Converting metals into phosphides

A general strategy for the synthesis of metal phosphide nanocrystals

Amanda E. Henkes, Yolanda Vasquez, Raymond Edward Schaak

Research output: Contribution to journalArticle

281 Citations (Scopus)

Abstract

Nanocrystals of metal phosphides, which can have useful catalytic, electronic, and magnetic properties, are known to be accessible by using trioctylphosphine (TOP) as a highly reactive phosphorus source. Here we report a general strategy for synthesizing transition metal phosphides, including those with 4d and 5d transition metals that have not previously been reported as unsupported nanocrystals. Unlike previously reported methods that involve direct decomposition of organometallic precursors, our method utilizes preformed metal nanoparticles as templates for generating metal phosphide nanocrystals. Metal nanoparticles are reacted with TOP in a hot solvent (290-360 °C) to form transition metal phosphides such as Ni2P, PtP2, Rh2P, PdP2, Pd5P2, and Au2P3. Furthermore, nanostructures such as hollow spheres can be easily made using a Kirkendall-type mechanism, which utilizes metal nanoparticles as reactive templates.

Original languageEnglish (US)
Pages (from-to)1896-1897
Number of pages2
JournalJournal of the American Chemical Society
Volume129
Issue number7
DOIs
StatePublished - Feb 21 2007

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Metal Nanoparticles
Metal nanoparticles
Nanocrystals
Transition metals
Metals
Organometallics
Electronic properties
Phosphorus
Nanostructures
Magnetic properties
Decomposition
Nanoparticles

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

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abstract = "Nanocrystals of metal phosphides, which can have useful catalytic, electronic, and magnetic properties, are known to be accessible by using trioctylphosphine (TOP) as a highly reactive phosphorus source. Here we report a general strategy for synthesizing transition metal phosphides, including those with 4d and 5d transition metals that have not previously been reported as unsupported nanocrystals. Unlike previously reported methods that involve direct decomposition of organometallic precursors, our method utilizes preformed metal nanoparticles as templates for generating metal phosphide nanocrystals. Metal nanoparticles are reacted with TOP in a hot solvent (290-360 °C) to form transition metal phosphides such as Ni2P, PtP2, Rh2P, PdP2, Pd5P2, and Au2P3. Furthermore, nanostructures such as hollow spheres can be easily made using a Kirkendall-type mechanism, which utilizes metal nanoparticles as reactive templates.",
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Converting metals into phosphides : A general strategy for the synthesis of metal phosphide nanocrystals. / Henkes, Amanda E.; Vasquez, Yolanda; Schaak, Raymond Edward.

In: Journal of the American Chemical Society, Vol. 129, No. 7, 21.02.2007, p. 1896-1897.

Research output: Contribution to journalArticle

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