Monometallic Supported Gold Catalysts in Organic Transformations: Ring Making and Ring Breaking

Csankó, Krisztián; Sipos, Pál; Pálinkó, István

doi:10.3390/catal2010101

Cited by 3 publications

(1 citation statement)

References 50 publications

(73 reference statements)

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“…A comprehensive survey of the different methods available for preparing active gold catalysts on oxide supports has been reported by Prati [4]. The activity of gold catalysts in organic transformations was, finally, addressed by Pá linkó and coworkers [5] in the fifth review of the issue. Besides the most frequently studied CO oxidation, this work describes recent application of supported gold catalysts in the epoxidation of different olefinic compounds, such as ethylene, propylene, styrene, stilbene and cycloctene.…”

Section: The Present Issuementioning

confidence: 99%

New Frontiers in Gold Catalyzed Reactions

Liotta

2012

Catalysts

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BackgroundFor many years, gold has been regarded as a poor catalyst due to its chemical inertness towards reactive molecules such as oxygen and hydrogen. The interest in using gold in catalysis has increased during the last 20 years, since Haruta reported the surprisingly high activity in CO oxidation at low temperature for small (3-5 nm) gold particles supported on various oxides.Since then, gold nanostructured catalysts have attracted, rapidly growing attention, due to their potential applicability in various reactions of industrial and environment interest. The catalytic applications of gold have been, indeed, explored in several processes, such as NO removal, catalytic combustion of Volatile Organic Compound (VOC), hydrotreatment and chemical processing, and purification of hydrogen for fuel cell applications. Moreover, gold catalysts are, nowadays, employed as air-cleaning devices, for respiratory protection (gas masks), as sensors to detect individual poisonous or flammable gases, as well as deodorizers. Gold catalysts with low-temperature activity towards CO and hydrocarbons oxidation are suitable also for vehicles exhaust gas treatment, especially during the cold start period. Accordingly, at the end of 2007 the company Nanostellar announced the development of a diesel exhaust catalyst using a first catalytic component based on gold alloyed with palladium as the active component for CO oxidation. Nevertheless, despite the extensive recent efforts addressing the extraordinary catalytic behavior of gold nanoparticles, the attainment of the best performing supported gold catalyst is still a challenge and the origin of the structure sensitivity of Au catalytic activity is yet to be completely unravelled. The main reason for this is ascribed to the multiplicity of factors influencing the catalytic activity, including the size of the Au clusters, the oxidation state of gold, the nature of the support material, the Au-support interface, and the preparation method. The catalytic performances of gold nanoparticles have been correlated, in turn, with electronic (quantum size effect, oxidation state), structural and support (defects, perimeter interface) effects, but a OPEN ACCESS

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Section: The Present Issuementioning

confidence: 99%

New Frontiers in Gold Catalyzed Reactions

Liotta

2012

Catalysts

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The catalytic epoxidation of 2-cyclohexen-1-one over uncalcined layered double hydroxides using various solvents

et al. 2015

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Copper Nanoparticle Catalysed Aerobic Oxidation of α-pinene

Masruri

Pamungkas

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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A green aerobic-oxidation of alpha-pinene using air and catalyzed by copper nanoparticle (CuNP) was studied. The study involved preparation and characterization of copper nanoparticle with three different calcination temperatures (300, 500 and 800°C). Nanoparticle characterization was conducted using FTIR spectrophotometry and SEM-EDX analysis. Evaluation of the catalytic activity was done using direct air-bubbled to the alpha-pinene with and without catalyst. It was found that oxidized alpha-pinene was formed as the major product.

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Monometallic Supported Gold Catalysts in Organic Transformations: Ring Making and Ring Breaking

Cited by 3 publications

References 50 publications

New Frontiers in Gold Catalyzed Reactions

New Frontiers in Gold Catalyzed Reactions

The catalytic epoxidation of 2-cyclohexen-1-one over uncalcined layered double hydroxides using various solvents

Copper Nanoparticle Catalysed Aerobic Oxidation of α-pinene

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