Niobium oxide
Anodic niobium oxide films: electrochromic effect and electrointercalation reaction kinetics.
... ANODIC NIOBIUM OXIDE FILMS: ELECTROCHROMIC EFFECT AND ELECTROINTERCA- LATION REACTION ...anodic niobium oxide films. The oxide grown in an acid environment by application of an ...
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Аnodic formation of nanoporous crystalline niobium oxide
... crystalline oxide increased electric conductivity ...of niobium oxide (Fig. 7) and the solid barrier oxide using the decoration ...anodic niobium oxides of the crystalline structure had ...
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Influence of precipitating agent in the preparation of hydrous niobium oxide by the method of homogeneous precipitation.
... HYDROUS NIOBIUM OXIDE BY THE METHOD OF HOMOGENEOUS ...hydrous niobium oxide prepared by a homogeneous precipitation ...hydrous niobium oxide with a ...
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Electrochemical study of methylene blue adsorbed on the silica gel modified with niobium oxide.
... ELECTROCHEMICAL STUDY OF METHYLENE BLUE ADSORBED ON THE SILICA GEL MODIFIED WITH NIOBIUM OXIDE. Methylene blue (AM) was immobilised on surface of the silica gel modified with niobium oxide. ...
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Cadmium, lead and silver adsorptio in hydrous niobium oxide prepared by homogeneous solution method.
... CADMIUM, LEAD AND SILVER ADSORPTIO IN HYDROUS NIOBIUM OXIDE PREPARED BY HOMOGENEOUS SOLUTION METHOD. This paper describes the adsorption of heavy metals ions from aqueous solution by hydrous niobium ...
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Alumina supported niobium oxide prepared by chemical vapor deposition: characterization by vibrational spectroscopy and thermogravimetric analysis.
... Evi- dência adicional deste fato é o aumento de tamanho de cristalito observado com o aumento da temperatura de calcinação Da mesma forma, esta interpretação pode explicar as pequenas di[r] ...
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THE CRYSTALLIZATION OF POTASSIUM GERMANATE GLASS WITH HIGH CONTENT OF NIOBIUM OXIDE
... At crystallization peak in temperature range T > 800 °C in the particle size range < 0.35 mm the mixed crystallization mechanism is dominant and the volume crystallization in [r] ...
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Adsorption of phosphate ions on hydrous niobium oxide.
... Um aumento na concentração inicial resulta em um significativo aumento na quantidade de íons fosfato adsorvida no equilíbrio para a equação de pseudo 2ª ordem (qe 2 )... A Figura 3S mo[r] ...
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Braz. J. Chem. Eng. vol.22 número1
... for niobium oxide, one gram of sodium hexametaphosphate was added to each liter of suspension and then the balloon was placed in an ultrasonic bath for one ...
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Quím. Nova vol.33 número3
... on niobium oxide, the material impregnated with SnO 2, after being calcinated, was characterized by ...on niobium oxide (SnO 2 /Nb 2 O 5 , 10% tin in mass) and of the support are shown in ...
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Mat. Res. vol.19 número6
... The microstructure of the resulting T − Nb 2 O 5 nanosize powder is linked to the two synthesis methods, because the properties of the niobium oxide powders are strongly depen[r] ...
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J. Braz. Chem. Soc. vol.20 número5
... of niobium oxide and its derivatives as catalysts for biofuels ...hydrated niobium oxide (niobium acid) is described as active for the esteriication of a mixture containing 80% of free ...
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Emissão de N2O do solo devido à aplicação de urina e o potencial de mitigação
... Nitrous oxide may then be emitted through the microbiological processes of nitrification and denitrification, which are affected by soil and climatic factors such as soil enzyme activities, nitrate concentrations, ...
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J. Braz. Chem. Soc. vol.25 número5
... the niobium pentachloride used in this work, Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Coordenadoria de Aperfeiçoamento de Pessoal do Nível Superior (CAPES), and Fundação de Amparo à ...
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J. Braz. Chem. Soc. vol.26 número11
... method measured by fluorescence was used to determine the critical micelle concentration (cmc). In addition, to our knowledge, this is the first time that citoxicity studies using human neutrophils were performed in ...
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J. Braz. Chem. Soc. vol.28 número2
... To investigate the surface morphology and particle size of GO/ZnO composite, SEM images were taken and presented in Figure 3. Figure 3a shows the particles of ZnO have been dispersed on graphene oxide sheets. It ...
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Chemistry Education and Mythology
... of niobium and tantalum elements were taught to the first group in a traditional ...way. Niobium (Nb) and Tantalum (Ta) are the same group elements in periodic ...
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Caracterização morfométrica e molecar do papel da iNOS no processo de reparo ósseo...
... nitric oxide synthase (iNOS) is an enzyme responsible for the synthesis of nitric oxide, a reactive molecule involved in the regulation of several physiological processes, highlighting relevant effects on ...
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Mat. Res. vol.7 número1
... as niobium and chromium, or particles (grains) of these metals dispersed in the matrix of a iron base material correspond to a microstructural arrangement having desired properties for high temperature ...
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Effect of a rosmarinic acid supplemented hemodialysis fluid on inflammation of human vascular endothelial cells
... Chronic systemic inflammation and repetitive damage of vascular endothelia by incompatible dialysis system are probable causes of cardiovascular disease in patients on dialysis. The present study aimed to assess in vitro ...
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