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Journal articles on the topic 'Citrate-gel auto combustion method'

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Published: 3 June 2025
Last updated: 31 July 2025

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1

Sun, Jie, Zhen Hua Zhang, and Xiao Hui Cao. "Synthesis and Dielectric Property of Perovskite-Type LaMnO3 Nanoparticle." Solid State Phenomena 121-123 (March 2007): 967–70. http://dx.doi.org/10.4028/www.scientific.net/ssp.121-123.967.

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The perovskite-type nanocrystal LaMnO3 was prepared using sol-gel auto-combustion method with citric acid as the chelating agent. Some analytical methods consisted of FT-IR, XRD, TEM and wave-guide method were used to characterize the gel and the final products. The metal ions coordination compound, obtained from nitrate and citrate, underwent an auto-combustion process and voluminous ashes formed when calcining the complex in the air. From the result of the dielectric properity. It was shown that the dielectric coefficient curves and dielectric loss curve of LaMnO3 nanocrystals were smooth in
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2

Megha, Unikoth, Karakat Shijina, and George Varghese. "Nanosized LaCo0.6Fe0.4O3 perovskites synthesized by citrate sol gel auto combustion method." Processing and Application of Ceramics 8, no. 2 (2014): 87–92. http://dx.doi.org/10.2298/pac1402087m.

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LaCo0.6Fe0.4O3 (LCFO) nanopowder was synthesized from constituent metal nitrates, citric acid and ethylene glycol by citrate sol gel autocombustion method and calcined at different temperatures. The powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX) and Fourier transform infrared spectra (FTIR), whereas dielectric properties were investigated with LCR-meter. The FTIR spectra, taken for the xerogel and the sample calcined at 1000?C, confirm that the organic groups were removed during calcination and oxide structure
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3

Devi, Sujatha P., and H. S. Maiti. "A modified citrate gel route for the synthesis of phase pure Bi2Sr2CaCu2O8 superconductor." Journal of Materials Research 9, no. 6 (1994): 1357–62. http://dx.doi.org/10.1557/jmr.1994.1357.

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A simple method for the bulk synthesis of 80 K bismuth-based superconducting phase (2212) is described. It employs a modified citrate gel route giving rise to an auto-ignited combustion process. The precursor ash obtained after combustion is further calcined at 800 °C to produce the desired superconducting powder with excellent homogeneity and fineness, leading to good sinterability and fairly sharp transition temperature. For a particular citrate-nitrate ratio, the nature of combustion of the gels containing two different bases has been compared. The thermal decomposition characteristics of t
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4

Abdellatif, M. H., and A. A. Azab. "Fractal Growth of Ferrite Nanoparticles Prepared by Citrate-Gel Auto-Combustion Method." Silicon 10, no. 5 (2018): 1991–97. http://dx.doi.org/10.1007/s12633-017-9711-1.

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5

Barati, M. R., S. A. Seyyed Ebrahimi, and A. Badiei. "Influence of Different Calcination Conditions on the Microstructure and Phase Constitution of Nickel-Zinc Ferrite Nanocrystalline Powders Prepared by a Sol-Gel Auto-Combustion Method." Key Engineering Materials 368-372 (February 2008): 598–600. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.598.

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In this work, nickel-zinc ferrite nanocrystalline powder has been prepared by a sol-gel autocombustion technique using nitrate-citrate gel obtained from metal nitrates and citric acid solution. Characterization of the nitrate-citrate gel, as-burnt powder and calcined powder at different calcination conditions were investigated by using XRD, FTIR and SEM techniques. The results revealed that the nitrate-citrate gel exhibits a self-propagating behavior after ignition and showed that the different calcination conditions affect the crystallite size of the synthesized powder as well as its phase co
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6

Bao, Li, Xi Wei Qi, Bo Ni, Min Zhang, and Rui Bin Mei. "BiFeO3 Powders Synthesized by Different Sol-Gel Methods." Key Engineering Materials 697 (July 2016): 84–88. http://dx.doi.org/10.4028/www.scientific.net/kem.697.84.

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The multiferroic BiFeO3 powders with perovskite structure were synthesized by sol-gel auto-combustion and conventional sol-gel methods, respectively. As-prepared powders were characterized by XRD, SEM and VSM techniques to investigate phase structure, microstructure and magnetic properties. The results show that the pure phase BiFeO3 powders are obtained successfully by sol-gel auto-combustion after calcining at 650°C for 2h and leaching by HNO3. Compared with conventional sol-gel method which got pure phase BiFeO3 powders at 800°C for 3h, the sol-gel auto-combustion technique can get more pur
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7

Raghasudha, M. "Characterization Of Nano-Structured Magnesiumchromium Ferrites Synthesized By Citrate-Gel Auto Combustion Method." Advanced Materials Letters 4, no. 12 (2013): 910–16. http://dx.doi.org/10.5185/amlett.2013.5479.

