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Issue 36, 2013
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Controlled deposition of ultra-small Ag particles on TiO2nanorods: oxide/metal hetero-nanostructures with improved catalytic activity

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Abstract

TiO2–Ag hetero-nanocrystals (HNCs) with controllable Ag particle numbers and domain size were synthesized by in situ reduction of silver acetate and further growth of Ag on TiO2 nanorods. The nucleation of Ag on TiO2 as well as the tuning of Ag number and size can be explained by the electrostatic attraction between Ag precursor and TiO2 nanorods as well as further deposition of Ag onto initially formed Ag domains. The formation of hetero-nanostructures was verified by XRD patterns and UV-Vis absorbance. The reported synthesis provides an effective method to produce ultra-small (1–2 nm) nanocatalysts, as the hetero-nanostructures are intrinsic advantageous in forming nanocrystals due to the confinement of nano-size supporting materials, which present improved catalytic activities than most isolated Ag nanocrystals in nanoscale.

Graphical abstract: Controlled deposition of ultra-small Ag particles on TiO2 nanorods: oxide/metal hetero-nanostructures with improved catalytic activity

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Article information


Submitted
07 Jun 2013
Accepted
02 Jul 2013
First published
02 Jul 2013

CrystEngComm, 2013,15, 7230-7235
Article type
Paper

Controlled deposition of ultra-small Ag particles on TiO2 nanorods: oxide/metal hetero-nanostructures with improved catalytic activity

D. Yang, N. Yang and J. Ge, CrystEngComm, 2013, 15, 7230
DOI: 10.1039/C3CE41045E

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