Synthesis of ETS-10-like vanadosilicates using 2,6-dimethylpiperidinium cation derivatives as organic templates

Página do item simplificado
dc.contributor.authorContro, Janine [UNESP]
dc.contributor.authorPaula, Alex S. [UNESP]
dc.contributor.authorMedeiros, Vinicius Litrenta [UNESP]
dc.contributor.authorRodrigues, Ariano D.
dc.contributor.authorPacheco, Carlos
dc.contributor.authorNery, José G. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionPennsylvania State University
dc.date.accessioned2020-12-12T01:50:19Z
dc.date.available2020-12-12T01:50:19Z
dc.date.issued2020-02-01
dc.description.abstractSystematic vanadosilicate syntheses were performed using derivatives of 2,6-dimethylpiperidine as organic structure-directing agents (SDAs). Physicochemical analyses of the vanadosilicate materials obtained were carried out by X-ray diffraction (XRD), Raman spectroscopy, infrared (IR) spectroscopy, UV–visible (UV–Vis) spectroscopy, and solid-state NMR spectroscopy (29Si and 51V MAS NMR). The experimental results indicated that the presence of the organic templates had different effects on the final phases of the synthesized vanadosilicates. The XRD results showed that 1,1,2,6-tetramethylpiperidinium (SDA 1) favored synthesis of the known AM-6 vanadosilicates, isostructural to the ETS-10 titanosilicate, while the other organic templates 1,1-diethyl-2,6-dimethylpiperidinium (SDA 2), 6,10-dimethyl-5-azoniaspiro[4.5]decane (SDA 3), and 1,5-dimethyl-6-azoniaspiro[5.5]undecane (SDA 4) directed the formation of vanadosilicates with different phases, such as EVS-10. Strong Raman bands at 870 and 1035 cm−1 indicated vibrational modes associated with the highly symmetric vanadia octahedra. Chemical shifts at −96 ppm (29Si MAS NMR), −610, and −570 ppm (51V MAS NMR) provided further evidence of the incorporation of vanadium into the structures of the vanadosilicates prepared using these novel derivatives of 2,6-dimethylpiperidinium cations as SDAs.en
dc.description.affiliationLaboratory for Clean Energy Technology (LACET) Physics Department São Paulo State University (UNESP), Campus de São José do Rio Preto
dc.description.affiliationDepartment of Physics Federal University of São Carlos
dc.description.affiliationDepartment of Chemistry Pennsylvania State University
dc.description.affiliationUnespLaboratory for Clean Energy Technology (LACET) Physics Department São Paulo State University (UNESP), Campus de São José do Rio Preto
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCNPq: 07/478104-3
dc.identifierhttp://dx.doi.org/10.1016/j.inoche.2019.107724
dc.identifier.citationInorganic Chemistry Communications, v. 112.
dc.identifier.doi10.1016/j.inoche.2019.107724
dc.identifier.issn1387-7003
dc.identifier.scopus2-s2.0-85076628735
dc.identifier.urihttp://hdl.handle.net/11449/199825
dc.language.isoeng
dc.relation.ispartofInorganic Chemistry Communications
dc.sourceScopus
dc.subject2,6-Dimethylpiperidinium cation
dc.subjectSolid-state MAS NMR
dc.subjectStructure-directing agent
dc.subjectVanadosilicates
dc.titleSynthesis of ETS-10-like vanadosilicates using 2,6-dimethylpiperidinium cation derivatives as organic templatesen
dc.typeArtigo

Arquivos

Coleções

Artigos - Física - IBILCE