Results 21 to 30 of about 221,890 (301)

Potentialities of the sol-gel route to develop cathode and electrolyte thick layers Application to SOFC systems [PDF]

open access: yes, 2008
In this work, we report the potential of sol–gel process to prepare cathode and electrolyte thin and thick layers on anodic NiO-YSZ supports which were also made from powders prepared by sol–gel route.
Ansart, Florence   +5 more
core   +4 more sources

Formation of Particles in Sol-Gel Process

open access: yesKONA Powder and Particle Journal, 2014
The formation of particles in starting solutions and its significance for the sol-gel processing of oxide materials are reviewed on the basis of previous works including our work.
Sumio Sakka
doaj   +1 more source

The sol–gel route: A versatile process for up-scaling the fabrication of gas-tight thin electrolyte layers [PDF]

open access: yes, 2011
Sol–gel routes are often investigated and adapted to prepare, by suitable chemical modifications, submicronic powders and derived materials with controlled morphology, which cannot be obtained by conventional solid state chemistry paths.
Ansart, Florence   +5 more
core   +4 more sources

Gelation of n3p3[nh(ch2)3si(oet)3]6-n [x]n x = nh(ch2)3si(oet)3, nch3(ch2)3cn and oc6h4(ch2)cn, n = 0 or 3 at the liquid/air/interface [PDF]

open access: yes, 2010
Indexación: ScieloThe compounds N3P3[NH(CH2)3Si(OEt)3]6 (1), N3P3[NH(CH2)3Si(OEt)3]3[NCH3(CH2)3CN]3 (2) and N3P3[NH(CH2)3Si(OEt)3]3 [HOC6H4(CH2)CN]3 (3) undergo slow gelation at the interface oil/air at low temperatures to give perfect gels G1, G2 and G3
Aguirre, Pedro   +3 more
core   +2 more sources

Tough monolithic TiO2 materials fabricated by the sol-gel process accompanied with phase separation in solutions of SiC nanofibers and preceramic polymers

open access: yesGiant, 2023
In recent decades, the sol-gel process accompanied with phase separation has been employed to fabricate porous monolithic ceramic materials. However, it is challenging to obtain crack-free samples by using this method, due to the fragile nature of porous
Xin Xu   +4 more
doaj   +1 more source

INFLUÊNCIA DO CATALISADOR EM SOLUÇÕES POLIMÉRICAS PARA O PREPARO DE GÉIS ORGÂNICOS DE RESORCINOL-FORMALDEÍDO

open access: yesQuímica Nova, 2015
Resorcinol-formaldehyde (RF) organic gels have been extensively used to produce carbon aerogels. The organic gel synthesis parameters greatly affect the structure of the resulting aerogel.
Thalita S. Taiariol   +2 more
doaj   +1 more source

Simple and Acid-Free Hydrothermal Synthesis of Bioactive Glass 58SiO2-33CaO-9P2O5 (wt%)

open access: yesCrystals, 2021
The paper focuses on the acid-free hydrothermal process for the synthesis of bioactive glass. The new method avoids the use of harmful acid catalysts, which are usually used in the sol-gel process.
Ta Anh Tuan   +4 more
doaj   +1 more source

Sol–Gel Microcapsulation in Silica-Based Particles: A Comparative Study [PDF]

open access: yes, 2011
We compare the two main sol-gel/emulsion methods to prepare silica-based microparticles doped with actives. Moreover, we analyze the morphpology of the resulting particles varying also the nature of the organosilane, and the pH of the sol-gel process ...
ALONZO, Giuseppe   +3 more
core   +1 more source

Carbonization of solid uranyl-ascorbate gel as an indirect step of uranium carbide synthesis

open access: yesNukleonika, 2015
The studies of the synthesis of uranium carbide from uranyl-ascorbate gels using the complex sol-gel process (CSGP) have been carried out. The synthesis of uranyl-ascorbate mixture as liquid sol from uranium trioxide and ascorbic acid and solid gel by ...
Brykala Marcin   +2 more
doaj   +1 more source

Sol–gel coating processing optimization for natural fibres; pp. 467–472 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2017
Functionality of natural fibres can be enhanced by sol–gel technology. The sol–gel process has to be adapted with regard to the type of coated fibres and to the applied sol. In this research, pure cotton and hemp fibres were modified by the sol–gel
Zane Zelca   +2 more
doaj   +1 more source

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