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Artículos de revistas sobre el tema "Solution Combustion Synthesi"

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Autor: Grafiati
Publicado: 14 de marzo de 2023

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1

Zhou, Qilai, Yue Gao, Lihong Xue, Heping Li y Youwei Yan. "ICONE23-1090 SINGLE STEP FABRICATION OF NANO-SIZED Li4SiO4 BREEDER BY MICROWAVE-INDUCED SOLUTION COMBUSTION SYNTHESIS". Proceedings of the International Conference on Nuclear Engineering (ICONE) 2015.23 (2015): _ICONE23–1—_ICONE23–1. http://dx.doi.org/10.1299/jsmeicone.2015.23._icone23-1_47.

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Lazo, A., C. Paucarchuco y H. Loro. "SÍNTESIS DE YAIO3 (YAP) POLICRISTALINO POR EL MÉTODO DE COMBUSTIÓN EN SOLUCIÓN". Revista Cientifica TECNIA 27, n.º 1 (4 de enero de 2018): 61. http://dx.doi.org/10.21754/tecnia.v27i1.126.

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Se presenta el método de combustión en solución y su aplicación para la síntesis de YAlO3 (YAP), fueron usados como combustibles para la reacción de combustión y síntesis la urea y glicina, del YAP. Usando las técnicas de difracción de rayos X (XRD) por el método del polvo y microscopia electrónica de barrido (MEB) fueron analizadas la parte estructural y morfológica de las muestras obtenidas. Los difractogramas de Rayos X muestran una excelente correspondencia con lo reportado en la literatura para este material. Se suministran también los resultados de las muestras de material YAlxCrx‐1O3, dopado con Cr3+ con x = 0.001, 0.01, que exhiben picos de difracción dominantes debidos a la fase ortorrómbica de YAlO3 Palabras clave.- YAP, YAlO3, Combustion method. ABSTRACT The solution‐combustion process is presented, as well as its application to the synthesis of YAlO3 (YAP). Urea and glycine were used as fuel for the combustion reaction and synthesis of the YAP. The structure and morphology of the obtained sample were analyzed using the X‐ray diffraction (XRD) powder method and scanning electron microscopy (SEM). The X‐ray patterns showed an excellent agreement with data reported in the literature for this material. Results are also given for samples of YAlxCrx‐1O3 doped with Cr3+, with x = 0.001, 0.01, which showed dominant diffraction peaks due to the orthorhombic phase of YAlO3. Keywords.- YAP, YAlO3, combustion method.
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3

Astuti, Yayuk, Prisca Putri Elesta, Didik Setyo Widodo, Hendri Widiyandari y Ratna Balgis. "Hydrazine and Urea Fueled-Solution Combustion Method for Bi2O3 Synthesis: Characterization of Physicochemical Properties and Photocatalytic Activity". Bulletin of Chemical Reaction Engineering & Catalysis 15, n.º 1 (19 de octubre de 2019): 104–11. http://dx.doi.org/10.9767/bcrec.15.1.5483.104-111.

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Bismuth oxide synthesis using solution combustion method fuelled by hydrazine and urea has been conducted. This study aims to examine the effect of the applied fuels, urea and hydrazine, on product characteristics and photocatalytic activity in degrading rhodamine B dye. Bismuth oxide synthesis was initiated by dissolving bismuth nitrate pentahydrate (Bi(NO3)3.5H2O) in a nitric acid solvent. Fuel was added and then stirred. The solution formed was heated at 300 ºC for 8 hours. The product obtained was then calcined at 700 ºC for 4 hours. Bismuth oxide synthesized with urea (BO1) and hydrazine (BO2) as fuels both obtained form of yellow powder. The formation of bismuth oxide is indicated by the vibrations of the Bi–O–Bi and Bi–O groups and the crystal structure of a-Bi2O3 in both products. Photocatalytic activity test showed that BO1 has a photocatalyst activity in degrading rhodamine B higher than that of BO2 with constant values of 3.83×10-5 s-1 and 3.43×10-5 s-1, respectively. The high photocatalytic activity can be examined through several factors, such as: band gap values, crystal structure, morphology, and surface area, acquired as a result of the use of different fuels in the synthesis process. Copyright © 2020 BCREC Group. All rights reserved
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4

Jung, Choong Hwan, Ji Yeon Park y Woo Seog Ryu. "Synthesis and Dilatometric Study of Ca(Sr, La)TiO3 Prepared by Solution Combustion Synthesis (SCS)". Solid State Phenomena 119 (enero de 2007): 107–10. http://dx.doi.org/10.4028/www.scientific.net/ssp.119.107.

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La and Sr have recognized as elements of high level radioactive wastes immobilized by solid solution with CaTiO3. For forming solid solution with CaTiO3, the solution combustion synthesis (SCS) process was applied and the powder characteristics and sinterability were investigated. The proper selection of the type and the composition of fuels are important to get the crystalline of CaTiO3. When glycine or the mixtures of urea+citric acid with stoichiometric composition was used, the solid solutions of Ca(La, Sr)TiO3 were entirely produced. The combustion synthesized powder seemed to have a good sinterability with the linear shrinkage of more than 23% up to 1400oC, while that of the solid state reacted powder was less than 19% at the same conditions.
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5

Mukasyan, Alexander S., Paul Epstein y Peter Dinka. "Solution combustion synthesis of nanomaterials". Proceedings of the Combustion Institute 31, n.º 2 (enero de 2007): 1789–95. http://dx.doi.org/10.1016/j.proci.2006.07.052.