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8

Raghasudha, M., D. Ravinder, and P. Veerasomaiah. "Characterization of Chromium Substituted Cobalt Nano Ferrites Synthesized by Citrate-Gel Auto Combustion Method." Advances in Materials Physics and Chemistry 03, no. 02 (2013): 89–96. http://dx.doi.org/10.4236/ampc.2013.32014.

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9

Boddolla, Sathish, and D. Ravinder. "Eu3+ Doped CoFe2O4 Nanoparticles with XRD and FTIR Analysis." Journal for Research in Applied Sciences and Biotechnology 3, no. 2 (2024): 135–38. http://dx.doi.org/10.55544/jrasb.3.2.23.

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Pure and Eu3+ doped cobalt ferrite nanoparticles with the formula CoEuxFe2-xO4(x = 0.00,0.10) were synthesized by citrate gel auto combustion method. X-ray diffraction analysis validated both the phase formation and purity of the synthesized nanoparticles. The Fourier-transform infrared (FTIR) spectra of the sample were meticulously recorded within the spectral range of 200-1000 cm^-1. This analysis provided insights into the formation of the spinel structure.
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10

M. Venkata Narayana. "Effect of Sm3+ doped Ni-Cd Nano ferrite synthesis and structural characterization by citrate-gel auto combustion method." International Journal of Science and Research Archive 7, no. 2 (2022): 326–31. http://dx.doi.org/10.30574/ijsra.2022.7.2.0284.

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Ferrite nano particles of basic composition Ni Cd Smx Fe2-xO4(0.0 ≤ x ≤ 0.05, X=0.01) where synthesized by citrate-gel auto combustion method have investigated. X-ray diffraction profile indicates that the samples are in single phase structure for the sample without Sm content. For the samples with Sm ions, some diffraction peaks appeared which belongs to the orthorhombic phase structure further, the XRD have been used calculated the lattice parameter, density and grain size. The particle size of the starting powder composition varied from 30 nm to 45 nm. The values of lattice parameter (a) de
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11

.Sowmya, G. "Synthesis and Characterization of Samarium-Doped Nickel-Cobalt Ferrite Nanoparticles for Advanced Magnetic Applications." INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 07 (2025): 1–9. https://doi.org/10.55041/ijsrem51168.

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Nanoparticles of samarium-doped nickel-cobalt ferrites with the formula Ni₀.₇Co₀.₃Fe₂₋ₓSmₓO₄ (x = 0.00 and 0.015) were successfully synthesized using the citrate gel auto-combustion method. X-ray diffraction analysis confirmed the formation of a pure cubic spinel phase, with a slight reduction in lattice constant from 8.3502 Å to 8.3319 Å as samarium content increased, indicating the substitution of Sm³⁺ ions into the spinel lattice. The crystallite size decreased from approximately 35.2 nm for the undoped sample to 23.5 nm for the doped sample, reflecting the influence of samarium on grain gr
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12

Kumar, K., and CH Chakra. "Synthesis and Structural Characterization of ZnCr2O4 Nano Particles Prepared by Citrate-gel Auto Combustion Method." Asian Journal of Physical and Chemical Sciences 2, no. 2 (2017): 1–7. http://dx.doi.org/10.9734/ajopacs/2017/34683.

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13

Aravind, G., B. Nehru, R. Vijaya Kumar, and D. Ravinder. "Dielectric Properties of Nano Crystalline Cobalt Substituted Lithium Ferrites by Citrate-gel Auto Combustion Method." Materials Today: Proceedings 3, no. 6 (2016): 1423–28. http://dx.doi.org/10.1016/j.matpr.2016.04.024.

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14

K., Vijaya Kumar, and Shilpa Chakra CH. "Synthesis and Structural Characterization of ZnCr2O4 Nano Particles Prepared by Citrate-gel Auto Combustion Method." Asian Journal of Physical and Chemical Sciences 2, no. 2 (2017): 1–7. https://doi.org/10.9734/AJOPACS/2017/34683.

