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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Diamond/porous titanium three-dimensional hybrid electrodes

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Author(s):
Braga, N. A. [1] ; Cairo, C. A. A. [2] ; Matsushima, J. T. [1] ; Baldan, M. R. [1] ; Ferreira, N. G. [1]
Total Authors: 5
Affiliation:
[1] Inst Nacl Pesquisas Espaciais, BR-12245970 Sao Jose Dos Campos, SP - Brazil
[2] Comandogeral Tecnol Aeroespacial, BR-12228904 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Solid State Electrochemistry; v. 14, n. 2, p. 313-321, FEB 2010.
Web of Science Citations: 22
Abstract

Hybrid three-dimensional electrodes produced from microcrystalline boron-doped diamond (BDD) and/or nanocrystalline diamond films were grown on porous titanium (Ti) substrate by hot filament chemical vapor deposition (HFCVD) technique. Powder metallurgy technique was used to obtain the Ti substrates provided by interconnected and open pores among its volume. Diamond growth parameters were optimized in order to provide the entire substrate surface covering including the deeper surfaces, pore bottoms, and walls. The morphology and structure of these electrodes were studied by scanning electron microscopy (SEM) and visible Raman spectroscopy techniques, respectively. Electrochemical response was characterized by cyclic voltammetry measurements. Results showed a wide working potential window and low background current characteristic of the diamond electrodes. The kinetic parameters also pointed out to a quasi-reversible behavior for these hybrid three-dimensional diamond/Ti electrodes. (AU)

FAPESP's process: 07/00013-4 - New materials, studies and applications of CVD diamond, diamond-like-carbon (DLC) and nanostructured carbon obtained by chemical vapor deposition
Grantee:Evaldo Jose Corat
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 08/04968-1 - Growth of micro/nanostructured diamond and carbon nanotubes on pure porous tridimensionaly titanium for wastewater treatment applications
Grantee:Neila de Almeida Braga
Support Opportunities: Scholarships in Brazil - Post-Doctoral