Results 21 to 30 of about 6,144 (227)

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

open access: yesMaterials 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   +2 more
doaj   +1 more source

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

open access: yesAIP 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   +4 more
doaj   +1 more source

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

open access: yesMethodsX, 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   +2 more
doaj   +1 more source

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

open access: yesCerâmica, 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   +2 more
doaj   +1 more source

Lanthanum ferromanganites thin films by sol–gel process. Influence of the organic/inorganic R ratio on the microstructural properties [PDF]

open access: yes, 2005
Strontium-substituted lanthanum ferromanganites, La0.8Sr0.2Mn1−yFeyO3+δ (y=0, 0.2, 0.5, 0.8, 1), LSMF2Y (Y=10y) for solid oxide fuel cell (SOFC) cathode applications have been synthetized by a polymeric sol–gel route and deposited on YSZ substrates by a ...
Ansart, Florence   +4 more
core   +2 more sources

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

open access: yes, 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   +7 more
core   +5 more sources

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

open access: yesCerâmica, 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   +4 more
doaj   +1 more source

Synthesis, structural characterization and broadband ferromagnetic resonance in Li ferrite nanoparticles [PDF]

open access: yes, 2018
Producción CientíficaLithium ferrites are well known materials due to its numerous technological applications especially in microwave devices. Lithium ferrite nanoparticles were prepared by sol-gel technique by means of Pechini method, and then annealed ...
Almeida Valente, Manuel   +3 more
core   +1 more source

Influencia de parámetros de síntesis sobre las características de los polvos cerámicos nanométricos del compuesto SrxBa1-xNb2O6 (SBN)

open access: yesBoletín 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.   +4 more
doaj   +1 more source

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

open access: yesشیمی 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   +2 more
doaj   +1 more source

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