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Zinc chromite nano particles (NPs) have been synthesized via Citrate-gel auto combustion method using citric acid as chelating agent. Structural characterization of the prepared sample was carried out using X-ray diffraction analysis, FESEM and EDS analysis, dynamic light scattering (DLS) analysis and FTIR spectroscopic analysis. XRD analysis confirms the formation spinel oxide with a crystallite size of 36 nm as calculated using Debye-scherrer’s formula. FTIR studies also confirm the formation of spinel structure. Structural morphology was studied by field emission scanning electron microscop
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15

SHAHMIRZAEI, M., S. A. SEYYED EBRAHIMI, and R. DEHGHAN. "SYNTHESIS OF THE NANOCRYSTALLINE NICKEL FERRITE BY A NOVEL MECHANO SOL–GEL AUTO-COMBUSTION METHOD." Modern Physics Letters B 25, no. 11 (2011): 855–61. http://dx.doi.org/10.1142/s0217984911026516.

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In this work, a novel method of mechano sol–gel auto-combustion has been developed for production of single phase nickel ferrite nanocrystalline powder, consisting of a sol–gel auto-combustion synthesis followed by a high energy milling process before calcination. Sol–gel auto-combustion was carried out using a gel including citric acid as a reductant and metal nitrates as oxidants. This gel exhibited a self-propagating behavior after ignition in air. The effects of the intermediate high energy milling on the physical properties of the final product after calcination were investigated. The res
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16

Periyasamy, Thirukumaran, Shakila Parveen Asrafali, and Jaewoong Lee. "Tailoring the Surface of Sintered Magnesia–Chromia Catalyst with a Sol–Gel Auto-Combustion Technique." Processes 12, no. 9 (2024): 2019. http://dx.doi.org/10.3390/pr12092019.

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The research presented in this work explores two methods for synthesizing supported metal catalysts: wet impregnation method (IM) and sol–gel auto-combustion method (AC). These techniques were used to create a series of magnesium oxide (MgO)-based materials, including pure MgO and MgO-supported chromia catalysts, CrMgX, varying the weight percentage of chromium. The specific materials synthesized are unmodified MgO; MgO loaded with 1, 3, and 5 wt% CrO3 via impregnation; and counterparts prepared with the same loadings using Cr (NO3)3 via sol–gel auto-combustion method. After synthesis, various
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17

Zulfugarova, Sima M., Zuleikha F. Aleskerova, Gunel R. Azimova, and Ulduz R. Guliyeva. "COMBINATION OF MICROWAVE TECHNOLOGY WITH SOL-GEL METHOD WITH AUTO-COMBUSTION FOR OBTAINING CATALYSTS FOR LOW-TEMPERATURE OXIDATION OF CARBON MONOXIDE." Transactions of the Kоla Science Centre of RAS. Series: Engineering Sciences 2, no. 2/2023 (2023): 92–96. http://dx.doi.org/10.37614/2949-1215.2023.14.2.016.

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The results of a study of the reaction of carbon monoxide oxidation on double and triple cobalt-containing oxide catalysts obtained by the sol-gel method with auto-combustion and the use of microwave technology are presented. The conditions for combining microwave treatment with the sol-gel method with auto-combustion are established. The use of microwave energy to "ignite" the gel without further prolonged irradiation, the catalytic activity of the obtained oxide systems in the oxidative conversion of carbon monoxide is comparable to the activity of similar samples obtained by the sol-gel met
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18

RAVAL, ANAND, NITAL PANCHAL, and RAJSHREE JOTANIA. "STRUCTURAL PROPERTIES AND MICROSTRUCTURE OF COBALT FERRITE PARTICLES SYNTHESIZED BY A SOL-GEL AUTO COMBUSTION METHOD." International Journal of Modern Physics: Conference Series 22 (January 2013): 558–63. http://dx.doi.org/10.1142/s2010194513010660.

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Synthesis and characterization of Cobalt ferrite powders by a sol gel combustion process is focused in the present work. The prepared precursors was calcined at 950° C for 4 hours in order to get cobalt ferrite powder. The effect of metal nitrates/citric acid ratio (referred as x) of CoFe2O4 on structural and micro-structural properties was investigated. The structural characterization on CoFe2O4 ferrite samples were carried out using the X-ray diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FT-IR) techniques. Phase identification and crystallite size of calcined powder were det
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19

Chavan, Sanchita V., Vyankati R. Jadhav, Sunanda H. Pisal, et al. "Investigation of Structural, Magnetic and Optical Properties for Dysprosium Doped Zinc Nanoferrites by Sol-Gel Autocombution Techniques." East European Journal of Physics, no. 2 (June 1, 2024): 315–20. http://dx.doi.org/10.26565/2312-4334-2024-2-36.