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6

Yin, Ziyang, Si Li, Xiang Li, Wuyang Shi, Wei Liu, Zhengxia Gao, Mengya Tao, Chengliang Ma y Yuan Liu. "A review on the synthesis of metal oxide nanomaterials by microwave induced solution combustion". RSC Advances 13, n.º 5 (2023): 3265–77. http://dx.doi.org/10.1039/d2ra07936d.

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Microwave-induced solution combustion synthesis is a new method of nanomaterials preparation based on traditional solution combustion synthesis. The method can rapidly prepare a wide variety of nanomaterials.
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7

Kata, D., M. Ohyanagi y Z. A. Munir. "Induction-field-activated self-propagating high-temperature synthesis of AlN–SiC solid solutions in the Si3N4–Al–C system". Journal of Materials Research 15, n.º 11 (noviembre de 2000): 2514–25. http://dx.doi.org/10.1557/jmr.2000.0361.

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The synthesis of AlN–SiC solid solutions from Si3N4, Al, and C was investigated using the induction-field-activated/self-propagating high-temperature synthesis/static pseudo-isostatic compaction technique. Careful x-ray diffraction analyses were made on the products of combustion to determine reaction routes. Optical microscopy as well as scanning electron microscopy with an electron probe microanalysis was used for microstructural analysis. It was found that initially molten aluminum reacted with silicon nitride producing an Al–Si alloy. At higher temperatures, aluminum evaporated from the Al–Si liquid and the synthesis of AlN via a vapor phase process took place. Subsequently, dissolution of AlN into molten Si resulted in the formation of an AlN–SiC solid solution from the Al–N–Si–C liquid phase. However, below 1850 °C, the resulting solid solution of 4AlN–3SiC was not fully crystallized. Combustion temperatures above or equal to 1850 °C were required to prepare a highly crystallized solid solution with a morphology exhibiting hexagonal platelets. Based on these observations, a model for the formation of AlN–SiC solid solution is proposed.
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8

Ashok, Anchu, Anand Kumar y Faris Tarlochan. "Surface Alloying in Silver-Cobalt through a Second Wave Solution Combustion Synthesis Technique". Nanomaterials 8, n.º 8 (9 de agosto de 2018): 604. http://dx.doi.org/10.3390/nano8080604.

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Herein, we report the synthesis of silver-cobalt nanopowders using three different modes of solution combustion synthesis, and we present the effects of the synthesis conditions on particle morphology. The synthesized nanoparticles were characterized using X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), UV-Visible spectrophotometer (UV-vis), Transmission electron microscopy (TEM), and X-Ray Photoelectron Spectroscopy (XPS) to understand the structural and elemental properties. When Co is synthesized over Ag in a second wave of combustion, peak shifts observed in XRD and XPS show a change in the cell parameters and prove the existence of a strong electronic interaction between Ag and Co. Better control of mixing and alloying through the second wave combustion synthesis mode (SWCS) was evident. The sequence of combustion affects the structure and composition of the material. SWCS reduces the amount of carbon content, as compared to single-stage combustion, and the combustion of carbon is followed by a rearrangement of atoms.
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9

Ianoş, Robert. "An efficient solution for the single-step synthesis of 4CaO·Al2O3·Fe2O3 powders". Journal of Materials Research 24, n.º 1 (enero de 2009): 245–52. http://dx.doi.org/10.1557/jmr.2009.0019.

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Single-phase nanocrystalline 4CaO·Al2O3·Fe2O3 powders were prepared directly from the combustion reaction using a new cost-effective, time-saving, and environmentally friendly version of solution combustion synthesis. Instead of a single fuel, a fuel mixture of urea and β-alanine was used. It was shown by x-ray diffraction, energy-dispersive x-ray analysis, thermogravimetric analysis, and optical microscopy that this new version of the solution combustion synthesis allows the maximization of the exothermic effect associated with the combustion reaction. On the other hand, it was shown that the traditional version of combustion synthesis involving the use of a single fuel, such as urea or β-alanine, does not ensure the formation of Ca4Al2Fe2O10 unless subsequent thermal treatments are applied. It was suggested that the occurrence of combustion reactions cannot be regarded only in terms of adiabatic temperature, as the kinetic aspects overrule the thermodynamic ones.
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10

Amosov, Aleksandr P., Vladislav A. Novikov, Egor M. Kachkin, Nikita A. Kryukov, Alexander A. Titov, Ilya M. Sosnin y Dmitry L. Merson. "The Solution Combustion Synthesis of ZnO Powder for the Photodegradation of Phenol". Ceramics 5, n.º 4 (3 de noviembre de 2022): 928–46. http://dx.doi.org/10.3390/ceramics5040067.

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Nanoscale and submicron powder of zinc oxide (ZnO) is known as a highly efficient photocatalyst that is promising for solving the problem of wastewater treatment from toxic organic pollutants including phenol and its derivatives. The results of laboratory studies of ZnO preparation by a simple, energy-saving, and highly productive method of solution–combustion synthesis from a mixture of solutions of zinc nitrate and glycine, as well as the use of the ZnO powder synthesized by combustion for the photocatalytic decomposition of phenol, are presented. The modes and characteristics of combustion, phase composition, chemical composition, and structure of the combustion product at different ratios of glycine with zinc nitrate were determined. It is shown that calcination at 650 °C reduces the content of carbon impurity in the combustion product to ~1 wt.% and leads to obtaining ZnO powder in the form of porous agglomerates up to 100 μm in size sintered from crystalline nanoscale and submicron ZnO particles with an average crystallite size of 44 nm. The ZnO powder exhibits high photocatalytic activity, leading to the almost complete degradation of phenol in an aqueous solution under the action of ultraviolet irradiation in less than 4 h.
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11

Saito, Genki, Chunyu Zhu y Tomohiro Akiyama. "Solution Combustion Synthesis of Functional Powders". Journal of the Society of Powder Technology, Japan 56, n.º 5 (10 de mayo de 2019): 267–71. http://dx.doi.org/10.4164/sptj.56.267.

