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Mostrando ítems 3231-3240 de 6694
Estudos físico-químicos e desenvolvimento de baterias de inserção de prótons
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE QUÍMICAPrograma de Pós-Graduação em QuímicaUFMG, 2020-02-28)
In this work it was prepared two different Prussian Blue analog materials – the copper hexacyanoferrate(II) - CuHCF - and the vanadyl hexacyanoferrate(II) - VOHCF. These materials were characterized by physical-chemical ...
Transformação do glicerol em compostos de interesse petroquímico catalisada por zeólitas com ordem hierárquica de poros
(Universidade Estadual Paulista (Unesp), 2013-07-29)
As propriedades catalíticas de zeólitas micro e micro-mesoporoas foram avaliadas pela desidratação do glicerol em fase gasosa. A dessilicação foi a metodologia utilizada para criar mesoporos nas zeólitas, diminuir as ...
Electrochemical investigation of the dimeric oxo-bridged ruthenium complex in aqueous solution and its incorporation within a cation-exchange polymeric film on the electrode surface for electrocatalytic activity of hydrogen peroxide oxidation
(Pergamon-Elsevier B.V. Ltd, 2011-07-30)
Electrochemical behavior of oxo-bridged dinuclear ruthenium(III) complex ([(bpy)2(H(2)O)Ru(III)-O-Ru(III)(H(2)O)(bpy)2](4+)) has been studied in aqueous solution (KCl 0.5 mol L(-1)) by both cyclic and rotating disk electrode ...
Tratabilidade de solo contaminado com naftaleno através de oxidação química: análises da fase sorvida, aquosa e vapor
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA QUÍMICA, 2018-07-23)
Soil contamination by polycyclic aromatic hydrocarbons (PAHs) is a
worldwide discussed subject. Naphthalene (NAP) is a PAH and it is among the 16 priority
pollutants listed by the United States Environmental Protection ...
Estudo das propriedades estruturais, magnéticas, e eletrocatalíticas de compósitos de Fe-W e Fe-Mo para aplicação na reação de evolução de oxigênio
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICA, 2022-05-30)
The world energy demand grows year after year and because of the environmental
impact of fossil fuels consumption, it is urgent the search for a sustainable energy source.
Hydrogen is a great candidate for this post, but ...
A chemical study of b-carotene oxidation by ozone in an organic model system and the identification of the resulting products
(2011)
Carotenoids are present in many foods. Due to their polyenic chains, they undergo oxidation reactions which may give several compounds. Ozone, a powerful antimicrobial agent, is applied in the food industry due to its high ...
Electrochemical investigation of the dimeric oxo-bridged ruthenium complex in aqueous solution and its incorporation within a cation-exchange polymeric film on the electrode surface for electrocatalytic activity of hydrogen peroxide oxidation
(Pergamon-Elsevier B.V. Ltd, 2011-07-30)
Electrochemical behavior of oxo-bridged dinuclear ruthenium(III) complex ([(bpy)2(H(2)O)Ru(III)-O-Ru(III)(H(2)O)(bpy)2](4+)) has been studied in aqueous solution (KCl 0.5 mol L(-1)) by both cyclic and rotating disk electrode ...
Transformação do glicerol em compostos de interesse petroquímico catalisada por zeólitas com ordem hierárquica de poros
(Universidade Estadual Paulista (Unesp), 2013-07-29)
As propriedades catalíticas de zeólitas micro e micro-mesoporoas foram avaliadas pela desidratação do glicerol em fase gasosa. A dessilicação foi a metodologia utilizada para criar mesoporos nas zeólitas, diminuir as ...
Modeling of direct solar radiation in a compound parabolic collector (cpc) with the ray tracing technique
(Universidad Nacional de Colombia Sede Medellín, 2010)
The compound parabolic collector (CPC) is a widely used technology in photochemical applications, like photocatalytic reactions. For kinetic purposes in this kind of reaction, the radiation distribution has to be well ...
Diseño y construcción de un reactor discontinuo de saponificación para el laboratorio de procesos industriales de la Facultad de Ciencias de la ESPOCH.
(Escuela Superior Politécnica de Chimborazo, 2019-06-12)
The design and construction of a discontinuo saponification reactor was carried out to obtain liquid soap, which is used to carry out manufacturing practices in the following departments: Mass balance, Unit Operations and ...