The decomposition of H
2
O
2
over the components of Au/TiO
2
catalysts
2011 ◽
Vol 467
(2131)
◽
pp. 1885-1899
◽
Keyword(s):
Hydrogen peroxide is an important oxidant that is increasingly being employed in selective oxidation reactions over support metal catalysts. We present a density functional theory study of the adsorption of H 2 O 2 to the components of a model Au/TiO 2 system based on Au 10 nanoclusters and the rutile TiO 2 (110) surface. We find that H 2 O 2 decomposes easily to 2OH on the metal nanoparticles while the interaction with surface hydroxyls on TiO 2 (110) gives a low barrier to a surface OOH species. This work suggests that the production of H 2 O 2 takes place at the interface between the particle and oxide and we further show how this interface region is influenced by the hydroxylation of the surface.
2010 ◽
Vol 56
(1)
◽
pp. 523-530
◽
2007 ◽
Vol 111
(16)
◽
pp. 3152-3160
◽
2010 ◽
Vol 272
(2)
◽
pp. 227-234
◽
2004 ◽
Vol 674
(1-3)
◽
pp. 113-119
◽
2012 ◽
Vol 18
(12)
◽
pp. 5107-5111
◽
2009 ◽
Vol 30
(3)
◽
pp. 438-446
◽
2005 ◽
Vol 731
(1-3)
◽
pp. 49-55
◽
2011 ◽
Vol 115
(51)
◽
pp. 25290-25297
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