%0 Journal Article %T Low temperature in situ formation of cobalt in silicon nitride toward functional nitride nanocomposites † %+ IRCER - Axe 4 : céramiques sous contraintes environnementales (IRCER-AXE4) %A Tada, Shotaro %A Mallmann, Maira Debarba %A Takagi, Haruna %A Iihama, Junya %A Asakuma, Norifumi %A Asaka, Toru %A Daiko, Yusuke %A Honda, Sawao %A Nishihora, Rafael Kenji %A Machado, Ricardo Antonio Francisco %A Bernard, Samuel %A Iwamoto, Yuji %< avec comité de lecture %@ 1359-7345 %J Chemical Communications %I Royal Society of Chemistry %V 57 %N 16 %P 2057-2060 %8 2021-02-25 %D 2021 %R 10.1039/d0cc07366k %Z Chemical SciencesJournal articles %X 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 8C 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 8C). %G English %2 https://cnrs.hal.science/hal-03157706/document %2 https://cnrs.hal.science/hal-03157706/file/ChemCommunSBernardversionHal.pdf %L hal-03157706 %U https://cnrs.hal.science/hal-03157706 %~ UNILIM %~ CNRS %~ SPCTS %~ IPAM %~ SPCTS-AXE4 %~ INC-CNRS %~ IRCER %~ IRCER-AXE4 %~ IMPEO %~ TEST2-HALCNRS