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Using the auto combustion sol-gel method, nanoferrite crystalline aligns of Dy3+ replaced Zn-Fe spinel ferrite with the chemical formula DyxZn1-xFe2-xO4 (x= 0.00, 0.05) were successfully synthesized. In this process, citric acid was utilized as energy (fuel) in a 3:1 ratio to metal nitrate. Using XRD and FT-IR, the crystal structure and phase of dysprosium zinc was examined. Using the XRD method, the crystal size, lattice constant, cation distribution, and porosity were ascertained. FT-IR spectroscopy is used to infer structural study and the redistribution of cations between octahederal (A) a
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20

Munisha, Bhagyashree, Lokanath Patra, Jyotirmayee Nanda, and Sneha Mondal. "Insights into the electronic, magnetic structure, and photocatalytic activity of Y2CuMnO6 double perovskite." RSC Advances 15, no. 5 (2025): 3110–21. https://doi.org/10.1039/d4ra06357k.

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21

Raghasudha, M., D. Ravinder, and P. Veerasomaiah. "Effect of Cr Substitution on Magnetic Properties of Mg Nanoferrites Synthesized by Citrate-Gel Auto Combustion Method." Journal of Chemistry 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/804042.

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22

Aravind, G., M. Raghasudha, D. Ravinder, et al. "Study of structural and magnetic properties of Li–Ni nanoferrites synthesized by citrate-gel auto combustion method." Ceramics International 42, no. 2 (2016): 2941–50. http://dx.doi.org/10.1016/j.ceramint.2015.10.077.

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23

Qi, Xi Wei, He Ji Xu, Xiao Yan Zhang, and Jian Quan Qi. "Synthesis of Multiferroic BiFeO3 Powders by Sol-Gel Auto-Combustion." Advanced Materials Research 412 (November 2011): 99–102. http://dx.doi.org/10.4028/www.scientific.net/amr.412.99.

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Crystalline multiferroic BiFeO3 powders were directly synthesized by sol-gel auto-combustion method. The gels, derived from the solutions of 2-methoxyethane, metal nitrate and citric acid, exhibited the self-propagating combustion behaviors at ambient temperature when it is ignited in air. After auto-combustion, the dried gels transformed into crystalline BiFeO3 powders and no further calcination was needed. The nature of auto-combustion was ascribed to heat-induced redox between NH4NO3 and carboxyl group. The TG-DTA was carried out to study the auto-combustion of dried gels. The synthesized p
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24

YANG, Fang, Xing Xing YANG, Qing LIN, Rui Jun WANG, Hu YANG, and Yun HE. "Microstructure and Magnetic Studies of La1-xSrxFeO3 Nano Particles Fabricated by the Citrate Sol-Gel Method." Materials Science 25, no. 3 (2019): 231–37. http://dx.doi.org/10.5755/j01.ms.25.3.19455.

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The paper reports the use the sol-gel auto-combustion method for the preparation of nanocrystalline La1-xSrxFeO3 (x = 0¸0.7). The physical and chemical properties, microstructure, morphology and magnetic properties of the particles thus formed were studied. The X-ray diffraction (XRD) results indicated that Sr2+ instead of perovskite La are attributed to the lattice forming solid solution La1-xSrxFeO3, which has single orthogonal perovskite structure, space group Pnma, and does not show any impurity peaks. Fourier-transform infrared (FT-IR) spectroscopy confirmed the presence of Fe-O-Fe bond a
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25

Prasad, M. Siva Ram, B. Rajesh Babu, K. V. Ramesh, and K. Trinath. "Structural and Magnetic Studies on Chromium substituted Ni-Zn Nano Ferrite Synthesized by Citrate Gel Auto Combustion Method." Journal of Superconductivity and Novel Magnetism 27, no. 12 (2014): 2735–45. http://dx.doi.org/10.1007/s10948-014-2637-6.

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26

Trif, László, Nikoletta Molnár-Vörös, Gyula Tolnai, István E. Sajó, Sándor Mészáros, and Erika Kálmán. "Preparation and Characterization of Nanostructured Ferrite Materials by a Nitrate-Citrate Self-Combustion Sol–Gel Synthesis." Materials Science Forum 589 (June 2008): 167–72. http://dx.doi.org/10.4028/www.scientific.net/msf.589.167.

