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Preparação e caracterização de filmes nanoestruturados suportados em membrana de celulose contendo nanopartículas de Au e TiO2 para produção de H2
(2014-06-24)
The search for renewable energy sources is a subject of great interest worldwide due to
growing energy demand, instability in oil prices and environmental problems. In this
context, the self-assembled thin films have ...
Produção fotocatalítica de hidrogênio a partir de filmes finos poliméricos nanoestruturados suportados em substrato flexível
(2017-05-10)
The use of renewable energy such as solar energy to produce hydrogen gas (H2), through the photocatalytic process of breaking the water molecule, is a promising alternative to conventional energy sources. In this context, ...
Contribuições do fenômeno de atrito no sistema ferro puro nitretado e pós-oxidado
(2017)
Control and reduction of friction can help in the elaboration of strategies of energy efficiency and in the reduction of carbon dioxide (CO2) emission. Although there are well established phenomenological laws for friction, ...
Avaliação da incorporação de nanopartículas de ouro em filmes automontados de polieletrólitos fracos
(2014-06-05)
Nanotechnology has brought some new challenges such as the development of quality and synthesis processes on nanostructures based on inorganic and organic substances. The development of new materials with organic and ...
Avaliação das técnicas de dispersão mecânica e ultrassônica de nanotubos de carbono de paredes múltiplas em resina epóxi
(2014-06-03)
In this study nanotubes/epoxy composites were produced in order to evaluate which of the two studied techniques would result in a better degree of dispersion and unentanglement of carbon nanotubes in epoxy resin. The ...
Fotossensibilizadores nanoestruturados por sistema camada por camada
(2014-06-05)
The search for materials that can be modified at molecular level has been the subject of several studies worldwide. Thus, the production techniques of thin films stand out due to the possibility of reducing costs and ...
Preparação, caracterização e aplicação de filmes finos de PAH/PAA com nanopartículas de prata no tratamento microbiológico de efluentes industriais para reuso
(2014-06-24)
The rapid growth of nanotechnology has attracted increasing interest from many researchers for producing econanomaterials, aiming its subsequent application in thematics related to environmental issues. In this context, ...
Interações de van der Waals na superlubricidade de filmes nanoestruturados e hidrogenado
(2019-03-26)
Friction is originated by energy dissipation events owing to the lost work of non-conservative forces. The nanotribological mechanisms through which this dissipation can occur include molecular deformation and thermal, ...
Interações físico-químicas em nanotribologia: elucidação de mecanismos e controle do atrito em escala nanométrica
(2023-08-04)
The study of friction, wear, lubrication, and adhesion at the nanoscale forms nanotribology, an interdisciplinary area dedicated to understanding and promoting advances in the most diverse applications in which these ...