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Silver Halide Colloid Precursors for the Synthesis of Monolayer-Protected Clusters

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Silver Halide Colloid Precursors for the Synthesis of Monolayer-Protected Clusters. / Lahtinen, R.M.; Mertens, S.F.L.; East, E. et al.
In: Langmuir, Vol. 20, No. 8, 2004, p. 3289-3296.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Lahtinen, RM, Mertens, SFL, East, E, Kiely, CJ & Schiffrin, DJ 2004, 'Silver Halide Colloid Precursors for the Synthesis of Monolayer-Protected Clusters', Langmuir, vol. 20, no. 8, pp. 3289-3296. https://doi.org/10.1021/la036145b

APA

Lahtinen, R. M., Mertens, S. F. L., East, E., Kiely, C. J., & Schiffrin, D. J. (2004). Silver Halide Colloid Precursors for the Synthesis of Monolayer-Protected Clusters. Langmuir, 20(8), 3289-3296. https://doi.org/10.1021/la036145b

Vancouver

Lahtinen RM, Mertens SFL, East E, Kiely CJ, Schiffrin DJ. Silver Halide Colloid Precursors for the Synthesis of Monolayer-Protected Clusters. Langmuir. 2004;20(8):3289-3296. doi: 10.1021/la036145b

Author

Lahtinen, R.M. ; Mertens, S.F.L. ; East, E. et al. / Silver Halide Colloid Precursors for the Synthesis of Monolayer-Protected Clusters. In: Langmuir. 2004 ; Vol. 20, No. 8. pp. 3289-3296.

Bibtex

@article{a719e89afacd446c9629273bb2ba8d6d,
title = "Silver Halide Colloid Precursors for the Synthesis of Monolayer-Protected Clusters",
abstract = "A new method for the synthesis of monolayer-protected silver clusters (MPCs) based on the two-phase reduction of a stable negatively charged silver bromide sol is described. Phase transfer of the colloid to toluene is accomplished using tetra-n-octylammonium bromide as the phase transfer reagent. The advantage of this synthesis is to uncouple the formation of the silver halide colloid from its transfer and reduction in the organic phase, thus allowing control over each reaction step. The silver colloid in toluene was reduced with aqueous borohydride in the presence of 4-bromobenzenethiol as the passivating agent. The UV-visible absorption spectra indicate the intermediate formation of Ag coreAgBr shell clusters during reduction. The resulting MPCs have been characterized by optical and transmission electron microscopy, energy-dispersive X-ray analysis, thermogravimetry, and UV-vis absorption spectroscopy. The formation of spiral cracks in the nanoparticulate agglomerates on solvent evaporation was observed. The spectra of thin films obtained by solvent evaporation have been analyzed using an effective medium theory.",
keywords = "Capping agents, Electron confinement, Ligand shells, Monolayer protected clusters (MPC), Absorption spectroscopy, Colloids, Energy dispersive spectroscopy, Monolayers, Nanostructured materials, Reduction, Synthesis (chemical), Transmission electron microscopy, Ultraviolet spectroscopy, Silver compounds, Silver Compounds, Synthesis, Transmission Electron Microscopy, Ultraviolet Spectroscopy",
author = "R.M. Lahtinen and S.F.L. Mertens and E. East and C.J. Kiely and D.J. Schiffrin",
year = "2004",
doi = "10.1021/la036145b",
language = "English",
volume = "20",
pages = "3289--3296",
journal = "Langmuir",
issn = "0743-7463",
publisher = "AMER CHEMICAL SOC",
number = "8",

}

RIS

TY - JOUR

T1 - Silver Halide Colloid Precursors for the Synthesis of Monolayer-Protected Clusters

AU - Lahtinen, R.M.

AU - Mertens, S.F.L.

AU - East, E.

AU - Kiely, C.J.

AU - Schiffrin, D.J.

PY - 2004

Y1 - 2004

N2 - A new method for the synthesis of monolayer-protected silver clusters (MPCs) based on the two-phase reduction of a stable negatively charged silver bromide sol is described. Phase transfer of the colloid to toluene is accomplished using tetra-n-octylammonium bromide as the phase transfer reagent. The advantage of this synthesis is to uncouple the formation of the silver halide colloid from its transfer and reduction in the organic phase, thus allowing control over each reaction step. The silver colloid in toluene was reduced with aqueous borohydride in the presence of 4-bromobenzenethiol as the passivating agent. The UV-visible absorption spectra indicate the intermediate formation of Ag coreAgBr shell clusters during reduction. The resulting MPCs have been characterized by optical and transmission electron microscopy, energy-dispersive X-ray analysis, thermogravimetry, and UV-vis absorption spectroscopy. The formation of spiral cracks in the nanoparticulate agglomerates on solvent evaporation was observed. The spectra of thin films obtained by solvent evaporation have been analyzed using an effective medium theory.

AB - A new method for the synthesis of monolayer-protected silver clusters (MPCs) based on the two-phase reduction of a stable negatively charged silver bromide sol is described. Phase transfer of the colloid to toluene is accomplished using tetra-n-octylammonium bromide as the phase transfer reagent. The advantage of this synthesis is to uncouple the formation of the silver halide colloid from its transfer and reduction in the organic phase, thus allowing control over each reaction step. The silver colloid in toluene was reduced with aqueous borohydride in the presence of 4-bromobenzenethiol as the passivating agent. The UV-visible absorption spectra indicate the intermediate formation of Ag coreAgBr shell clusters during reduction. The resulting MPCs have been characterized by optical and transmission electron microscopy, energy-dispersive X-ray analysis, thermogravimetry, and UV-vis absorption spectroscopy. The formation of spiral cracks in the nanoparticulate agglomerates on solvent evaporation was observed. The spectra of thin films obtained by solvent evaporation have been analyzed using an effective medium theory.

KW - Capping agents

KW - Electron confinement

KW - Ligand shells

KW - Monolayer protected clusters (MPC)

KW - Absorption spectroscopy

KW - Colloids

KW - Energy dispersive spectroscopy

KW - Monolayers

KW - Nanostructured materials

KW - Reduction

KW - Synthesis (chemical)

KW - Transmission electron microscopy

KW - Ultraviolet spectroscopy

KW - Silver compounds

KW - Silver Compounds

KW - Synthesis

KW - Transmission Electron Microscopy

KW - Ultraviolet Spectroscopy

U2 - 10.1021/la036145b

DO - 10.1021/la036145b

M3 - Journal article

VL - 20

SP - 3289

EP - 3296

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 8

ER -