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Nelly Batail, Isabelle Clémençon, Christelle Legens, Alexandra Chaumonnot and Denis Uzio Controlled Synthesis and High Oxidation Stability of Cobalt Nanoparticles Encapsulated in Mesoporous Silica using a Modified Stöber Approach and a Pseudomorphic Transformation European Journal of Inorganic Chemistry 2013

Article first published online: 28 JAN 2013 | DOI: 10.1002/ejic.201201429

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An in situ XRD study conducted in air on Co@m-SiO2 revealed that this solid is stable under ambient conditions and resistant towards oxidation up to 450 °C. Moreover, the core@shell morphology is preserved even at 700 °C in air, which shows the stabilization effect and sintering resistance of this type of structure. Thus, this new material can be handled in air and used in applications where nanoparticle sintering is a key point.

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