectroscopy and Electrochemical Investigations of Pt Electrocatalyst Supported on Carbon Prepared through Plasma Pyrolysis of Natural Gas. Journal of Spectroscopy،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1070280
Modern Language Association (MLA)
Evangelista, Tereza Cristina Santos…[et al.]. Raman Spectroscopy and Electrochemical Investigations of Pt Electrocatalyst Supported on Carbon Prepared through Plasma Pyrolysis of Natural Gas. Journal of Spectroscopy No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1070280
American Medical Association (AMA)
Evangelista, Tereza Cristina Santos& Paganoto, Giordano Toscano& Guimarães, Marco Cesar Cunegundes& Ribeiro, J.. Raman Spectroscopy and Electrochemical Investigations of Pt Electrocatalyst Supported on Carbon Prepared through Plasma Pyrolysis of Natural Gas. Journal of Spectroscopy. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1070280
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1070280