Mesoporous anatase TiO2 composite electrodes: Electrochemical characterization and high rate performances

M. Mancini, P. Kubiak, J. Geserick, R. Marassi, N. Hüsing, M. Wohlfahrt-Mehrens

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Abstract

A metal film of Cu or Sn was vacuum-deposited on the surface of mesoporous anatase TiO2 electrodes, and the Li insertion/extraction behaviour was investigated by cyclic voltammetry and galvanostatic cycling. The morphological and structural characterization of metal-coated electrodes showed that the metallic layers do not alter the structure of anatase. The electrode surface modification made by thin-film deposition improves the kinetics of Li insertion/extraction and remarkably enhances the electrochemical performances in terms of capacity and stability, especially at high charge/discharge rates.

Original languageEnglish
Pages (from-to)585-589
Number of pages5
JournalJournal of Power Sources
Volume189
Issue number1
DOIs
Publication statusPublished - 1 Apr 2009

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Keywords

  • Anatase TiO
  • Electrochemical lithium insertion
  • Mesoporous materials

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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