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12

Varma, Arvind, Alexander S. Mukasyan, Alexander S. Rogachev y Khachatur V. Manukyan. "Solution Combustion Synthesis of Nanoscale Materials". Chemical Reviews 116, n.º 23 (9 de septiembre de 2016): 14493–586. http://dx.doi.org/10.1021/acs.chemrev.6b00279.

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13

Ianoş, Robert, Ioan Lazău y Cornelia Păcurariu. "Solution combustion synthesis of α-cordierite". Journal of Alloys and Compounds 480, n.º 2 (julio de 2009): 702–5. http://dx.doi.org/10.1016/j.jallcom.2009.02.022.

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14

Eranjaneya, H. y G. T. Chandrappa. "Solution Combustion Synthesis of Nano ZnWO4Photocatalyst". Transactions of the Indian Ceramic Society 75, n.º 2 (2 de abril de 2016): 133–37. http://dx.doi.org/10.1080/0371750x.2016.1181990.

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15

Ashok, Anchu, Anand Kumar, Rahul R. Bhosale, Mohd Ali H. Saleh y Leo J. P. van den Broeke. "Cellulose assisted combustion synthesis of porous Cu–Ni nanopowders". RSC Advances 5, n.º 36 (2015): 28703–12. http://dx.doi.org/10.1039/c5ra03103f.

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Cu–Ni nanoparticles were synthesized using cellulose assisted combustion synthesis method. The BET area, pore volume and pore size of these nanoparticles were higher than nanoparticles synthesized by solution combustion synthesis (SCS) method.
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16

Ioakeimidis, Apostolos, Ioannis T. Papadas, Eirini D. Koutsouroubi, Gerasimos S. Armatas y Stelios A. Choulis. "Thermal Analysis of Metal-Organic Precursors for Functional Cu:ΝiOx Hole Transporting Layer in Inverted Perovskite Solar Cells: Role of Solution Combustion Chemistry in Cu:ΝiOx Thin Films Processing". Nanomaterials 11, n.º 11 (15 de noviembre de 2021): 3074. http://dx.doi.org/10.3390/nano11113074.

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Low temperature solution combustion synthesis emerges as a facile method for the synthesis of functional metal oxides thin films for electronic applications. We study the solution combustion synthesis process of Cu:NiOx using different molar ratios (w/o, 0.1 and 1.5) of fuel acetylacetone (Acac) to oxidizer (Cu, Ni Nitrates) as a function of thermal annealing temperatures 150, 200, and 300 °C. The solution combustion synthesis process, in both thin films and bulk Cu:NiOx, is investigated. Thermal analysis studies using TGA and DTA reveal that the Cu:NiOx thin films show a more gradual mass loss while the bulk Cu:NiOx exhibits a distinct combustion process. The thin films can crystallize to Cu:NiOx at an annealing temperature of 300 °C, irrespective of the Acac/Oxidizer ratio, whereas lower annealing temperatures (150 and 200 °C) produce amorphous materials. A detail characterization study of solution combustion synthesized Cu:NiOx, including XPS, UV-Vis, AFM, and Contact angle measurements, is presented. Finally, 50 nm Cu:NiOx thin films are introduced as HTLs within the inverted perovskite solar cell device architecture. The Cu:NiOx HTL annealed at 150 and 200 °C provided PVSCs with limited functionality, whereas efficient triple-cation Cs0.04(MA0.17FA0.83)0.96 Pb(I0.83Br0.17)3-based PVSCs achieved for Cu:NiOx HTLs for annealing temperature of 300 °C.
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17

Mukasyan, Alexander S. "Solution Combustion as a Promising Method for the Synthesis of Nanomaterials". Advances in Science and Technology 63 (octubre de 2010): 187–96. http://dx.doi.org/10.4028/www.scientific.net/ast.63.187.

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Solution–combustion is an attractive approach to synthesis of nanomaterials for a variety of applications, including catalysts, fuel cells, and biotechnology. In this paper, several novel methods based on the combustion of a reactive solution are presented. These methods include selfpropagating sol-gel combustion and combustion of impregnated inert and active supports. It was demonstrated that, based on the fundamental understanding of the considered combustion processes, a variety of extremely high surface area materials could be synthesized. The controlling process parameters are defined and discussed. Examples of materials synthesized by the above methods are presented. A continuous technology for production of nanopowders by using the solution combustion approach is also discussed.
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18

Wang, Yang, Rishi Kumar, Justin Roller y Radenka Maric. "Synthesis and Characterization of Nano-crystalline La2Zr2O7 Film by Reactive Spray Deposition Technology for Application in Thermal Barrier Coatings". MRS Advances 2, n.º 28 (2017): 1519–25. http://dx.doi.org/10.1557/adv.2017.154.

