Direct formation of hydrogen peroxide from H2/O2 using a gold catalyst

Landon, Philip; Collier, Paul; Papworth, A. J.; Kiely, Christopher J.; Hutchings, Graham J.

doi:10.1039/b205248m

Cited by 502 publications

(439 citation statements)

References 6 publications

Supporting

Mentioning

413

Contrasting

Unclassified

Order By: Relevance

“…Supported Au catalysts have been investigated for the oxidation of propene to propene oxide using O2/H2 mixtures (39), and it is considered that a surface hydroperoxy species may be formed as the oxidant. We have found that supported Au catalysts can be very effective for the synthesis of hydrogen peroxide (40,41) and, furthermore, the rate of hydrogen peroxide formation can be significantly enhanced by the use of a supported Au/Pd alloy.…”

Section: Production Of Hydrogen Peroxide By the Oxidation Of Moleculamentioning

confidence: 97%

New directions in gold catalysis

Hutchings

2004

Gold Bull

Self Cite

120

View full text Add to dashboard Cite

In the last decade there has been an explosion in the interest shown in catalysis by gold. It is now recognised that gold has unique properties as a catalyst for many reactions with pre-eminence in heterogeneous catalytic oxidation. This paper sets out the general content of a keynote lecture delivered at the second world congress on gold in Vancouver in 2003. The background to this significant interest is discussed and the early work in the field is placed in context. The current areas of interest are described and two reactions, namely the oxidation of glycerol to glyceric acid and the formation of hydrogen peroxide from the oxidation of molecular hydrogen, are discussed. The prospects for future discoveries are also considered.

show abstract

Section: Production Of Hydrogen Peroxide By the Oxidation Of Moleculamentioning

confidence: 97%

New directions in gold catalysis

Hutchings

2004

Gold Bull

Self Cite

120

View full text Add to dashboard Cite

show abstract

“…Transportation from point of manufacture to point of use is expensive and there is a definite market need to develop a safe, modular process that can be operated cost effectively at the point of use. There is evidence emerging in the literature and patent applications that gold-based catalysts might be applied effectively for this purpose (19,20). There is an interesting link in this potential application to the gold mining industry where peroxide is used to destroy cyanide waste.…”

Section: Chemical Processingmentioning

confidence: 99%

Commercial aspects of gold applications: From materials science to chemical science

Corti

Holliday

2004

Gold Bull

View full text Add to dashboard Cite

A major aim of the GOLD 2003 conference is to promote new gold related science and technology with a view to developing new useful industrial applications for gold. Current industrial uses have provided a steady annual demand for gold of around 350-400 tonnes in recent years, the bulk of which is centred on electronics applications, with dental uses constituting the second largest application. However, there is good reason to believe that whilst gold will continue to play a major role in these sectors in the future, substantial growth of demand is not anticipated. Increased industrial demand for gold is only likely to come through the emergence of new applications, probably most significantly in five broad market sectors: * Pollution and emission control technologies, including fuel cells. * New uses for gold in advanced electronics, electrical systems and devices. * Chemical processing of a range of bulk and speciality chemicals, using gold based catalysts. * Advanced coatings exploiting the novel properties of gold, particularly in nanoparticulate form. * New biomedical uses for gold including medical treatments, drugs, implants, sensors and devices. There is cause for optimism that many new applications for gold could emerge in these sectors over the next decade and that this will lead to a substantial growth in demand for gold. It is clear that many of these new opportunities will be based on a chemical approach to synthesis of useful products rather than what has historically been a materials or mechanical approach. To turn this expectation into reality requires sustained support of R & D and a determination to exploit this new science and technology into viable commercial applications.

show abstract

“…Gold metal catalysis has already been successfully used in gas phase reactions like the low temperature oxidation of CO (2,3), the acetylene hydrochlorination (4), the water-gas shift (5) and the epoxidation of propylene (6). Examples of liquid phase metallic gold catalyzed reactions are redox reactions such as the oxidation of alcohols and aldehydes (7)(8)(9), the hydrogenation of unsaturated ketones to allylic alcohols (10) and the synthesis of H 2 O 2 (11). Particularly in the liquid phase oxidation of 1,2-diols like 1,2-ethanediol and 1,2-propanediol, Prati and Rossi showed that gold is a suitable alternative for platinum group catalysts, because the surface of Au is not readily overoxidized and is hardly sensitive to chemical poisoning by acid adsorption (12).…”

Section: Introductionmentioning

confidence: 99%

Gold nanoclusters as colloidal catalysts for oxidation of long chain aliphatic 1,2-diols in alcohol solvents

et al. 2005

View full text Add to dashboard Cite

Long chain aliphatic 1,2-diols like 1,2-hexanediol and 1,2-octanediol can be converted to the corresponding ␣-hydroxy-alkanoates with total chemoselectivity, in an oxidation catalyzed by an aqueous gold sol under O 2 atmosphere. The sol is stabilized with poly(vinylalcohol), and the reaction is performed in alcohol solvents. Two methods are proposed for the efficient recycling of the colloidal Au catalyst. Firstly a solvent-resistant membrane filtration can be applied. As the membrane material, poly(dimethylsiloxane) is chosen. Secondly, in appropriate conditions, the reaction proceeds in the liquid biphasic mode, and the aqueous Au sol can be recycled by phase separation. Using either of both approaches, the colloidal stability and catalytic activity can be preserved over several recycles.

show abstract

Direct formation of hydrogen peroxide from H2/O2 using a gold catalyst

Abstract: Supported Au catalysts are very selective for the direct formation of hydrogen peroxide from H2/O2 mixtures at 2 degrees C; the rate of H2O2 synthesis is markedly increased if Au-Pd alloy nanoparticles are generated by the addition of Pd.

Cited by 502 publications

References 6 publications

New directions in gold catalysis

New directions in gold catalysis

Commercial aspects of gold applications: From materials science to chemical science

Gold nanoclusters as colloidal catalysts for oxidation of long chain aliphatic 1,2-diols in alcohol solvents

Contact Info

Product

Resources

About