Synthesis of carbon encapsulated nanocrystals of WP by reacting W(CO) 6 with triphenylphosphine at elevated temperature under autogenic pressure

P. P. George, V. G. Pol, A. Gedanken

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

The thermal decomposition of a reaction mixture containing W(CO) 6 and PPh3 yielded carbon encapsulated nanocrystals of tungsten monophosphide (WP). This reaction was carried out using the RAPET technique (reaction under autogenic pressure at elevated temperature) at 850°C under inert (N2) atmosphere. Carbon nanostructures of ∼100-300 nm encapsulated several 30 nm WP nanocrystallites, as evidenced by HRTEM (high resolution transmission electron microscopy). The reaction mechanism for the formation of WP encapsulated in carbon nanostructures is suggested on the basis of morphological, structural, and surface characterization data.

Original languageEnglish
Pages (from-to)1187-1193
Number of pages7
JournalJournal of Nanoparticle Research
Volume9
Issue number6
DOIs
StatePublished - Dec 2007

Bibliographical note

Funding Information:
P. P. George thank the Bar-Ilan Research Authority for a post-doctoral fellowship.

Funding Information:
A. Gedanken thanks the Israeli Ministry of Science, Sport and Technology for an Infrastructure grant.

Funding

P. P. George thank the Bar-Ilan Research Authority for a post-doctoral fellowship. A. Gedanken thanks the Israeli Ministry of Science, Sport and Technology for an Infrastructure grant.

FundersFunder number
Bar-Ilan Research Authority
Israeli Ministry of Science, Sport and Technology

    Keywords

    • Carbon nanostructures
    • Carbon spherules
    • Nanoengineering
    • RAPET technique
    • WP nanocrystals

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