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AbstractLanthanum zirconate (La2Zr2O7) nano-crystalline films with cubic structure have been successfully prepared by a facile synthesis approach called reactive spray deposition technology (RSDT). La2Zr2O7 nanoparticles are produced by combusting a precursor solution of lanthanum acetylacetonate hydrate and zirconium acetylacetonate dissolved in an organic solvent mixture. The nanoparticles formed during the combustion process are directly deposited onto the substrate. The composition and microstructure of the as-deposited films are extensively characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). The thermal diffusivities of the films are investigated by the means of laser flash method.
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19

Kurbatkina, V. V. y E. A. Levashov. "Regularities of Composite Materials with Micrograded Grain Structure Formation". Materials Science Forum 492-493 (agosto de 2005): 615–20. http://dx.doi.org/10.4028/www.scientific.net/msf.492-493.615.

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Composite carbide materials in Ti-C, Ti-Nb-C, Ti-Zr-C systems were produced by combustion synthesis using the force SHS-pressing technology and investigated. Composition and structure of the synthesis products before and after annealing at 850oC, 1 hour were studied using optical and SEM, X-ray diffraction and Auger Electron Spectroscopy. It was established that SHSproducts consist of two main phases: TiC0.6+β-Ti, (Ti,Nb)C1-х + β-(Ti,Nb), (Ti,Zr)C 1-х + β-(Ti,Zr). Structure of these composite materials presented by carbide phase with a grain size varying 4-8 µm, and surrounded intergranular thin layer of β-Ti solid solution with width less than 1.5 µm. Composition and structure of carbide grains and intergranular phase just after combustion process is not equilibrium: supersaturated solid solutions are formed because of high temperature gradient and combustion velocity. Annealing results in an equalization of the solid solution composition. Carbide grains content precipitations sized 20-200 nm based on solid solution (Me-Ti). Two possible schemes of concentration separation of supersaturated solid solution were discussed: (Ti, Nb)x+yC = (Ti, Nb)xC 1-х + y(Nb-Ti) and (Ti, Zr)x+y C = (Ti, Zr)xC1-х + y(Ti-Zr). Lattice parameter of the intraganular phase differs from the matrix ones. Graded distribution of Nb and Zr alloying elements inside the carbide grains was observed. The developed composite materials strengthened by nano- or microsized particles are attractive for high-temperature applications.
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20

Khaliullin, Sh M., V. D. Zhuravlev, O. V. Russkikh, A. A. Ostroushko y V. G. Bamburov. "Solution-combustion synthesis and eletroconductivity of CaZrO3". International Journal of Self-Propagating High-Temperature Synthesis 24, n.º 2 (abril de 2015): 83–88. http://dx.doi.org/10.3103/s106138621502003x.

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21

Hossain, M. K., E. Kecsenovity, A. Varga, M. Molnár, C. Janáky y K. Rajeshwar. "Solution Combustion Synthesis of Complex Oxide Semiconductors". International Journal of Self-Propagating High-Temperature Synthesis 27, n.º 3 (julio de 2018): 129–40. http://dx.doi.org/10.3103/s1061386218030032.

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22

Khaliullin, Sh M., I. S. Popov y V. D. Zhuravlev. "SCSTempCal Software for Solution-Combustion-Synthesis Applications". International Journal of Self-Propagating High-Temperature Synthesis 29, n.º 2 (abril de 2020): 87–95. http://dx.doi.org/10.3103/s1061386220020077.

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23

de Andrade, M. J., M. D. Lima, R. Bonadiman y C. P. Bergmann. "Nanocrystalline pirochromite spinel through solution combustion synthesis". Materials Research Bulletin 41, n.º 11 (noviembre de 2006): 2070–79. http://dx.doi.org/10.1016/j.materresbull.2006.04.002.

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24

Ghosh, Samir K., Someswar Datta y Sujit K. Roy. "Solution Combustion Synthesis of Calcium Hydroxyapatite Nanoparticles". Transactions of the Indian Ceramic Society 63, n.º 1 (enero de 2004): 27–32. http://dx.doi.org/10.1080/0371750x.2004.11012125.

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25

Khort, Alexander, Valentin Romanovski, Vasilina Lapitskaya, Tatyana Kuznetsova, Khabib Yusupov, Dmitry Moskovskikh, Yulyan Haiduk y Kirill Podbolotov. "Graphene@Metal Nanocomposites by Solution Combustion Synthesis". Inorganic Chemistry 59, n.º 9 (13 de abril de 2020): 6550–65. http://dx.doi.org/10.1021/acs.inorgchem.0c00673.

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26

LIMSAY, R. H., R. A. TAYADE, C. B. TALWATKAR, S. P. YAWALE, S. S. YAWALE y R. S. BHAVSAR. "SOLUTION COMBUSTION SYNTHESIS OF CaZrO3 USING MIXED FUEL". International Journal of Modern Physics B 24, n.º 31 (20 de diciembre de 2010): 6107–13. http://dx.doi.org/10.1142/s0217979210056153.

