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Nonclassical Crystallization and Size Control of Ultra-Small MoO2 Nanoparticles in Water

Abstract : Size tuning for MoO2 nanoparticles is demonstrated for the first time over a wide range 2-100 nm, through a colloidal route into water. A nucleation-growth mechanism based on oriented attachment is evidenced to rationalize the impact of two simple synthetic levers: reactant ratio and temperature. The smallest non-aggregated crystalline MoO2 nanoparticles are reported, with specific surface area reaching 86 m(2) g(-1). Size and morphology control, along with the ability to produce, non-aggregated ultra-small MoO2 particles are important for a wide range of applications, such as catalysis and energy storage. To exemplify the importance of size tuning, the impact of downscaling on the electrochemical properties in Li-ion batteries is investigated.
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https://hal.archives-ouvertes.fr/hal-01289915
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Submitted on : Thursday, March 17, 2016 - 2:15:46 PM
Last modification on : Thursday, September 24, 2020 - 11:28:02 AM

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Julie Besnardiere, Christine Surcin, Valerie Buissette, Thierry Le Mercier, Mathieu Morcrette, et al.. Nonclassical Crystallization and Size Control of Ultra-Small MoO2 Nanoparticles in Water. Particle and Particle Systems Characterization, Wiley-VCH Verlag, 2015, 32 (2), pp.251-257. ⟨10.1002/ppsc.201400157⟩. ⟨hal-01289915⟩

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