Metal Nanoclusters: Electronic Aspects and Physico-Chemical Characterization

Guczi, L.; Pászti, Zoltán; Pet, Gábor

doi:10.1016/b978-044453057-8.50006-4

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Silver Nanoparticle Synthesis1

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Cited by 2 publications

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“…Silver nanoparticles (Ag-NPs) are of major interest for a manifold of applications, such as photovoltaics 41 , biological 42 -and chemical catalysis 43 due to their unique optical 44 , chemical 45 and electronical 46 properties. Consequently, the synthesis of Ag-NPs in continuous flow is an area of high interest.…”

Section: Silver Nanoparticle Synthesismentioning

confidence: 99%

Advanced reactor engineering with 3D printing for the continuous-flow synthesis of silver nanoparticles

et al. 2017

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Section: Silver Nanoparticle Synthesismentioning

confidence: 99%

Advanced reactor engineering with 3D printing for the continuous-flow synthesis of silver nanoparticles

et al. 2017

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Catalytic Consequences of Particle Size and Chloride Promotion in the Ring-Opening of Cyclopentane on Pt/Al₂O₃

et al. 2013

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Ring-opening of cyclopentane on alumina-supported Pt particles was studied as a function of Pt particle size in the presence of different Cl contents. With catalysts prepared from a Cl-free precursor, measured turnover rates increased monotonically with increasing Pt particle size (1–15 nm). On catalysts derived from a Cl-containing precursor, the turnover rates fell into two separate trends with the change of Pt particle size, depending on the extent of Cl removal by increasing thermal treatment temperature. In both cases, catalytic activity increased with increasing particle size in the examined ranges of dispersions (D = 0.7–1.0 and 0–0.6) and for both series of catalysts, the apparent activation energies were higher on large Pt particles than on small ones, with only small differences in the reaction orders for H2 and cyclopentane on particles of widely varying average sizes. Therefore, the effect of particle size on the turnover rates stems mainly from intrinsic rate constants, rather than from coverage effects. The relative adsorption coefficients of toluene and benzene indicated lower electron densities at the surface Pt atoms in the catalysts prepared from the Cl-containing precursor than in those from the Cl-free precursor. This subtle electron deficiency, which seems not to stem from the local Cl enrichment near Pt, affects both the concentration of chemisorbed hydrogen under reaction conditions and the barrier for C–C bond cleavage. The Cl postintroduced to the catalyst, in contrast, does not induce a similarly positive effect.

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Metal Nanoclusters: Electronic Aspects and Physico-Chemical Characterization

Cited by 2 publications

References 205 publications

Advanced reactor engineering with 3D printing for the continuous-flow synthesis of silver nanoparticles

Advanced reactor engineering with 3D printing for the continuous-flow synthesis of silver nanoparticles

Catalytic Consequences of Particle Size and Chloride Promotion in the Ring-Opening of Cyclopentane on Pt/Al₂O₃

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Metal Nanoclusters: Electronic Aspects and Physico-Chemical Characterization

Cited by 2 publications

References 205 publications

Advanced reactor engineering with 3D printing for the continuous-flow synthesis of silver nanoparticles

Advanced reactor engineering with 3D printing for the continuous-flow synthesis of silver nanoparticles

Catalytic Consequences of Particle Size and Chloride Promotion in the Ring-Opening of Cyclopentane on Pt/Al2O3

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Catalytic Consequences of Particle Size and Chloride Promotion in the Ring-Opening of Cyclopentane on Pt/Al₂O₃