نتایج جستجو برای: gel combustion method

تعداد نتایج: 1741915  

2012
JIHAI CHENG

A novel anode material for intermediate temperature solid oxide fuel cells with a composite of LaxSr1-xTiO3 has been synthesized by a sol-gel auto-combustion method. X-ray diffraction (XRD) shows that LaxSr1-xTiO3 has good chemical compatibility with Gd0.2Ce0.8O1.9 electrolyte. The thermal expansion coefficient (TEC) of the as-prepared anode material is similar to that of Gd0.2Ce0.8O1.9. The el...

2014
Anitha Rani

Ferrites with spinel structure are the most widespread materials in radio engineering, electronics and communication industry, microwave devices and computer facilities. The change of synthesis temperature of ferrites results in cation redistribution of iron, which updates crystal properties, as macroscopic magnetic properties of ferrites. Among this extensive class of compounds nickel and copp...

Journal: :E3S web of conferences 2021

Carbon materials derived from biomass are drawing increasing attention due to its advantages in economical as well ecological production. Among the resources be utilized for that purpose, lignin possesses unique characteristics: it is available bulk quantity a low-value by-product pulp and paper industries chemical structure based on complex aromatic networks provides excellent precursor grahit...

داور, فاطمه, شجاع رضوی, رضا, شیرین‌پرور, شیما, قربانی, سعید, لقمان استرکی, محمدرضا,

In this research, the nanopowders of lanthanum and neodymium co-doped yttria were synthesized by sol-gel combustion method. Citric acid and glycine were used as the gel maker and fuel respectively. The effect of molar ratio of citric acid to glycine on the grain size and morphology was evaluated. The optimized products were characterized by X-ray diffraction (XRD), field-emission scanning ...

Journal: :journal of nanostructures 2014
z. khoshkhan m. salehi

alumina nanomaterials were synthesized via a solution combustion technique using tris-(acetylacetonato) aluminum(iii) complex (1) and tris-(2-formylphenolate) aluminum(iii) complex (2) at 600, and 1000 °c for 3h. the obtained data showed that the procedure without using fuel resulted in a better phase and morphology. to investigate the phase formation, powder x-ray diffraction technique was use...

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