Dialkyl sulfides: novel passivating agents for gold nanoparticles

Elwyn J. Shelley, Declan Ryan, Simon R. Johnson, Martin Couillard, Donald Fitzmaurice, Peter D. Nellist, Yu Chen, Richard E. Palmer, Jon A. Preece

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

Gold nanoparticles passivated with symmetrical and unsymmetrical dialkyl sulfides (H21C10SC10H21 and H37C18SC10H21) have been synthesized via the borohydride reduction of HAuCl4 and characterized by H-1 NMR, FTIR, UV-vis, Auger Electron, XPS spectroscopies, and TEM. Under equivalent conditions of formation, the size and polydispersity of the gold cores obtained was greater for dialkyl sulfide ligands (d(C10SC10) = 5.3 +/- 0.8 nm; d(C18SC10) = 6.3 +/- 1.1 nm) than alkanethiol ligands (d(C10H22SH) = 2.2 +/- 0.1 nm). Edge-edge interparticle spacing of 2-D arrays of the nanoparticles is found to be dependent on the length of the longest alkyl chain passivating the nanoparticles and is independent of the asymmetry of the alkyl chains in the dialkyl sulfide.

LanguageEnglish
Pages1791-1795
Number of pages5
JournalLangmuir
Volume18
Issue number5
DOIs
Publication statusPublished - 5 Mar 2002

Fingerprint

Sulfides
Gold
sulfides
gold
Nanoparticles
nanoparticles
Ligands
Borohydrides
ligands
borohydrides
Polydispersity
electron spectroscopy
X ray photoelectron spectroscopy
spacing
Nuclear magnetic resonance
asymmetry
Spectroscopy
Transmission electron microscopy
nuclear magnetic resonance
transmission electron microscopy

Keywords

  • self-assembled monolayers
  • heterosupramolecular chemistry
  • nanocrystal superlattices
  • silver
  • adsorption
  • surface
  • AU(111)
  • interdigiation
  • organization
  • alkanethiols

Cite this

Shelley, E. J., Ryan, D., Johnson, S. R., Couillard, M., Fitzmaurice, D., Nellist, P. D., ... Preece, J. A. (2002). Dialkyl sulfides: novel passivating agents for gold nanoparticles. Langmuir, 18(5), 1791-1795. https://doi.org/10.1021/la0109260
Shelley, Elwyn J. ; Ryan, Declan ; Johnson, Simon R. ; Couillard, Martin ; Fitzmaurice, Donald ; Nellist, Peter D. ; Chen, Yu ; Palmer, Richard E. ; Preece, Jon A. / Dialkyl sulfides : novel passivating agents for gold nanoparticles. In: Langmuir. 2002 ; Vol. 18, No. 5. pp. 1791-1795.
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Shelley, EJ, Ryan, D, Johnson, SR, Couillard, M, Fitzmaurice, D, Nellist, PD, Chen, Y, Palmer, RE & Preece, JA 2002, 'Dialkyl sulfides: novel passivating agents for gold nanoparticles' Langmuir, vol. 18, no. 5, pp. 1791-1795. https://doi.org/10.1021/la0109260

Dialkyl sulfides : novel passivating agents for gold nanoparticles. / Shelley, Elwyn J. ; Ryan, Declan; Johnson, Simon R. ; Couillard, Martin; Fitzmaurice, Donald; Nellist, Peter D.; Chen, Yu; Palmer, Richard E.; Preece, Jon A.

In: Langmuir, Vol. 18, No. 5, 05.03.2002, p. 1791-1795.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Dialkyl sulfides

T2 - Langmuir

AU - Shelley, Elwyn J.

AU - Ryan, Declan

AU - Johnson, Simon R.

AU - Couillard, Martin

AU - Fitzmaurice, Donald

AU - Nellist, Peter D.

AU - Chen, Yu

AU - Palmer, Richard E.

AU - Preece, Jon A.

PY - 2002/3/5

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N2 - Gold nanoparticles passivated with symmetrical and unsymmetrical dialkyl sulfides (H21C10SC10H21 and H37C18SC10H21) have been synthesized via the borohydride reduction of HAuCl4 and characterized by H-1 NMR, FTIR, UV-vis, Auger Electron, XPS spectroscopies, and TEM. Under equivalent conditions of formation, the size and polydispersity of the gold cores obtained was greater for dialkyl sulfide ligands (d(C10SC10) = 5.3 +/- 0.8 nm; d(C18SC10) = 6.3 +/- 1.1 nm) than alkanethiol ligands (d(C10H22SH) = 2.2 +/- 0.1 nm). Edge-edge interparticle spacing of 2-D arrays of the nanoparticles is found to be dependent on the length of the longest alkyl chain passivating the nanoparticles and is independent of the asymmetry of the alkyl chains in the dialkyl sulfide.

AB - Gold nanoparticles passivated with symmetrical and unsymmetrical dialkyl sulfides (H21C10SC10H21 and H37C18SC10H21) have been synthesized via the borohydride reduction of HAuCl4 and characterized by H-1 NMR, FTIR, UV-vis, Auger Electron, XPS spectroscopies, and TEM. Under equivalent conditions of formation, the size and polydispersity of the gold cores obtained was greater for dialkyl sulfide ligands (d(C10SC10) = 5.3 +/- 0.8 nm; d(C18SC10) = 6.3 +/- 1.1 nm) than alkanethiol ligands (d(C10H22SH) = 2.2 +/- 0.1 nm). Edge-edge interparticle spacing of 2-D arrays of the nanoparticles is found to be dependent on the length of the longest alkyl chain passivating the nanoparticles and is independent of the asymmetry of the alkyl chains in the dialkyl sulfide.

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KW - heterosupramolecular chemistry

KW - nanocrystal superlattices

KW - silver

KW - adsorption

KW - surface

KW - AU(111)

KW - interdigiation

KW - organization

KW - alkanethiols

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Shelley EJ, Ryan D, Johnson SR, Couillard M, Fitzmaurice D, Nellist PD et al. Dialkyl sulfides: novel passivating agents for gold nanoparticles. Langmuir. 2002 Mar 5;18(5):1791-1795. https://doi.org/10.1021/la0109260