Electrochemical behaviour of a composite Rh/TiO

S. Mentus, I. Krstić, Ž. Tešić, A. Montone

Research output: Contribution to conferencePaper

Abstract

Potentiodynamic polarization of a mechanically polished titanium electrode in a diluted solution of Rhodium(III) chloride in 0.1 M perchloric acid was performed, resulting in simultaneous formation of both Rh and TiO 2 films. The morphology of obtained Rh/TiO 2 composite film followed the morphology of titanium support, as evidenced by SEM technique. This composite surface was examined by cyclic voltammetry in both acidic and alkaline solutions, in the potential region of both hydrogen and oxygen underpotential deposition. The charge related to hydrogen underpotential deposition corresponded to a surface roughness of 43. As a consequence of high surface roughness, the diffusion current of oxygen reduction in an oxygen saturated 0.1 M NaOH solution, measured by voltammetry on rotating disc electrode, was found to be comparable to the current of hydrogen underpotential deposition.
Original languageEnglish
Publication statusPublished - 2006
Externally publishedYes
Event7th Conference of the Yugoslav Materials Research Society - Recent Developments in Advanced Materials and Processes, YUCOMAT VII - , Serbia
Duration: 1 Jan 2006 → …

Conference

Conference7th Conference of the Yugoslav Materials Research Society - Recent Developments in Advanced Materials and Processes, YUCOMAT VII
CountrySerbia
Period1/1/06 → …

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Mentus, S., Krstić, I., Tešić, Ž., & Montone, A. (2006). Electrochemical behaviour of a composite Rh/TiO. Paper presented at 7th Conference of the Yugoslav Materials Research Society - Recent Developments in Advanced Materials and Processes, YUCOMAT VII, Serbia.