Results 21 to 30 of about 6,256 (224)

Influência da adição de níquel na síntese do SrSnO3 Influence of nickel doping on the SrSnO3 synthesis

Cerâmica, 2008
Pós cerâmicos microestruturados de Sr1-xNi xSnO3 (x de 0 a 0,20) foram sintetizados com sucesso pelo método dos precursores poliméricos. Os precursores foram caracterizados por análise térmica.
M. R. Nascimento, M. R. C. Santos, S. J. G. Lima, C. D. Pinheiro, J. W. M. Espinosa, E. Longo, A. G. Souza, I. M. G. Santos   +7 more
doaj   +1 more source

Effect of Fe content on atomic and electronic structure of complex oxides Sr Ti,Fe O3 delta [PDF]

, 2017
Two series of SrTi1 xFexO3 amp; 948; STFO powders with different Fe content produced by two different methods, solid state reaction or modified Pechini synthesis, have been investigated by soft X ray absorption spectroscopy. The O1s K , Fe2p L2,3
Baumann, S., Bouwmeester, H., Egorova, Y., Filatova, E., Galdina, K., Scherb, T., Schumacher, G.   +6 more
core   +2 more sources

Synthesis and Structural Properties of Niobium Pentoxide Powders: A Comparative Study of the Growth Process [PDF]

Materials Research, 2016
Powders Nb2 O5 were prepared by two different synthesis method, Sol-Gel and polymeric precursors (Pechini). In the Pechini method before adding the citric acid in the process, four different solutions were used to get the samples. For Sol-gel method, two
Angela M. Raba, Jorge Bautista-Ruíz, Miryam R. Joya   +2 more
doaj   +1 more source

Study of magnetic properties of NiZnCu ferrite synthesized by Pechini method and solid-state reactions

AIP Advances, 2018
Ni-Zn-Cu ferrites are exhibiting excellent magnetic properties at large frequencies and are consequently produced as low-loss magnetic materials used for magnetic components in power electronics.
Gaëlla Frajer, Mathieu Salaün, Gérard Delette, Hervé Chazal, Olivier Isnard   +4 more
doaj   +1 more source

Adapted Pechini method to prepare DSA type electrodes of RuO2-ZrO2 doped with Sb2O5 over titanium plates

MethodsX, 2018
This paper describes a thermal method to obtain metal oxides on a titanium substrate surface. This adapted Pechini method is a versatile, easy to handle and scalable technique to obtain electrodes for industrial uses, such as Dimensionally Stable Anodes (
Francisca A. Rodríguez, Eligio P. Rivero, Ignacio González   +2 more
doaj   +1 more source

Pós nanométricos de BaZrO3: preparação e caracterização de cerâmicas BaZrO3 nanometric powders: preparation and characterization of ceramics

Cerâmica, 2005
Cerâmicas de BaZrO3 foram produzidas a partir de pós sintetizados pelo método de Pechini modificado. Os pós apresentaram tamanho médio de partícula de ~130 nm e 100% de fase cristalina de BaZrO3 depois de tratados termicamente a 800 °C / 2h.
E. Antonelli, M. I. B. Bernardi, A. C. Hernandes   +2 more
doaj   +1 more source

Síntese e caracterização de nanopartículas de TiO2 Synthesis and characterization of TiO2 nanoparticles

Cerâmica, 2006
Vários métodos de síntese química têm sido desenvolvidos e utilizados na obtenção de pós para fabricação de membranas cerâmicas. Dentre os métodos alternativos utilizados em escala de laboratório, o método Pechini tem sido empregado com sucesso para a ...
A. C. F. M. Costa, M. A. Vilar, H. L. Lira, R. H. G. A. Kiminami, L. Gama   +4 more
doaj   +1 more source

Using the design experiment RSM for the preparation of nanoparticles containing pyrazinamide, ethambutol and rifampin [PDF]

شیمی کاربردی روز, 2018
In this study, three-component nanoparticles of iron, nickel and lithium were synthesized with two methods of combined technique (co-precipitation, hydrothermal) and pechini sol-gel.
Fariba Tadayon, reza jamshidi, parisa Jamshidpoor   +2 more
doaj   +1 more source

Influencia de parámetros de síntesis sobre las características de los polvos cerámicos nanométricos del compuesto Sr_xBa_1-xNb₂O₆ (SBN)

Boletín de la Sociedad Española de Cerámica y Vidrio, 2013
Results on the synthesis process of nanometric ceramic powders of the SrxBa1-xNb2O6 compound (SBN) for two values of x (0.33 and 0.50), and two synthesis methods (Pechini and controlled coprecipitation) are presented.
Gaona J, S. , Muñoz, J. R., Raigoza, C.F.V. , Ramirez S., A. , Caneiro, A.   +4 more
doaj   +1 more source

Intermediate temperature SOFC single cell test using Nd1.95NiO4+δ as cathode [PDF]

, 2007
This work deals with SOFC single cell tests using neodymium nickelate Nd1.95NiO4+δ as cathode material. This MIEC oxide exhibits high values of both surface exchange coefficient (k) and oxygen diffusion coefficient (D*), as well as high electronic ...
Ansart, Florence, Bassat, Jean-Marc, Fontaine, Marie-Laure, Grenier, Jean-Claude, Lalanne, Cécile, Mauvy, Fabrice, Siebert, Elisabeth, Stevens, Philippe   +7 more
core   +5 more sources