Effect of gold oxide incorporation on electrochemical corrosion resistance of diamond-like carbon

Autor(es)

Oliveira, C. A. G. S. ^[1] ; Stein, M. F. ^[1] ; Saito, E. ^[2] ; Zanin, H. ^{[1, 3]} ; Vieira, L. S. ^[4] ; Raniero, L. ^[3] ; Trava-Airoldi, V. J. ^[2] ; Lobo, A. O. ^[1] ; Marciano, F. R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Vale Paraiba Univap, Lab Biomed Nanotechnol NanoBio, BR-12244000 Sao Jose Dos Campos, SP - Brazil

^[2] Natl Inst Space Res INPE, Associated Lab Sensors & Mat, BR-12227010 Sao Jose Dos Campos, SP - Brazil

^[3] Univ Vale Paraiba Univap, Lab Energy Storage & Supply ES&S, BR-12244000 Sao Jose Dos Campos, SP - Brazil

^[4] Univ Vale Paraiba Univap, Lab Biomed Vibrat Spect LEVB, BR-12244000 Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: DIAMOND AND RELATED MATERIALS; v. 53, p. 40-44, MAR 2015.
• Citações Web of Science: 9

Resumo

Gold oxide nanoparticles were incorporated into diamond-like carbon (DLC) films in order to improve protection of AISI-1020 from electrochemical corrosion. The AuOx:DLC films were prepared by plasma enhanced chemical vapor deposition and were subsequently characterized by scanning electron microscopy, Raman spectroscopy and electrochemistry measurements. The electrochemical corrosion performance of the AuOx:DLC coating was contrasted to AISI-1020 and DLC without AuOx coating. The electrochemical techniques that were utilized for this investigation were potentiodynamic and electrochemistry impedance spectroscopy. The electrochemical analysis indicated that AuOx:DLC films presented superior corrosion resistance as compared to DLC. This resulted in 99.8% and 96.8% protection efficiency respectively, when compared to AuOx:DLC and DLC coatings. (C) 2015 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 11/20345-7 - Estudo de filmes de carbono-tipo diamante contendo nanopartículas incorporadas para aplicações biomédicas
• Beneficiário: Fernanda Roberta Marciano
• Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
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• Beneficiário: Anderson de Oliveira Lobo
• Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
• Processo FAPESP: 14/02163-7 - Desenvolvimento de dispositivos supercapacitores a partir de grafenos, nanotubos de carbono e diamantes
• Beneficiário: Hudson Giovani Zanin
• Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores