Insights for phase control in TiO2 nanoparticles from polymeric precursors method

Autor(es)

Ronconi, Celia M. ^[1] ; Ribeiro, Caue ^[2] ; Bulhoes, Luiz O. S. ^{[1, 3]} ; Pereira, Ernesto C. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, LIEC, Dept Quim, BR-13565905 Sao Carlos, SP - Brazil

^[2] Embrapa Instrumentacao Agropecuaria, BR-13560970 Sao Carlos, SP - Brazil

^[3] UNICEP, Ctr Univ Cent Paulista, BR-13565905 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Alloys and Compounds; v. 466, n. 1-2, p. 435-438, OCT 20 2008.
• Citações Web of Science: 23

Resumo

This work reports the synthesis of titanium oxide (TiO2) in anatase and rutile phases prepared by the polymeric precursors method. The synthesis was investigated in function of the precursors' molar ratios and calcination temperature, in long treatment times. The characterization revealed the complete retention of anatase phase in high organic:metal molar ratios. From surface area measurements. this work evidences the existence of a critical size for anatase stabilization, as observed in previous works. (C) 2006 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 03/09933-8 - Núcleo de Excelência em Materiais Nanoestruturados Fabricados Eletroquimicamente
• Beneficiário: Ernesto Chaves Pereira de Souza
• Modalidade de apoio: Auxílio à Pesquisa - Programa PRONEX - Temático