2012
DOI: 10.1002/anie.201201059
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Involvement of Surface‐Bound Radicals in the Oxidation of Toluene Using Supported Au‐Pd Nanoparticles

Abstract: All bound up: Au‐Pd nanoparticles having a mean particle size of 3–4 nm and supported on titania (see figure; scale bar 2 nm) exhibit high activity in the selective oxidation of aromatic hydrocarbons using tert‐butyl hydroperoxide as an oxidant. The supported nanoparticles stabilize surface‐bound radicals.

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Cited by 93 publications
(67 citation statements)
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“…The selective oxidation of organic compounds, such as alcohols or hydrocarbons, is a primary and essential transformation in organic synthesis and industrial chemistry 1 . Traditionally, various oxidants, such as toxic metal oxides 2 , peroxides (for example, tert-butylhydroperoxide 3 or hydrogen peroxide 4,5 ), halides 6 or ozone 7 , etc., were used for these transformations. Compared with those oxidants, undoubtedly, air is the most ubiquitous, atomeconomical and environmentally benign oxidant.…”
mentioning
confidence: 99%
“…The selective oxidation of organic compounds, such as alcohols or hydrocarbons, is a primary and essential transformation in organic synthesis and industrial chemistry 1 . Traditionally, various oxidants, such as toxic metal oxides 2 , peroxides (for example, tert-butylhydroperoxide 3 or hydrogen peroxide 4,5 ), halides 6 or ozone 7 , etc., were used for these transformations. Compared with those oxidants, undoubtedly, air is the most ubiquitous, atomeconomical and environmentally benign oxidant.…”
mentioning
confidence: 99%
“…Reaction conditions: molar ratio toluene/ TBHP = 1, 80 8C, catalyst (0.2 g), substrate/metal molar ratio = 6,500. Reprinted with permission from reference [35]. Copyright (2012) Wiley-VCH compounds (alcohols, polyols and alkanes) with molecular oxygen, hydrogen peroxide or alkyl hydroperoxides as ''green'' oxidants.…”
Section: Discussionmentioning
confidence: 99%
“…High conversion of toluene at mild conditions (80°C, atmospheric pressure) was achieved with benzoic acid being the major product ( Fig. 8) [35]. Mechanistic studies were performed in order to elucidate the reaction mechanism, and especially the role of TBHP, and it was found for the first time that surface-bound oxygen-centred radicals play a role in activating toluene, as demonstrated by EPR studies.…”
Section: Case II Selective Oxidation Of Hydrocarbonsmentioning
confidence: 98%
“…Structure effect Compared to monometallic nanocatalysts, bimetallic nanomaterials show greater potential in catalytic applications due to their enhanced catalytic properties [122][123][124][125]. More importantly, nanocatalysts which consist of two distinct metals allow more flexible design according to the activity/selectivity requirements for a practical reaction.…”
Section: Catalytic Properties Of Bimetallic Nanomaterials: Key Influementioning
confidence: 99%