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With the advent of nanotechnology, methods of synthesis have attained immense importance since it governs particle size of the materials. In this paper, we report synthesis of CaZrO 3 by simple and energy efficient method that produced ultra fine powder having particle size in the nanometers. Synthesis of CaZrO 3 was carried out using corresponding metal nitrates and mixed fuels i.e., glycine and urea at a temperature less than 500°C. The reaction was highly exothermic in nature. The product obtained was voluminous and foamy. The as synthesized CaZrO 3 is crystalline in nature. It required no further heating. The compound was indexed using standard indexing procedure and the lattice constants matches completely with those reported in the literature. Differential Thermal Analysis (DTA) and Thermo Gravimetric Analysis (TGA) results shows that the material is highly stable internally during the whole range of temperature studied i.e., up to 1000°C. The powder density of the material was calculated to be 5.6393 g cm -1. BET surface area was found to be 11.505 m 2/ g . The particle size was calculated using density and BET surface area values. The particle size of the as synthesized CaZrO 3 was found to be 92 nm. The product was further characterized using Scanning Electron Microscope and electrical conductivity.
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27

Wen, Wei y Jin-Ming Wu. "Nanomaterials via solution combustion synthesis: a step nearer to controllability". RSC Adv. 4, n.º 101 (2014): 58090–100. http://dx.doi.org/10.1039/c4ra10145f.

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28

Jung, Choong-Hwan, Young-Min Han y Sang-Jin Lee. "Characteristics of Porous YAG:Ce Nano-Powders Phosphor Fabricated by a Solution Combustion Synthesis". Journal of Nanoscience and Nanotechnology 21, n.º 9 (1 de septiembre de 2021): 4886–90. http://dx.doi.org/10.1166/jnn.2021.19259.

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A cerium-doped YAG (Y3Al5O12) phosphor is used as a rare-earth element phosphor for blue light absorption and yellow light emission for a white light source. A solution combustion synthesis, which is a method for producing nano-powder, is a reaction that is spontaneous ignition by reaction heat released through oxidation/reduction reaction between metal nitrate and fuel. Since the reaction speed is fast and it does not go through a separate firing process, it is a method of easily synthesizing nano-powder by simple process. In this study, YAG:Ce nano-powders were prepared by using various fuels in the combustion synthesis method. Depending on the kind of the additive fuel, the reaction of the combustion synthesis process was different, and the shape of the powder particles according to the fuels was also different. The agglomerated particles of nanoparticles were observed and the characteristics of YAG:Ce powders synthesized under various conditions were analyzed.
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Cai, Binxiang, Huazhang Liu y Wenfeng Han. "Solution Combustion Synthesis of Fe2O3-Based Catalyst for Ammonia Synthesis". Catalysts 10, n.º 9 (7 de septiembre de 2020): 1027. http://dx.doi.org/10.3390/catal10091027.

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Fe2O3-based catalysts were prepared by solution combustion synthesis (SCS) with metal nitrates (Fe, K, Al, Ca) as the precursors and glycine as the fuel. The activities of catalysts were evaluated in terms of ammonia synthesis reaction rate in a fixed bed reactor similar to the industrial reactors. The results indicate that the precursor of catalyst prepared by SCS is Fe2O3 which facilitates the high dispersion of promoters to provide high activity. The catalysts exhibit higher activity for ammonia synthesis than that of traditional catalysts, and the reaction rate reaches 138.5 mmol g−1 h−1. Fe2O3 prepared by SCS could be favorable precursor for ammonia synthesis catalyst. The present study provides a pathway to prepare catalyst for ammonia synthesis.
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30

Quino, Candell Grace Paredes, Juan Paolo Bermundo, Mutsunori Uenuma y Yukiharu Uraoka. "Performance Enhancement of Solution-Processed SixSnyO TFTs using Solution Combustion Synthesis". ECS Transactions 109, n.º 6 (30 de septiembre de 2022): 95–98. http://dx.doi.org/10.1149/10906.0095ecst.

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In this work, we improved the performance of SixSnyO TFTs using solution combustion synthesis. The mobility of SixSnyO TFTs was significantly improved using SCS which confirms that SCS is beneficial in improving the quality of SixSnyO films. The carbon impurities in the SCS film was also reduced as confirmed by SIMS. The linear mobility for SCS TFT is 3.14 cm2/V s while the sol-gel TFT is 0.08 cm2/V s. We also successfully lowered down the processing temperature to 300 °C using a simple combustion process.
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31

Gu, Siyong, Mingli Qin, Houan Zhang, Jidong Ma, Haoyang Wu y Xuanhui Qu. "Facile solution combustion synthesis of MoO2 nanoparticles as efficient photocatalysts". CrystEngComm 19, n.º 43 (2017): 6516–26. http://dx.doi.org/10.1039/c7ce01611e.

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Prakasha, K. R. y A. S. Prakash. "A time and energy conserving solution combustion synthesis of nano Li1.2Ni0.13Mn0.54Co0.13O2 cathode material and its performance in Li-ion batteries". RSC Advances 5, n.º 114 (2015): 94411–17. http://dx.doi.org/10.1039/c5ra19096g.

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Romanovsky, Valentin I., Alexander A. Hort, Kirill B. Podbolotov, Nikolay Yu Sdobnyakov, Vladimir S. Myasnichenko y Denis N. Sokolov. "ONE-STEP SYNTHESIS OF POLYMETALLIC NANOPARTICLES IN AIR INVIRONMENT". IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 61, n.º 9-10 (22 de octubre de 2018): 42–47. http://dx.doi.org/10.6060/ivkkt.20186109-10.5867a.

