A feasible and clean solid-phase synthesis of LiNbO3 by microwave-induced combustion and its application as catalyst for low temperature aniline oxidation

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dc.creatorNeftali Lenin Villarreal Carreño
dc.creatorHumberto Vieira Fajardo
dc.creatorMárcia Foster Mesko
dc.creatorVinícius Gonçalves Deon
dc.creatorRicardo Marques Silva
dc.creatorLuiza Ribeiro Santana
dc.creatorRodrigo Mendes Pereira
dc.creatorMarcelo Ornaghi Orlandi
dc.creatorWellington Martins Ventura
dc.creatorAnderson Dias
dc.creatorJason Guy Taylor
dc.date.accessioned2023-08-25T19:16:01Z
dc.date.accessioned2025-09-08T23:52:17Z
dc.date.available2023-08-25T19:16:01Z
dc.date.issued2018
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.1021/acssuschemeng.7b02921
dc.identifier.issn2168-0485
dc.identifier.urihttps://hdl.handle.net/1843/58262
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofACS Sustainable Chemistry & Engineering
dc.rightsAcesso Restrito
dc.subjectNióbio
dc.subjectAnilina
dc.subjectCatalisadores
dc.subjectCelulose
dc.subjectOxidação
dc.subjectRaios X - Difração
dc.subjectÁgua oxigenada
dc.subject.otherMicrowave-induced combustion
dc.subject.otherNiobium compound synthesis
dc.subject.otherLiNbO3
dc.subject.otherAniline oxidation
dc.subject.otherLow-temperature reactions
dc.titleA feasible and clean solid-phase synthesis of LiNbO3 by microwave-induced combustion and its application as catalyst for low temperature aniline oxidation
dc.typeArtigo de periódico
local.citation.epage1691
local.citation.issue2
local.citation.spage1680
local.citation.volume6
local.description.resumoIn this work, a feasible, fast, clean and efficient microwave-induced combustion method for direct synthesis of LiNbO3 in solid phase was developed. X-ray powder diffraction studies showed that quasi-pure Li–Nb–O phases, such as LiNbO3 and Li3NbO4, or mixtures of LiNbO3, Li3NbO4 and LiNb3O8, could be successfully synthesized. The resulting powders were efficiently applied as catalysts under ambient conditions in the oxidation process of aniline using hydrogen peroxide as oxidant. The proposed method was performed in a commercial system using high-pressure quartz vessels, which allowed safe control of the reactions–that usually occurs in less than 1 min. The results showed that the reaction conditions as well as the structural and morphological characteristics of the catalyst influenced the aniline oxidation process. Therefore, the present method for the preparation of LiNbO3 described herein, displayed many advantages when compared to conventional combustion methods, such as the physical characteristics of the obtained compound. Moreover, this new approach is considerably faster, safer and cleaner than other traditional procedures described in literature for LiNbO3 synthesis. This new microwave-induced combustion method is less time-consuming, saves energy, as well as affording the stoichiometric formation of inorganic particles.
local.identifier.orcidhttps://orcid.org/0000-0002-5780-817X
local.identifier.orcidhttps://orcid.org/0000-0002-0346-2118
local.identifier.orcidhttps://orcid.org/0000-0002-7399-446X
local.identifier.orcidhttps://orcid.org/0000-0001-9978-9854
local.identifier.orcidhttps://orcid.org/0000-0003-1992-7140
local.identifier.orcidhttps://orcid.org/0000-0002-2054-3235
local.identifier.orcidhttps://orcid.org/0000-0001-7413-1087
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://pubs.acs.org/doi/10.1021/acssuschemeng.7b02921

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