Effect of the electrolyte composition on the corrosion resistance of single-layer CVD-graphene
The corrosion resistance of a single-layer graphene film synthetized via chemical vapor deposition (CVD) on a polycrystalline copper substrate is studied. The anticorrosive properties were identified by means of electrochemical tests of potentiodynamic polarization and electrochemical impedance spec...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/375870 |
| Acceso en línea: | http://hdl.handle.net/10261/375870 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85130778260&doi=10.1016%2fj.surfin.2022.102025&partnerID=40&md5=9571db6f2c6f1d0d273774122d7c7d3b |
| Access Level: | acceso abierto |
| Palabra clave: | Corrosion resistance CVD Graphene Oxidation |
| Sumario: | The corrosion resistance of a single-layer graphene film synthetized via chemical vapor deposition (CVD) on a polycrystalline copper substrate is studied. The anticorrosive properties were identified by means of electrochemical tests of potentiodynamic polarization and electrochemical impedance spectroscopy in the following environments: (a) 0.5 M H2SO4, (b) 0.5 M HCl, (c) 3.5wt% NaCl + 0.5 M H2SO4, and (d) Na2S2O3 (10−4 mol / l) + 5% NaCl + (CH3COOH) 0.50%). For the characterization of the graphene and corrosion products, the following techniques were used: Raman spectroscopy, AUGER electron spectroscopy, X-ray energy dispersion probe (EDS), scanning electron microscopy (SEM), and confocal laser scanning microscopy (CLSM). The corrosion mechanism and the degree of degradation of the graphene are discussed as a function of the corrosive electrolyte. © 2022 Elsevier B.V. |
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