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Title: Obtention of nanostructured silica glass by sol-gel process with incorporation of lead compounds
Title of periodic: Materials Research SãoCarlos
metadata.dc.title.subtitlejournal: Revista Brasileira de Materiais
Authors: Santos, Ana Maria Matildes dos
Vasconcelos Wander Luiz
Affiliation: Centro de Desenvolvimento da Tecnologia Nuclear/CDTN, Belo Horizonte, MG, Brasil
Universidade Federal de Minas Gerais/UFMG, Belo Horizonte, MG, Brasil
Issue Date: 1999
Keywords: Sol-gel process;silica;nanostructures;lead compounds
Abstract: The methodology of obtention of nanostructured glass, incorporated with lead compounds, obtained by sol-gel processing and the structural characterizations are presented. Specific surface area, porosity, pore morphology and pore size distributions of the gels were characterized with nitrogen sorption (BET) and mercury pycnometry. The pore size distributions of gels obtained using lead nitrate were more narrow than the ones observed for gels made with lead acetate. It was also observed the presence of a bimodal pore size distribution for gels produced using lead nitrate.
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