dc.contributorLuciano Andrey Montoro
dc.contributorhttp://lattes.cnpq.br/7289431894313268
dc.contributorGeraldo Magela de Lima
dc.contributorJairo Tronto
dc.contributorAndré Luiz dos Santos
dc.contributorTulio Matencio
dc.contributorAna Paula de Carvalho Teixeira
dc.creatorDemétrio Abreu Sena Costa
dc.date.accessioned2019-10-26T00:12:03Z
dc.date.accessioned2022-10-03T22:34:21Z
dc.date.available2019-10-26T00:12:03Z
dc.date.available2022-10-03T22:34:21Z
dc.date.created2019-10-26T00:12:03Z
dc.date.issued2019-07-12
dc.identifierhttp://hdl.handle.net/1843/30711
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3805591
dc.description.abstractThis work was based on the development of a fast and an ultra-fast synthetic methods with high rate kinetics where some cathodic materials of the lithium manganese oxide class, LixMnyOz, and of the sodium carbonate phosphate class, Na3MCO3PO4, as Sidorenkite like structures, Na3MnCO3PO4, had their synthesis applied and optimized in the solvothermal microwave assisted method. They were characterized and studied as insertion cathodic materials in aqueous media. Through this microwave assisted solvothermal method the unpublished R-3m lithium rich Li[Li0,145Mn0,855]O2 disposed as a lamellar phase was synthesized. At the very first time was announced the achievement of a lamellar lithium rich phase where there is only manganese as the transition metal. This fact can be considered an effort to fulfill the lack of new applicable lithium compounds in the energy storage market. This method has produced some materials with an interesting range of morphologies, two of them are unpublished for the Na3MCO3PO4 compounds yet, case of the hexagonal Na3CoCO3PO4 nano plates and the Na3NiCO3PO4 star fruit like micro particles. As well as for the LixMnyOz compounds that have showed very tiny particles with grains smaller than 10 nm. The Li[Li0,145Mn0,855]O2 has been able to reach a discharge capacity of 160 mA.h/g. While the Na3MnCO3PO4 synthesized for only 5 processing minutes has showed an electrochemical performance similar to the as one made with 30 processing minutes. Both of one retains discharges capacities around 60 mA.h/g after third complete charge/discharge cycles.
dc.publisherUniversidade Federal de Minas Gerais
dc.publisherBrasil
dc.publisherICX - DEPARTAMENTO DE QUÍMICA
dc.publisherPrograma de Pós-Graduação em Química
dc.publisherUFMG
dc.rightsAcesso Aberto
dc.subjectMicro-ondas
dc.subjectSíntese solvotérmica
dc.subjectÓxidos de manganês lítio
dc.subjectCarbonato fosfato de sódio
dc.subjectBaterias de inserção iônica
dc.subjectMicrowave assisted method
dc.subjectSolvothermal reactions
dc.subjectLithium manganese oxides
dc.subjectSodium carbonate phosphates
dc.subjectIonic insertion batteries
dc.titleDesenvolvimento e estudo de óxidos de manganês lítio e carbonatos fosfatos obtidos por métodos solvotérmicos assistidos por micro-ondas para aplicação em baterias recarregáveis
dc.typeTese


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