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In this work, we studied possibility to obtain bimetallic nanopowders by our modified solution combustion synthesis method using citric acid as a fuel. Stoichiometric amounts of metal nitrates with metal to metal ratios 1:1 and 1:2 and fuels with final oxidizer to fuel ratio of 1.75 were used as initial components to prepare aqueous solutions. The almost complete absence of metal oxide phases was confirmed by energy-dispersive X-ray spectroscopy. The X-ray diffraction analysis of obtained materials showed that all samples are pure bimetallic nanopowders with distorted cubic crystal structure of each metal. According to high resolution transmission electron microscopy the mean diameter of metallic particles are about 10 nm for all nanopowders. The calculated interplanar distances of crystals of metal particles as well as detailed scanning transmission electron microscopy studying showed uniform distribution of different metal spices into nanoparticles. Thus, we can conclude the nanopowders are bimetallic particles with co-integrated crystal structures of different metalic spices. We suppose, the possibility of solution combustion synthesis of bimetallic nanopowder in the air environment is due to a combination of type and amount of the fuels as well as technological conditions of the synthesis. These lead to rapid combustion process at low temperature. In addition, protective inert atmosphere appears above freshly synthesized metal nanopowders during thermal decompositions of the fuels that eventually prevent metal oxidation. Modified SCS method could be successfully used for one-step synthesis of complex oxide-oxide and metal-oxide core-shell nanostructures. For citation: Romanovskii V.I., Khort A.A., Podbolotov K.B., Sdobnyakov N.Y., Myasnichenko V.S., Sokolov D.N. One-step synthesis of polymetallic nanoparticles in air invironment. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2018. V. 61. N 9-10. P. 42-47
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34

Ullah, Sana, Rita Branquinho, Tiago Mateus, Rodrigo Martins, Elvira Fortunato, Tahir Rasheed y Farooq Sher. "Solution Combustion Synthesis of Transparent Conducting Thin Films for Sustainable Photovoltaic Applications". Sustainability 12, n.º 24 (13 de diciembre de 2020): 10423. http://dx.doi.org/10.3390/su122410423.

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Sunlight is arguably the most promising continuous and cheap alternative sustainable energy source available at almost all living places of the human world. Photovoltaics (PV) is a process of direct conversion of sunlight into electricity and has become a technology of choice for sustainable production of cleaner and safer energy. The solar cell is the main component of any PV technology and transparent conducting oxides (TCO) comprising wide band gap semiconductors are an essential component of every PV technology. In this research, transparent conducting thin films were prepared by solution combustion synthesis of metal oxide nitrates wherein the use of indium is substituted or reduced. Individual 0.5 M indium, gallium and zinc oxide source solutions were mixed in ratios of 1:9 and 9:1 to obtain precursor solutions. Indium-rich IZO (A1), zinc-rich IZO (B1), gallium-rich GZO (C1) and zinc-rich GZO (D1) thin films were prepared through spin coating deposition. In the case of A1 and B1 thin films, electrical resistivity obtained was 3.4 × 10−3 Ω-cm and 7.9 × 10−3 Ω-cm, respectively. While C1 films remained insulating, D1 films showed an electrical resistivity of 1.3 × 10−2 Ω-cm. The optical transmittance remained more than 80% in visible for all films. Films with necessary transparent conducting properties were applied in an all solution-processed solar cell device and then characterized. The efficiency of 1.66%, 2.17%, and 0.77% was obtained for A1, B1, and D1 TCOs, respectively, while 6.88% was obtained using commercial fluorine doped SnO2: (FTO) TCO. The results are encouraging for the preparation of indium-free TCOs towards solution-processed thin-film photovoltaic devices. It is also observed that better filtration of precursor solutions and improving surface roughness would further reduce sheet resistance and improve solar cell efficiency.
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35

Yergaziyeva, G., N. Makayeva, M. Anissova, K. Dossumov, M. Mambetova, Z. Shaimerden, A. Niyazbaeva y E. Akkazin. "Effect of Preparation Method on the Activity of Fe2O3-NiO/γ-Al2O3 Catalyst in Decomposition of Methane". Eurasian Chemico-Technological Journal 24, n.º 3 (10 de octubre de 2022): 221–27. http://dx.doi.org/10.18321/ectj1435.

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The effect of method preparation on the activity of Fe2O3-NiO/γ-Al2O3 catalyst was investigated in process decomposition of methane. Fe2O3-NiO/γ-Al2O3 catalyst was prepared by impregnation and solution combustion methods. The samples were characterized by X-ray phase analysis (XRD), temperature-programmed hydrogen reduction (TPR-H2), BET and Raman spectroscopy. It has been shown that the method of preparation plays an important role in regulating the textural and morphological properties of catalysts and provides a difference in their catalytic activity. The synthesis of the Fe2O3-NiO/γ-Al2O3 catalyst by the solution combustion method, in comparison with the capillary impregnation method, leads to the formation of a large amount of FeNi and FeAl2O4 solid solutions, which ensured good catalytic activity at high temperatures. The Fe2O3-NiO/γ-Al2O3 catalyst synthesized by the solution combustion method demonstrated good activity with a hydrogen yield of 52% within 150 min of the reaction without any deactivation. According to the results of Raman spectroscopy, graphene-like carbon was obtained on the surface of the catalysts. On the catalyst of Fe2O3-NiO/γ-Al2O3 (СI) synthesized by capillary impregnation, 4‒5 layer graphene on Fe2O3-NiO/γ-Al2O3 (SC)-6-7 layer graphene is formed.
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36

Abebe, Buzuayehu, Bontu Kefale y Dereje Tsegaye Leku. "Synthesis of copper–silver–zinc oxide nanocomposites for 4-nitrophenol reduction: doping and heterojunction". RSC Advances 13, n.º 7 (2023): 4523–29. http://dx.doi.org/10.1039/d2ra07845g.

