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Kinetic and DFT Studies on the Photoinduced Desorption of Sulfur from Gold Nanoparticles Loaded on Titanium Dioxide
Author(s) -
Kiyonaga Tomokazu,
Mitsui Tomohiro,
Soejima Tetsuro,
Ito Seishiro,
Tada Hiroaki,
Kawahara Tetsuro,
Akita Tomoki,
Tanaka Koji,
Kobayashi Hisayoshi
Publication year - 2005
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200500201
Subject(s) - colloidal gold , desorption , titanium dioxide , nanoparticle , catalysis , reaction rate constant , photochemistry , kinetic energy , titanium , photocatalysis , sulfur , irradiation , chemistry , adsorption , electrochemistry , materials science , nanotechnology , kinetics , electrode , organic chemistry , metallurgy , physics , quantum mechanics , nuclear physics
Cleaning poisoned gold catalysts : Kinetic analysis of the photoinduced desorption of sulfur from gold nanoparticles loaded on TiO 2 particles in water revealed that the rate constant increases with increasing pH. Photoelectrochemical measurements and DFT calculations led to the conclusion that this reaction results from an upward shift in the Fermi energy of gold nanoparticles by irradiation. The picture shows a high‐resolution TEM image of an Au nanoparticle on TiO 2 .