Creation and Preparation of a Barium Lanthanyloxalate Composite Substance Based on Sol-Gel Technology

This article explored a method for producing a compound of the type perovskite composition. Ba0.5X×Ox1X (where X=0.5:0.5=1). A multi-component composition was obtained during coagulation and gel formation (xerogel) of pH 5.5, acidic medium, at a temperature of 45–50 °C, mechanical stirring for 10 hours. The sol–gel crystallization of the compound was determined at a temperature of 400–500 °C and the previously obtained substance was named Barium Lanthanyloxalate.

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Effect of annealing on sol-gel derived TiO2 nanoparticles in acidic medium

2017 International Conference on Nextgen Electronic Technologies: Silicon to Software (ICNETS2) ◽

10.1109/icnets2.2017.8067908 ◽

2017 ◽

Author(s):

Nilanjan Haider ◽

Kamakhya Prakash Misra

Keyword(s):

Acidic Medium ◽

Sol Gel

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Specific features of the sol-gel formation and optical properties of nanostructured systems based on the oxides of tin and indium in the matrix of porous silicon

Glass Physics and Chemistry ◽

10.1134/s1087659615040112 ◽

2015 ◽

Vol 41 (4) ◽

pp. 417-420 ◽

Cited By ~ 1

Author(s):

A. S. Len’shin ◽

P. V. Seredin ◽

D. A. Minakov ◽

I. E. Kononova ◽

V. A. Moshnikov

Keyword(s):

Optical Properties ◽

Porous Silicon ◽

Sol Gel ◽

Gel Formation ◽

Nanostructured Systems ◽

The Matrix

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Composition and Properties of TiO2 Sol to Produce a Photocatalytic Composite Material

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.854.45 ◽

2020 ◽

Vol 854 ◽

pp. 45-50

Author(s):

Ekaterina N. Gubareva ◽

Valeria V. Strokova ◽

Yulia N. Ogurtsova ◽

Pavel S. Baskakov ◽

Lok Pratap Singh

Keyword(s):

Composite Material ◽

Titanium Dioxide ◽

Ethyl Alcohol ◽

Titanium Dioxide Nanoparticles ◽

Sol Gel ◽

Component Composition ◽

Optimal Composition ◽

Optimal Ratio ◽

Nanosized Titanium Dioxide ◽

Sol Gel Synthesis

The paper presents the process of sol-gel synthesis of titanium dioxide nanoparticles, the peculiarities of the influence of component composition (titanium precursor content, solvent and stabilizer − surfactant) on the properties of sol and powder obtained on its basis. As a result of the study, the nature of the influence of the type and content of the surfactant in the solution of tetrabutoxytitanium in ethanol on the size of the synthesized particles of titanium dioxide was revealed. The optimal composition of the reaction mixture of TiO–R sol was obtained and the optimal ratio of tetrabutoxytitanium and ethyl alcohol was revealed using which a material with a high content of nanosized titanium dioxide was obtained.

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Quantitative Kinetic Analysis by High-Resolution 29Si NMR Spectroscopy of the Initial Stages in the Sol-Gel Formation of Silica Gel from Tetraethoxysilane

Chemistry of Materials ◽

10.1021/cm00058a008 ◽

1995 ◽

Vol 7 (10) ◽

pp. 1800-1806 ◽

Cited By ~ 33

Author(s):

Colin A. Fyfe ◽

Patricia P. Aroca

Keyword(s):

Nmr Spectroscopy ◽

High Resolution ◽

Kinetic Analysis ◽

Silica Gel ◽

Sol Gel ◽

29Si Nmr ◽

Gel Formation ◽

29Si Nmr Spectroscopy

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Specific features of the sol-gel formation and optical properties of 3d metal/porous silicon composites

Semiconductors ◽

10.1134/s1063782614040174 ◽

2014 ◽

Vol 48 (4) ◽

pp. 551-555 ◽

Cited By ~ 5

Author(s):

A. S. Lenshin ◽

P. V. Seredin ◽

D. A. Minakov ◽

V. M. Kashkarov ◽

B. L. Agapov ◽

...

Keyword(s):

Optical Properties ◽

Porous Silicon ◽

Sol Gel ◽

Gel Formation

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Sol–gel formation, Mössbauer studies, optical absorption and impedance characteristics of Ba0.5Sr0.5Zn0.2Fe0.8O3−ξ powder

Materials Chemistry and Physics ◽

10.1016/j.matchemphys.2012.06.013 ◽

2012 ◽

Vol 136 (1) ◽

pp. 28-35 ◽

Cited By ~ 7

Author(s):

Shivendra Kumar Jaiswal ◽

Jitendra Kumar

Keyword(s):

Optical Absorption ◽

Sol Gel ◽

Gel Formation ◽

Mössbauer Studies ◽

Impedance Characteristics

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Preparation of LaFeO3 particles by sol-gel technology

Journal of Materials Research ◽

10.1557/jmr.1998.0058 ◽

1998 ◽

Vol 13 (2) ◽

pp. 451-456 ◽

Cited By ~ 39

Author(s):

C. Vázquez-Vázquez ◽

P. Kögerler ◽

M. A. López-Quintela ◽

R. D. Sánchez ◽

J. Rivas

Keyword(s):

Particle Size ◽

Magnetic Properties ◽

Infrared Spectroscopy ◽

Sol Gel ◽

Diffraction Peak ◽

Gel Formation ◽

X Ray Diffraction ◽

X Ray ◽

Ferromagnetic Component ◽

Peak Broadening

The study of submicroscopic particles in already known systems has resulted in a renewed interest due to the large differences found in their properties when the particle size is reduced, and because of possible new technological applications. In this work we report the preparation of LaFeO3 particles by the sol-gel route, starting from a solution of the corresponding metallic nitrates and using urea as gelificant agent. Gels were decomposed at 200 °C and calcined 3 h at several temperatures, T, in the range 250–1000 °C. The samples were structurally characterized by x-ray diffraction (XRD) showing that the orthoferrite crystallizes at T as low as 315 °C. From the x-ray diffraction peak broadening, the particle size was determined. The size increases from 60 to 300 nm as the calcination T increases. Infrared spectroscopy was used to characterize gels and calcined samples. From these studies a mechanism for the gel formation is proposed. Study of the magnetic properties of LaFeO3 particles shows the presence of a ferromagnetic component which diminishes as the calcination temperature increases, vanishing at T = 1000 °C.

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