Growth of Gold Nanoparticle Arrays in TiO Mesoporous Matrixes Growth of Gold Nanoparticle Arrays in TiO 2 Mesoporous Matrixes

  • Prez M
  • Otal E
  • Bilmes S
 et al. 
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Abstract

An interconnected Au nanoparticle arrangement is obtained by electrodeposition from Au(III) soluble complexes within the pore system of block-copolymer templated mesoporous titania films. The resulting AuTiO2 nanocomposites (5 nm Au particles, 5.5 nm amorphous titania walls) have the electrochemical behavior of a gold electrode of high surface area. The attenuation of Au surface plasmon due to -OH electroadsorption and the existence of mixed localized states in these AuTiO2 nanocomposites are observed by in situ spectroelectrochemistry.

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Authors

  • Ma Dolores Prez

  • E Otal

  • Sara A Bilmes

  • Galo J A A Soler-illia

  • Eduardo L Crepaldi

  • David Grosso

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