Results 71 to 80 of about 6,256 (224)

Obtención y caracterización de óxido de titanio dopado con nitrógeno como fotocatalizador por el método de Pechini para uso en reactor solar (CPC) [PDF]

, 2014
En el presente trabajo se llevó a cabo la síntesis de dióxido de titanio (TiO2) dopado con nitrógeno a través del método de Pechini empleando dos fuentes dopantes de diferente naturaleza: nitrato de amonio y urea. Para ello se sintetizaron nueve muestras,
Mejía Abad, Diana Marcela, Pérez Machado, Luis Felipe   +1 more
core  

Modelling of the radiative properties of an opaque porous ceramic layer [PDF]

, 2010
Solid Oxide Fuel Cells (SOFCs) operate at temperatures above 1,100 K where radiation effects can be significant. Therefore, an accurate thermal model of an SOFC requires the inclusion of the contribution of thermal radiation.
B Rousseau, B Rousseau, B Rousseau, B Rousseau, Benoit Rousseau, DA Aspnes, DAG Bruggeman, Domingos De Sousa Meneses, Florence Ansart, Hector Gomart, JM Bassat, KJ Daun, M Greenblatt, Mathilde Rieu, O Rozenbaum, Pascal Lenormand, Patrick Echegut, Romain Dugas, S Castillo, S Murthy, T Chartier   +20 more
core   +3 more sources

Nanostructuring Copper Tungstate Photoanodes: Performance Enhancement and Fundamental Limitations

Small Structures, Volume 7, Issue 3, March 2026.
Nanostructuring of CuWO4 photoanodes yields a ~ tenfold photocurrent enhancement compared to dense films, reaching 0.6 mA cm−2 at 1.23 V versus reversible hydrogen electrode, among the best values reported for this material. Yet, performance remains far below the theoretical limit due to severe bulk recombination and poor electron transport ...
Oliver Mendoza Reyes, Dariusz Mitoraj, Joachim Bansmann, Radim Beranek   +3 more
wiley   +1 more source

Pechini synthesis using propylene glycol and various acid as stabilizing agents and characterization of Gd2NiMnO6 ceramic nanostructures with good photocatalytic properties for removal of organic dyes in water

Journal of Materials Research and Technology, 2020
Gd2NiMnO6 (GNMO NSs) nanostructures were synthesized via a Pechini method using propylene glycol (PG) as alkaline agent and various acid solutions as stabilizing agents. Effect of temperature, time and stabilizing agent was investigated in order to reach
Reza Mohassel, Mahnaz Amiri, Ali Kareem Abbas, Azam Sobhani, Mahdi Ashrafi, Hossein Moayedi, Masoud Salavati-Niasari   +6 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]

, 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, Castillo, Simone, Gonzalez, José-Ramon, Laberty-Robert, Christel, Lenormand, Pascal   +4 more
core   +2 more sources

Spark plasma sintering‐assisted sol‐gel Pechini method: An efficient approach for bulk InGaO3(ZnO)m synthesis and texturation

International Journal of Applied Ceramic Technology, Volume 23, Issue 1, February 2026.
Abstract This article reports on the development of a spark plasma sintering (SPS)‐assisted sol‐gel method for the synthesis of dense pellets, belonging to the series of InGaO3(ZnO)m homologous phases, where m is an integer. We show that using this synthesis route, the sintering temperature is significantly decreased down to 950–1000°C as compared to ...
Sébastien Préaud, Céline Roux‐Byl, François Brisset, Oleb I. Lebedev, David Berardan   +4 more
wiley   +1 more source

Síntese e caracterização de materiais termoelétricos baseados no sistema CA-Co-O [PDF]

, 2014
Mestrado em Engenharia FísicaOs óxidos de metais, como é o caso dos óxidos de cálcio e cobalto, são materiais de elevado interesse tecnológico atendendo às suas propriedades termoelétricas, o que poderá favorecer a sua utilização como conversor de ...
Miyazawa, Keiji
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Abnormal Expansion Along the Synthesis of Zinc Stannate: A Way for Porous Ceramics Without Addition of Pore Generators

Journal of the American Ceramic Society, Volume 109, Issue 2, February 2026.
The abnormal expansion associated with the simultaneous synthesis and sintering of Zn2SnO4 from ZnO and SnO2 is due to the reaction mechanism and correlated with the conversion. This phenomenon opens the way to manufacture porous ceramics without the addition of pore generators, simplifying the process, and especially the thermal treatment.
María José Orts, Eugeni Cañas, Valentín Pérez‐Herranz, Sergio Mestre   +3 more
wiley   +1 more source

Chemical Synthesis and Characterizations of SrSi2O2N2: Eu2+ Phosphors for White LEDs Applications [PDF]

, 2016
白光发光二极管(whitelight-emittingdiodes，WLEDs)具有寿命长、能耗低以及结构紧凑等优点，因此被广泛的关注。目前，基于蓝光LED的荧光粉转换WLEDs(phosphor-converted-WLEDs，PC-WLEDs)是市场的主流，该方案需要搭配荧光粉以产生白光。因此，荧光粉是PC-WLEDs的关键材料之一。 为了获得较高显色指数的PC-WLED，绿色荧光粉是必不可少的。SrSi2O2N2:Eu2+(SSON)是一种性能优异的绿色荧光粉，具有较高的量子效率，较宽的吸收带 ...
DHIA ABDULMUHSIN HASSAN AAL-MO
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The synthesis of thermochemically stable single phase lanthanum titanium aluminium oxide [PDF]

, 2016
Lanthanum titanium aluminium oxide (LaTi2Al9O19, LTA) synthesized by solid state reaction has been proven to be a promising thermal barrier material. However, LTA synthesized via solid state reaction requires a high processing temperature of at least ...
Choy, K-L, Zhang, P
core   +1 more source