M
Marco Antônio Schiavon
Researcher at Universidade Federal de São João del-Rei
Publications - 143
Citations - 2692
Marco Antônio Schiavon is an academic researcher from Universidade Federal de São João del-Rei. The author has contributed to research in topics: Photoluminescence & Quantum dot. The author has an hindex of 27, co-authored 130 publications receiving 2196 citations. Previous affiliations of Marco Antônio Schiavon include University of São Paulo & Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto.
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Investigation on kinetics of thermal decomposition in polysiloxane networks used as precursors of silicon oxycarbide glasses
TL;DR: In this paper, polysiloxane networks prepared by hydrosilylation or hydrolysis/condensation reactions were considered to be potential precursors for Si-C-O systems.
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Effect of surface ligands on the optical properties of aqueous soluble CdTe quantum dots
Fernanda O. Silva,Melissa S. Carvalho,Renato de Mendonça,Waldemar Aa Macedo,K. Balzuweit,Peter Reiss,Marco Antônio Schiavon +6 more
TL;DR: This work investigates systematically the influence of the nature of thiol-type capping ligands on the optical and structural properties of highly luminescent CdTe quantum dots synthesized in aqueous media, comparing mercaptopropionic acid, thioglycolic acid, 1-thioglycerol, and glutathione.
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Crystallization behavior of novel silicon boron oxycarbide glasses
TL;DR: In this article, high-temperature annealing led to the crystallization of nanosized β-SiC into an amorphous SiO2-based matrix.
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Novel poly(borosiloxane) precursors to amorphous SiBCO ceramics
TL;DR: In this paper, the authors synthesize poly(borosiloxanes), with a B/Si molar ratio of 0.2, by a dehydrogen coupling reaction of 1,3,5,7-tetramethyl-1, 3, 5, 7-tetracyclotetrasiloxane (D4H) oligomer and boric acid, B(OH)3, followed by a hydrosilylation reaction with D4H, which gave rise to boron and silicon oxycarbide glasses (SiBCO), by
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Mild oxidation of alkanes and toluene by tert-butylhydroperoxide catalyzed by an homogeneous and immobilized Mn(salen) complex
Tatiana C. O. Mac Leod,Marina V. Kirillova,Armando J. L. Pombeiro,Marco Antônio Schiavon,Marilda D. Assis +4 more
TL;DR: In this article, the toluene oxidation with t -BuO and alkylperoxyl (ROO) radicals was shown to proceed with participation of t-BuO, and the results showed that the reaction rate was significantly higher with the addition of various acids, namely nitric, pyrazine-2-carboxylic, acetic, benzoic and oxalic acids.