Supramolecular Assembly of Gold Nanoparticles on Carbon Nanotubes: Application to the Catalytic Oxidation of Hydroxylamines

Shah, Nimesh; Basu, Pallabita; Prakash, Praveen; Donck, Simon; Gravel, Edmond; Namboothiri, Irishi N. N.; Doris, Eric

doi:10.3390/nano6030037

Cited by 11 publications

(7 citation statements)

References 32 publications

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“…Gold is a perfect example of a material that is inert in its massive form and highly active in the nanoscale form. In particular, gold nanoparticles are used to create catalysts for low-temperature oxidation of CO [1], for selective oxidative coupling of methanol to methyl formate [2], and for hydroxylamine oxidation [3]. Gold nanoparticles are also used as catalysts for selective isomerization of epoxides to allylic alcohols [4], for benzylation of aromatics [5], for the production of vinyl chloride and vinyl acetate monomers [6], and in some other substances.…”

Section: Introductionmentioning

confidence: 99%

Effect of Size on Hydrogen Adsorption on the Surface of Deposited Gold Nanoparticles

Гатин¹,

Grishin²,

Dokhlikova³

et al. 2019

Nanomaterials

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An experimental study of molecular hydrogen adsorption on single gold nanoparticles of various sizes deposited on the surface of highly oriented pyrolytic graphite (HOPG) was carried out by means of scanning tunneling microscopy and spectroscopy. The effect of size on the HOPG/Au system was established. Hydrogen was dissociatively chemisorbed on the surface of gold nanoparticles with an average size of 5–6 nanometers. An increase in the size of nanoparticles to 10 nm or more led to hydrogen chemisorption being inhibited and unable to be detected.

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Section: Introductionmentioning

confidence: 99%

Effect of Size on Hydrogen Adsorption on the Surface of Deposited Gold Nanoparticles

Гатин¹,

Grishin²,

Dokhlikova³

et al. 2019

Nanomaterials

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“…Acquiring the azoxy derivative 34 as the major product is a further proof of the formation of nitroso compound 32, being consequent to the well-known condensation of unreacted hydroxylamines with nitroso derivatives. 20,21 This process is initiated by nucleophilic attack of the hydroxylamine to the N atom of the nitroso compound, which is prevented starting from the hydrochloride 30, thus accounting for the high selectivity of the reaction in this case.…”

Section: Special Topic Syn Thesismentioning

confidence: 99%

On the Oxidation of Hydroxylamines with o-Iodoxybenzoic Acid (IBX)

2017

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o-Iodoxybenzoic acid (IBX) is confirmed as a powerful tool for the oxidation of hydroxylamines. The synthetic route is demonstrated as efficient and user friendly, and is exploited on various carbohydrate-derived N,N-disubstituted hydroxylamines (cyclic, acyclic, and functionalized ones), affording the corresponding nitrones in good yields and regioselectivity. N-Monosubstituted hydroxylamines revealed an interesting divergent behavior depending on the reaction conditions. While IBX oxidation in dimethyl sulfoxide at 45 °C furnished oximes as reported, the oxidation in dichloromethane at room temperature afforded efficiently the unusual corresponding nitroso dimers.

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“…Further, variety of heterogeneous catalytic systems viz. metal-free carbon nanomaterials, including fullerene, carbon nanotube (CNT), graphite, graphene and carbon nanodots, have been explored either as an efficient carbocatalyst or as a metal oxide support for various catalytic applications [10][11][12][13][14][15][16][17][18]. However, there is still a huge scope for the expansion of suitable catalysts that not only provide high activity and selectivity but also provide a greener route to economic development.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in the catalytic applications of GO/rGO for green organic synthesis

Sachdeva

2020

Green Processing and Synthesis

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Graphene is considered a promising catalyst candidate due to its 2D nature, single-atom thickness, zero bandgap and very high surface to volume ratio. Further, graphene oxide (GO) has been used as a catalytic support material for metal/metal oxide nanoparticles due to its tunable electrical properties. In addition, its high chemical stability and ultrahigh thermal conductivity may possibly promote high loading of catalytically active sites. This review article focuses on the recent progress in the catalytic applications of GO especially (i) as catalytic-support material (GO/reduced graphene oxide supported metal/metal oxide nanohybrids) for the green synthesis of biologically relevant molecules, (ii) for metal-free catalysis and (iii) for electrocatalysis, with special focus on graphene contribution to catalytic efficiency. The critical overview and future perspectives are also discussed.

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Supramolecular Assembly of Gold Nanoparticles on Carbon Nanotubes: Application to the Catalytic Oxidation of Hydroxylamines

Cited by 11 publications

References 32 publications

Effect of Size on Hydrogen Adsorption on the Surface of Deposited Gold Nanoparticles

Effect of Size on Hydrogen Adsorption on the Surface of Deposited Gold Nanoparticles

On the Oxidation of Hydroxylamines with o-Iodoxybenzoic Acid (IBX)

Recent advances in the catalytic applications of GO/rGO for green organic synthesis

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