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37

Thoda, Olga, Galina Xanthopoulou, George Vekinis y Alexander Chroneos. "The Effect of the Precursor Solution’s Pretreatment on the Properties and Microstructure of the SCS Final Nanomaterials". Applied Sciences 9, n.º 6 (21 de marzo de 2019): 1200. http://dx.doi.org/10.3390/app9061200.

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Nanostructured nickel-based catalysts were produced by solution combustion synthesis and it was found that their properties and structure depended on the pretreatment of the precursor solution. X-ray diffraction, N2 adsorption, and an infrared high-speed camera were used to follow the various synthesis steps and to characterize the obtained catalysts, while their catalytic activity was determined in the hydrogenation of maleic acid. It was determined that the amount of water used and the heating of the precursor solution under mild stirring up to 70 °C influenced the nickel nitrate–glycine–water complexes that were formed in the precursor solution in the form of dendrites. These play a key role in the solution combustion synthesis (SCS) reaction mechanism and in particular in the formation of nickel-based catalysts. Understanding the interrelationships between the processing parameters and the ensuing powder properties allowed an efficient optimization of the catalytic performance.
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38

Pribytkov, G. A., V. V. Korzhova, I. A. Firsina, A. V. Baranovskii y E. N. Korosteleva. "Study of gasless combustion products of Ti – Si – Al powder mixtures". Physics and Chemistry of Materials Treatment 1 (2022): 57–65. http://dx.doi.org/10.30791/0015-3214-2022-1-57-65.

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The combustion synthesis products in titanium, silicon and aluminum powder mixtures under the wave mode combustion are investigated by X-ray diffraction analysis and optical metallography. The synthesis products contain titanium silicide Ti5Si3 and titanium aluminide TiAl3, the ratio of which depends on the content of aluminum powder in the reaction mixtures. The combustion temperature of the mixtures decreases with an increase in the aluminum content. This is a consequence of the substitution of titanium aluminide in the synthesis products for titanium silicide, which has a multiple negative formation enthalpy compared to that of the silicide. Using ideas about the features of the growth of silicide and aluminide nuclei in a liquid metal solution, the effect of the combustion temperature on the dispersion of the structure of the synthesis products is discussed.
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39

Khaliullin, Sh M., V. D. Zhuravlev y V. G. Bamburov. "Solution-combustion synthesis of oxide nanoparticles from nitrate solutions containing glycine and urea: Thermodynamic aspects". International Journal of Self-Propagating High-Temperature Synthesis 25, n.º 3 (julio de 2016): 139–48. http://dx.doi.org/10.3103/s1061386216030031.

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40

Zhuravlev, V. D., L. V. Ermakova, Sh M. Khaliullin, K. V. Nefedova y E. A. Sherstobitova. "Solution-Combustion Synthesis of 4CuO/Al2O3 Composite from Starting Solutions Containing Copper Acetate as Ballast". International Journal of Self-Propagating High-Temperature Synthesis 30, n.º 3 (julio de 2021): 132–38. http://dx.doi.org/10.3103/s1061386221030110.

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41

Al-Amani, Umar, S. Sreekantan, Ahmad Fauzi, A. R. Khairunisak y K. Warapong. "Soft combustion technique: Solution combustion synthesis and low-temperature combustion synthesis; to prepare Bi4Ti3O12 powders and bulk ceramics". Science of Sintering 44, n.º 2 (2012): 211–21. http://dx.doi.org/10.2298/sos1202211a.

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Bi4Ti3O12 (BTO) powders were synthesized using soft combustion techniques, specifically known as Solution Combustion Synthesis (SCS) and Low-temperature Combustion Synthesis (LCS). XRD results showed that the single phase BTO was obtained following calcinations at 800?C for the sample prepared using SCS; compared to after combustion, for the sample prepared using LCS. The TG/DTA showed a combustion temperature of around 252 - 280?C, which became stable with a single phase BTO at 500?C and above. Sintering was carried out at 1,100?C for 3 h, to determine the microstructures, grain orientation, relative density, dielectric, and ferroelectric properties, of the bulk ceramics. It was found that the bulk ceramics prepared using SCS exhibited elongated-like grains, strong (117)-preferred grain orientation, a relative density of 93.3%, ?r = 320 - 360, tan ? = 0.03 - 0.1, Pr = 6.8 ?C/cm2, and Ec = 20 kV/cm. Meanwhile, the bulk ceramics prepared using LCS showed plate-like grains, strong c-preferred grain orientation, a relative density of 83%, ?r = 143 - 195, tan ? = 0.01 - 0.38, Pr = 5.9 ?C/cm2, and Ec = 30 kV/cm.
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42

Li, Ruinian, Fuliang Zhu, Liuxinglian, Mingjun Xiao, Yanshuang Meng y Yue Zhang. "Solution combustion synthesis of mesoporous mesh-structured Co3O4/C composites as anode materials for lithium storage". Materials Express 10, n.º 6 (1 de junio de 2020): 819–26. http://dx.doi.org/10.1166/mex.2020.1706.

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A mesoporous mesh Co3O4/C composite was synthesized by using a combustion synthesis (SCS) method with mixed fuel solution. The combustion reactivity can be controlled through adjusting the fuel composition. During combustion reaction, with the release of gas and the growth of Co3O4 particles, residual carbon and Co3O4 formed porous network that significantly improved the rate performance of the Co3O4/C composite. After 200 cycles, the Co3O4/C composite delivered reversible discharge/charge specific capacity of 1120/1025, 965/930, 889/837, and 772/706 mAh g-1 at current densities of 1 C, 2 C, 3 C, and 5 C, respectively. This work provides a guide for the synthesis of anode materials by using SCS with low energy consumption.
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43

Carlos, Emanuel, Spilios Dellis, Nikolaos Kalfagiannis, Loukas Koutsokeras, Demosthenes C. Koutsogeorgis, Rita Branquinho, Rodrigo Martins y Elvira Fortunato. "Laser induced ultrafast combustion synthesis of solution-based AlOx for thin film transistors". Journal of Materials Chemistry C 8, n.º 18 (2020): 6176–84. http://dx.doi.org/10.1039/d0tc01204a.

