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In Situ Synthesis of Nanostructured WC ‐ C o Within Silica Gel Matrix
Author(s) -
Thakur Arpita Dalapati,
Ghosh Chaudhuri Mahua,
Das Gopes C.,
Dey Rajib,
Mitra Manoj K.,
Mukherjee Siddhartha
Publication year - 2013
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12048
Subject(s) - materials science , cobalt , high resolution transmission electron microscopy , scanning electron microscope , tungsten carbide , transmission electron microscopy , tungstic acid , nanoparticle , nuclear chemistry , tungsten , chemical engineering , analytical chemistry (journal) , nanotechnology , composite material , metallurgy , chemistry , chromatography , engineering
In situ reduction of tungstic acid and cobalt chloride by dextrose in silica gel resulted in co‐deposition of tungsten carbide‐cobalt ( WC – C o) nanoparticles with different proportions of cobalt (5–15 wt % of WC ). X ‐ray powder diffraction ( XRD ), high‐resolution transmission electron microscopy ( HRTEM ), scanning electron microscopy ( SEM ) and F ourier‐transform infrared ( FT ‐ IR ) spectroscopy have been used for characterizing these nanoparticles. WC ‐ C o aggregates of 25–30 nm size have been achieved, successfully.