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Effect of different synthesis methods on the textural properties of calcium tun...
Alencar, Lorena Dariane da Silva; Lima, Naiara Arantes; Mesquita, Alexandre; Probst, Luiz Fernando Dias; Batalha, Daniel CarreiraCalcium tungstate (CaWO4) crystals were prepared by microwave-assisted hydrothermal (MAH) and polymeric precursor methods (PPM). These crystals were structurally characterized by X-ray diffraction (XRD), N2 adsorption, X-ray absorption near edge spectroscopy (XANES) and extended X-ray absorption fine structure (EXAFS) measurements. The morphology and size of these crystals were observed by field emission scanni...
Effect of different synthesis methods on the textural properties of calcium tun...
Da Silva Alencara, Lorena Dariane; Lima, Naiara Arantes; Mesquita, Alexandre [UNESP]; Probst, Luiz Fernando Dias; Batalha, Daniel CarreiraMade available in DSpace on 2018-12-11T17:20:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-01-01. Added 1 bitstream(s) on 2019-10-09T18:31:44Z : No. of bitstreams: 1 S1516-14392018000300037.pdf: 1978270 bytes, checksum: 13347cc24e2927c54c2c95e72ffb1d71 (MD5); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Fun...
Low temperature liquid phase catalytic oxidation of aniline promoted by niobium...
Ventura, Wellington Martins; Batalha, Daniel Carreira; Fajardo, Humberto Vieira; Taylor, Jason Guy; Marins, Natália Hadler; Noremberg, Bruno S.A microwave-assisted hydrothermal method was employed to synthesis Nb2O5 (niobium pentoxide) nanoparticles and the effects of synthesis conditions on the physical-chemical properties were evaluated. The catalytic activity of the prepared samples in the liquid phase oxidation of aniline with aqueous hydrogen peroxide as oxidizing agent was also studied. The nanoparticles showed hexagonal structure and rounded sh...
Preparation, characterization and catalytic application of Barium molybdate (Ba...
Alencar, Lorena Dariane da Silva; Mesquita, Alexandre; Feitosa, Carlos Alberto Carneiro; Balzer, Rosana; Probst, Luiz Fernando DiasBarium molybdate and Barium tungstate are important materials due their photoluminescent properties and they also have catalysis and photocatalysis applications. In this work, powders of these compounds were prepared by microwave-assisted hydrothermal (MAH) method and polymeric precursor method (PPM) and their structural and optical properties were studied. Furthermore, these materials were employed as solid ca...
Oxidação da anilina em fase líquida para obtenção de compostos com alto valor a...
Batalha, Daniel CarreiraPrograma de Pós-Graduação em Química. Departamento de Química, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto.; O desenvolvimento de novos catalisadores faz parte do cotidiano dos pesquisadores da comunidade catalítica. Este trabalho traz uma breve abordagem sobre a preparação de catalisadores heterogêneos a base de óxido de cério, produzidos pelo método dos precursores polimérico...