Preparation and Characterization of 4-Dimethylaminopyridine-Stabilized Palladium Nanoparticles

Flanagan, Keith A.; Sullivan, James A.; Müeller-Bunz, Helge

doi:10.1021/la7015897

Cited by 43 publications

(35 citation statements)

References 56 publications

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“…This selective H-D exchange of DMAP was previously confirmed using 1 H NMR, FTIR and high resolution mass spectrometry [21]. Figure 1(i) shows a 1 H NMR spectrum of a fresh dispersion and a dispersion which was held in D 2 O.…”

Section: Introductionsupporting

confidence: 64%

“…Recently, we have described the preparation and characterisation of a relatively monodisperse aqueous phase DMAP stabilised Pd nanoparticle dispersion [21]. This selective H-D exchange of DMAP was previously confirmed using 1 H NMR, FTIR and high resolution mass spectrometry [21].…”

Section: Introductionmentioning

confidence: 80%

“…As an aside, these particular nanoparticles are oxidation sensitive and do rapidly oxidise under atmospheric conditions to yield a Pd(II)DMAP complex [21,22].…”

Section: Comment [Kf2]mentioning

confidence: 99%

“…To facilitate the immobilisation of the Pd nanoparticles we employ a previous observation that the DMAP stabilising ligand can be easily removed from the Pd nanoparticles and replaced with a thiol ligand [21]. We have used this chemistry to immobilise the nanoparticles onto the thiol-modified MWCNTs.…”

Section: Introductionmentioning

confidence: 99%

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Selective H–D exchange catalysed by aqueous phase and immobilised Pd nanoparticles

Sullivan¹,

Flanagan²,

Hain³

2008

Catalysis Today

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Publication informationCatalysis Today, 139 (3): 154-160Publisher Elsevier Item record/more information http://hdl.handle.net/10197/4001 Publisher's statementThis is the author's version of a work that was accepted for publication in Catalysis Today. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Catalysis Today, 139 (3) We have studied the effect of several different variables on the rate of the selective H-D exchange activity for a model pyridine, i.e. 4-Dimethylaminopyridine (DMAP).These variables include temperature, nanoparticle aging, nanoparticle re-reduction with H 2 and nanoparticle immobilisation onto multi-walled carbon nanotubes (MWCNT). We have also extended the study to related pyridine containing molecules.

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Section: Introductionsupporting

confidence: 64%

Section: Introductionmentioning

confidence: 80%

“…As an aside, these particular nanoparticles are oxidation sensitive and do rapidly oxidise under atmospheric conditions to yield a Pd(II)DMAP complex [21,22].…”

Section: Comment [Kf2]mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Selective H–D exchange catalysed by aqueous phase and immobilised Pd nanoparticles

Sullivan¹,

Flanagan²,

Hain³

2008

Catalysis Today

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“…These were prepared in an aqueous phase using a variation on a method previously reported by this group for preparation of DMAP stabilised Pd nanoparticles [52]. This method is more environmentally friendly than the typical method used for preparation of Au/DMAP nanoparticles, first reported by Caruso [53] which involves toluene as a solvent and a phase transfer step.…”

Section: Introductionmentioning

confidence: 99%

Towards selective catalytic oxidations using in situ generated H2O2

O'Callaghan¹,

Sullivan²

2014

Applied Catalysis B: Environmental

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A series of Ti-modified mesoporous SiO 2 materials (SBA-15 and MCF) are prepared, characterised and used as catalysts in the selective epoxidation of a probe alkene (cyclohexene) using H 2 O 2 as an oxidising agent. Similarly, a series of mesoporous SiO 2 -supported monometallic and bimetallic DMAP-stabilized Au and Pd nanoparticles were prepared, characterised and used as catalysts in the production of H 2 O 2 from dilute H 2 (g) + O 2 (g) mixtures.The metallic nanoparticles were then supported on the Ti-modified mesoporous SiO 2 and these hybrid materials were characterised and their activities in the selective epoxidation of alkenes in the presence of H 2 (g) + O 2 (g) mixtures (where H 2 O 2 would be formed in situ) were studied. The bimetallic Au / Pd nanoparticles (which were most active in the production of H 2 O 2 from H 2 and O 2 )were not the most active or selective in the combined reaction. This was ascribed to the Pd component of the nanoparticles promoting hydrogenation of the probe alkene more rapidly than the formation of H 2 O 2 . The selectivity of Au nanoparticles in the presence of H 2 (g) + O 2 (g) was higher than that of the same catalysts in the presence of H 2 O 2 (aq).

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Investigations of Capping Agent Adsorption for Metal Nanoparticle Stabilization and the Formation of Anisotropic Gold Nanocrystals

Burgess

2017

Advances in Electrochemical Sciences and Engineering

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Preparation and Characterization of 4-Dimethylaminopyridine-Stabilized Palladium Nanoparticles

Cited by 43 publications

References 56 publications

Selective H–D exchange catalysed by aqueous phase and immobilised Pd nanoparticles

Selective H–D exchange catalysed by aqueous phase and immobilised Pd nanoparticles

Towards selective catalytic oxidations using in situ generated H2O2

Investigations of Capping Agent Adsorption for Metal Nanoparticle Stabilization and the Formation of Anisotropic Gold Nanocrystals

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