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Issue 16, 2021
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Low temperature in situ formation of cobalt in silicon nitride toward functional nitride nanocomposites

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Abstract

This work highlights the first demonstration of a low-temperature in situ formation of Co nanocrystallites embedded within an amorphous silicon nitride matrix through careful control of the chemistry behind material design using perhydropolysilazane (PHPS) as a Si3N4 precursor further coordinated with CoCl2 and ammonia as a pyrolysis atmosphere. The Co nucleation was allowed to proceed at temperatures as low as 400 °C via thermal decomposition of Co2N pre-formed in situ by the reaction of CoCl2 with the Si centers of PHPS at the early stage of pyrolysis (220–350 °C).

Graphical abstract: Low temperature in situ formation of cobalt in silicon nitride toward functional nitride nanocomposites

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Supplementary files

Article information


Submitted
09 Nov 2020
Accepted
21 Jan 2021
First published
21 Jan 2021

Chem. Commun., 2021,57, 2057-2060
Article type
Communication

Low temperature in situ formation of cobalt in silicon nitride toward functional nitride nanocomposites

S. Tada, M. D. Mallmann, H. Takagi, J. Iihama, N. Asakuma, T. Asaka, Y. Daiko, S. Honda, R. K. Nishihora, R. A. F. Machado, S. Bernard and Y. Iwamoto, Chem. Commun., 2021, 57, 2057
DOI: 10.1039/D0CC07366K

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