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44

Adhikari, Sangeeta, Aditi Banerjee, Neerugatti KrishnaRao Eswar, Debasish Sarkar y Giridhar Madras. "Photocatalytic inactivation of E. Coli by ZnO–Ag nanoparticles under solar radiation". RSC Advances 5, n.º 63 (2015): 51067–77. http://dx.doi.org/10.1039/c5ra06406f.

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45

Chu, Ai Min, Ming Li Qin, Bao Rui Jia y Hui Feng Lu. "Effect of Carbon Source Content on the Carbothermal Synthesis of AlN Powders Using a Combustion Synthesis Precursor". Advanced Materials Research 554-556 (julio de 2012): 526–31. http://dx.doi.org/10.4028/www.scientific.net/amr.554-556.526.

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AlN powders were synthesized by carbothermal reduction method using a combustion synthesis precursor derived from aluminum nitrate (oxidizer), glucose (carbon source), and urea (fuel) mixed solution. Effects of carbon source content on the combustion temperature of solutions, the particle size and morphology of the precursors and the synthesized AlN were studied in detail. The results indicated that a regular variation in the particle size and morphology of precursors had been observed with the increasing molar ratio of glucose to aluminum nitrate (C/Al). The products prepared with (C/Al=8–12), calcined at 1500 oC for 2 h, could have completed the nitridation reaction, while the nitridation products prepared with (C/Al=4 and 16) are opposite. The nitridation products prepared with (C/Al=8–12), calcined at 1500 oC for 2 h, are comprised of well-distributed spherical particles of AlN with the average size ranging from 50 to 80 nm.
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46

Gupta, Manik y Balwinder S. Randhawa. "Synthesis of Mixed Rb-Zn Ferrites by Novel Solution Combustion Method and Investigation on Their Microstructural Properties". Advances in Physical Chemistry 2011 (4 de enero de 2011): 1–5. http://dx.doi.org/10.1155/2011/247320.

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Microstructural studies have been made on mixed rubidium nanoferrites of varying compositions, that is, prepared by solution combustion method from stoichiometric aqueous solutions of metal nitrates and ethylene glycol. The combustion method is rapid and approach direct conversion from the molecular mixture of precursor solution to the fine nanoparticles of oxide product. The ferrites obtained have been characterized by powder XRD, transmission electron microscopy, and EDXRF studies. Powder X-ray diffraction analysis shows the formation of single-phase structure. The lattice parameter “” has been found to increase with increasing Zn content. Both theoretical and experimental densities show a decreasing trend with decrease in molecular weight. The calculated value of the porosity has been found to be quite low which is a characteristic requirement of good-quality ferrite materials. TEM micrographs indicate the formation of nanosized ferrite particles which is in agreement with the size calculated from XRD data.
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47

Sekar, Michael M. A., Arvind Halliyal y K. C. Patil. "Synthesis, characterization, and properties of lead-based relaxor ferroelectrics". Journal of Materials Research 11, n.º 5 (mayo de 1996): 1210–18. http://dx.doi.org/10.1557/jmr.1996.0155.

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Lead-based relaxor ferroelectrics such as Pb(Mg1/3Nb2/3)O3 (PMN), Pb(Zn1/3Nb2/3)O3 (PZN), and their solid solutions with BaTiO3 and PbTiO3 have been prepared by a solution combustion process which involves metal nitrates/oxalate and tetraformal trisazine (TFTA) at 350 °C. Thermal evolution of perovskite relaxors has been investigated at different temperatures of calcination using the powder x-ray diffraction method. Particles are fine and sinter-active at low temperature (1050 °C). Both particulate and dielectric properties are compared.
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48

Khort, Alexander, Sergey Roslyakov y Pavel Loginov. "Solution combustion synthesis of single-phase bimetallic nanomaterials". Nano-Structures & Nano-Objects 26 (abril de 2021): 100727. http://dx.doi.org/10.1016/j.nanoso.2021.100727.

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49

Zhang, Cheng, Yi Kun Liao y Dan Yu Jiang. "Synthesis of Ultrafine GSAG:Ce Phosphor by Solution Combustion". Key Engineering Materials 368-372 (febrero de 2008): 386–87. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.386.

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Ultrafine cerium-doped GSAG phosphor powders are prepared by a solution combustion process using glycine and urea as fuel. Single-phase cubic GSAG:Ce crystalline powder is obtained by calcining the as-synthesized amorphous materials at 800oC and no intermediate phase is observed. Transmission electronic microscope morphology shows that the resultant GSAG:Ce powders have uniform size and good homogeneity. The photoluminescence spectra of Ce3+ substituted for Ce3+ in GSAG has been measured on samples calcined at 1000oC.
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50

Mukasyan, A. S. y P. Dinka. "Novel approaches to solution-combustion synthesis of nanomaterials". International Journal of Self-Propagating High-Temperature Synthesis 16, n.º 1 (marzo de 2007): 23–35. http://dx.doi.org/10.3103/s1061386207010049.

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