Nickel Films
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Corrosion Resistance of TiO2-ZrO2 Nanocomposite Thin Films Spin Coated on AISI 304 Stainless Steel in 3.5 wt. % NaCl Solution
Utilizing high chromium and nickel content in AISI 304 steel confers its good corrosion resistance. However, the high content of chromium and nickel increases the steel susceptibility to corrosion caused by the high concentration of chlorine. Consequently, the electrochemical and mechanical performance of the steel degrades. In this study, the effect of addi
Mat. Res.. Publicado em: 02/12/2019
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2. Structural, optical and electrical properties of Ni-doped Co3O4 prepared via Sol-Gel technique
In this article, Nickel doped Cobalt oxide thin films and powders have been prepared on glass substrates using sol gel based dip coating process in order to investigate their optical, structural and electrical properties. The Ni concentration was changed from 0 to 9 wt(%).The synthesized samples were characterised by Ultraviolete visible analysis, X-ray diff
Mat. Res.. Publicado em: 07/02/2018
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3. Sputtering Power Induced Physical Property Variation of Nickel Oxide Films by Radio Frequency Magnetron Sputtering
NiO thin films were deposited on Si and Corning 1737 glass substrates using radio frequency (rf) magnetron sputtering system. The physical properties of NiO films under different sputtering power were thoroughly studied. The XRD results indicated that as-prepared NiO films with the sputtering power above 100 W developed only (200) preferred orientation. The
Mat. Res.. Publicado em: 01/02/2018
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4. Dip coating of a carbon steel sheet with Ni reinforced TiO2 nanoparticles
In this work carbon steel plates were dip-coated with a composite film obtained from a colloidal suspension of Ni-TiO2. Suspensions with different solids contents were used to evaluate the adherence of the film and the microstructural features. The samples were characterized using both optical and scanning electron microscopy, energy dispersive spectroscopy
Mat. Res.. Publicado em: 12/04/2016
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5. SÃntese de grafeno pelo mÃtodo CVD. / Graphene Synthesis by CVD Method
The advancement and improvement of synthesis techniques and handling of materials are fundamental to understand their properties and possible forms of production and use. However, in the case of nanomaterials, problems such as structural defects, high cost and difficulty of achieving production on a large scale have yet to be solved. Inserted in this panoram
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/08/2011
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6. Preparação e caracterização eletroquímica de filmes finos de nanotubos de carbono depositados sobre ITO / Preparation and electrochemical characterization of thin films of carbon nanotubes deposited on ITO
In this work were carried out some studies on electrochemical properties of carbon nanotubes (CNT) thin films deposited on ITO (Indium Tin Oxide) electrodes by electrophoretic deposition (EPD). Capacitance and electrochemical area measurements were made with films of three types of nanotubes with different dimensions and previous treatments. All measurements
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/07/2011
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7. PREPARAÇÃO E CARACTERIZAÇÃO DE FILMES AUTOMONTADOS CONTENDO POLIELETRÓLITOS INORGÂNICOS E GOMA NATURAL DO CAJUEIRO.
Nanocompósitos na forma de filmes ultrafinos com estrutura em bicamadas e tetracamadas, utilizando o polieletrólito cloreto de 3-n-propil-1- azonia-4-azabiciclo[2.2.2] octano silsesquioxano (designado como SiDb+Cl-) ou o polieletrólito cloreto de 3-n-propilpiridínio silsesquioxano (designado como SiPy+Cl-) e ftalocianina tetrassulfonada de níquel (NiTsP
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/03/2011
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8. Layer-by-Layer assembly of carbon nanotubes applied in sensing / Filmes automontados de nanotubos de carbono aplicados em sensores
Carbon nanotubes (CNTs) are versatile in enhancing the properties of other materials. They can be integrated with biological materials, for instance, in the fabrication of biosensors with optimized sensitivity and performance. With manipulation of CNTs in nanostructured films, one may form hybrid nanocomposites whose synergistic interaction requires experime
Publicado em: 2010
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9. Hidrogenação eletrocatalítica de substratos orgânicos utilizando eletrodos modificados poliméricos contendo partículas de Ni/Pd e Ni/Pt
Novel modified electrodes bearing dispersed Pd and Pt particles have been prepared from poly (allyl ether of the p-benzenesulfonic acid) films with incorporated nickel particles making use of galvanic displacement reactions. The SEM analysis of the new modified electrodes revealed efficient deposition of Pd but weak up-take of Pt. Electrocatalytic hydrogenat
Química Nova. Publicado em: 2009
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10. CORROSION OF ADVANCED STAINLESS STEEL IN PHYSIOLOGICAL SOLUTIONS / Corrosão de aços inoxidáveis avançados em meios fisiológicos
The main objective of this study was to determine the corrosion behavior of advanced stainless steels (SS) in physiological solutions to evaluate their potential for use as biomaterials. Four stainless steels were tested: a superferritic stainless steel (DIN W. Nr. 1.4575), Incoloy MA 956, containing aluminum and yttrium oxide, an austenitic stainless steel
Publicado em: 2008
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11. Synthesis of TiC thin films by CVD from toluene and titanium tetrachloride with nickel as catalyst
Titanium Carbide TiCx was deposited onto quartz substrates by the chemical vapour deposition (CVD) method. TiCx thin films were obtained from titanium tetrachloride (TiCl4) and toluene (C6H5CH3) as carbon source. Deposits were carried out in the range of substrate temperatures from 300 to 1100 °C, with a source gas molar ratio (C6H5CH3/TiCl4 + C6H5CH3 ) of
Matéria (Rio de Janeiro). Publicado em: 2007
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12. Preparação, caracterização e utilização de eletrodos de óxidos de níquel na eletrooxidação do furfural / Preparation, caracterization and utilization of niquel oxides eletrodes in the Furfural eletrooxidation
No presente trabalho foram preparados eletrodos formados por filmes finos de níquel e óxido de níquel sobre um substrato de Ti. Estes eletrodos foram preparados pelas metodologias de decomposição térmica de precursores poliméricos; método sol-gel e eletrodeposição com a finalidade de investigar a influência da metodologia de preparação sobre sua
Publicado em: 2006