Micelle directed synthesis of polyoxometalate nanoparticles and their improved catalytic activity for the aerobic oxidation of sulfides

Galia Maayan, Ronit Popovitz-Biro, Ronny Neumann

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

Micelle directed polyoxometalate nanoparticles were synthesized by depositing H3+xPVxMo12-xO40 (x = 0, 2) by precipitation on micelles prepared from cesium dodecyl sulfate. The cryo-TEM image showed particles of about ∼10 nm roughly consistent with the particle size computed from an idealized model. HRTEM coupled with EELS imaging to map the distribution of the elements also supported the formation of micelle directed polyoxometalate nanoparticles. In the aerobic oxidation of various sulfides to sulfoxides and sulfones, the clustered polyoxometalate assemblies supported on hydrophilic silica showed significantly higher catalytic activity versus that of nonclustered assemblies.

Original languageEnglish
Pages (from-to)4968-4969
Number of pages2
JournalJournal of the American Chemical Society
Volume128
Issue number15
DOIs
Publication statusPublished - Apr 19 2006

Fingerprint

Micelles
Sulfides
Nanoparticles
Catalyst activity
Oxidation
Sulfoxides
Cesium
Sulfones
Electron energy loss spectroscopy
Particle Size
Silicon Dioxide
Particle size
Silica
Transmission electron microscopy
Imaging techniques
polyoxometalate I

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Micelle directed synthesis of polyoxometalate nanoparticles and their improved catalytic activity for the aerobic oxidation of sulfides. / Maayan, Galia; Popovitz-Biro, Ronit; Neumann, Ronny.

In: Journal of the American Chemical Society, Vol. 128, No. 15, 19.04.2006, p. 4968-4969.

Research output: Contribution to journalArticle

@article{e05f9b4a537e40d69426804d4e9080e3,
title = "Micelle directed synthesis of polyoxometalate nanoparticles and their improved catalytic activity for the aerobic oxidation of sulfides",
abstract = "Micelle directed polyoxometalate nanoparticles were synthesized by depositing H3+xPVxMo12-xO40 (x = 0, 2) by precipitation on micelles prepared from cesium dodecyl sulfate. The cryo-TEM image showed particles of about ∼10 nm roughly consistent with the particle size computed from an idealized model. HRTEM coupled with EELS imaging to map the distribution of the elements also supported the formation of micelle directed polyoxometalate nanoparticles. In the aerobic oxidation of various sulfides to sulfoxides and sulfones, the clustered polyoxometalate assemblies supported on hydrophilic silica showed significantly higher catalytic activity versus that of nonclustered assemblies.",
author = "Galia Maayan and Ronit Popovitz-Biro and Ronny Neumann",
year = "2006",
month = "4",
day = "19",
doi = "10.1021/ja060696h",
language = "English",
volume = "128",
pages = "4968--4969",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "15",

}

TY - JOUR

T1 - Micelle directed synthesis of polyoxometalate nanoparticles and their improved catalytic activity for the aerobic oxidation of sulfides

AU - Maayan, Galia

AU - Popovitz-Biro, Ronit

AU - Neumann, Ronny

PY - 2006/4/19

Y1 - 2006/4/19

N2 - Micelle directed polyoxometalate nanoparticles were synthesized by depositing H3+xPVxMo12-xO40 (x = 0, 2) by precipitation on micelles prepared from cesium dodecyl sulfate. The cryo-TEM image showed particles of about ∼10 nm roughly consistent with the particle size computed from an idealized model. HRTEM coupled with EELS imaging to map the distribution of the elements also supported the formation of micelle directed polyoxometalate nanoparticles. In the aerobic oxidation of various sulfides to sulfoxides and sulfones, the clustered polyoxometalate assemblies supported on hydrophilic silica showed significantly higher catalytic activity versus that of nonclustered assemblies.

AB - Micelle directed polyoxometalate nanoparticles were synthesized by depositing H3+xPVxMo12-xO40 (x = 0, 2) by precipitation on micelles prepared from cesium dodecyl sulfate. The cryo-TEM image showed particles of about ∼10 nm roughly consistent with the particle size computed from an idealized model. HRTEM coupled with EELS imaging to map the distribution of the elements also supported the formation of micelle directed polyoxometalate nanoparticles. In the aerobic oxidation of various sulfides to sulfoxides and sulfones, the clustered polyoxometalate assemblies supported on hydrophilic silica showed significantly higher catalytic activity versus that of nonclustered assemblies.

UR - http://www.scopus.com/inward/record.url?scp=33646134411&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33646134411&partnerID=8YFLogxK

U2 - 10.1021/ja060696h

DO - 10.1021/ja060696h

M3 - Article

C2 - 16608327

AN - SCOPUS:33646134411

VL - 128

SP - 4968

EP - 4969

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 15

ER -