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New chemical synthesis procedure for the preparation of nickel zinc doped W-type hexagonal barium ferrite and aluminium doped yttrium-iron garnet nanoparticles has been developed, using the nitrate-citrate sol-gel auto-combustion method (NCSAM). The crystalline phase attributes, microstructure, morphology, specific surface area, Curie temperature (TC), permeability, thermal behavior of the as-burnt phase and the heat treated powders were characterized using XRD, SEM, FT-IR, BET, TG-DTA and AC magnetic permeability with frequency shift. In the case of the hexaferrite, the pure W-type ferrite ph
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27

Sailaja Kumari, P., G. Vijaya Charan, and D. Ravi Kumar. "Synthesis, structural, photocatalytic and anti-cancer activity of Zn doped Ni nano chromites by citrate gel auto combustion method." Inorganic Chemistry Communications 139 (May 2022): 109393. http://dx.doi.org/10.1016/j.inoche.2022.109393.

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28

Abdullah Dar, M., Kowsar Majid, Khalid Mujasam Batoo, and R. K. Kotnala. "Dielectric and impedance study of polycrystalline Li0.35−0.5Cd0.3Ni Fe2.35−0.5O4 ferrites synthesized via a citrate-gel auto combustion method." Journal of Alloys and Compounds 632 (May 2015): 307–20. http://dx.doi.org/10.1016/j.jallcom.2015.01.190.

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29

Santhosh Kumar, M. V., G. J. Shankarmurthy, E. Melagiriyappa, K. K. Nagaraja, H. S. Jayanna, and M. P. Telenkov. "Structural and complex impedance properties of Zn2+ substituted nickel ferrite prepared via low-temperature citrate gel auto-combustion method." Journal of Materials Science: Materials in Electronics 29, no. 15 (2018): 12795–803. http://dx.doi.org/10.1007/s10854-018-9398-0.

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30

Sreekandan, Sreelakshmi, Anjitha Thadathil, Bindu Mavila, Kannan Vellayan, and Pradeepan Periyat. "Solvent-free synthesis of 1,2-dihydro-1-arylnaphtho[1,2-e] [1,3] oxazine-3-ones using a magnetic nickel–zinc ferrite nanocatalyst." RSC Advances 15, no. 6 (2025): 4553–61. https://doi.org/10.1039/d4ra05486e.

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31

Amghar, Mohamed, Amira Bougoffa, Abdessalem Trabelsi, Abderrazek Oueslati, and Essebti Dhahri. "Optical and dielectric properties of silver-substituted ZnAl2O4 spinels synthesized using a sol-gel auto-combustion method." RSC Advances 12, no. 31 (2022): 20348–59. http://dx.doi.org/10.1039/d2ra02555h.

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32

Uday Bhasker, Sontu, Y. Vijaya Kumar, and M. V. Ramana Reddy. "Preparation and Characterization of Cobalt Magnesium Nano Ferrites Using Auto-Combustion Method." Advanced Materials Research 584 (October 2012): 280–84. http://dx.doi.org/10.4028/www.scientific.net/amr.584.280.

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Co0.6Mg0.4 Fe2O4 samples are prepared by auto-combustion method at various pH values of the solutions (sols). The precursors for the solids are different gels obtained from metal nitrates and citric acid by sol-gel process. The pH is varied by adding ammonia. The gels thus obtained are heated at 2000C and they exhibited self propagating combustion behavior. The residues are heated for one and half hours at 6000C. XRD analysis of the final solids revealed that after combustion the gel is directly transformed into nano sized cobalt magnesium ferrite particles. The samples are sintered at 6000C a
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Zhu, Yan Feng, Wei Liang Liu, An Hua Wu, Zhen Qian Feng, Chuan Yong Wang, and Jun Xu. "Synthesis of LaFeO3 Nano-Powders by Self-Propagating Combustion Method of Sol-Gel." Key Engineering Materials 544 (March 2013): 17–20. http://dx.doi.org/10.4028/www.scientific.net/kem.544.17.

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Nanocrystalline LaFeO3 with particle size of about 50 nm was directly synthesized by sol–gel auto-combustion method at room temperature. The overall process involves three steps: formation of homogeneous sol; formation of dried gel; and combustion of the dried gel. Single phase nanocrystalline LaFeO3 powders were successfully synthesized by the sol–gel self-propagation combustion method using glycin (C2H5NO2) as the chelating agent. Discuss the synthesis products by DTA/TG, XRD and SEM. The experiment results show that the LaFeO3 nano-powder was got from dried gel of G/M=1:1 at 300°C ignition
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34

Bai, Yang, Ji Zhou, Zhilun Gui, and Longtu Li. "Phase formation process, microstructure and magnetic properties of Y-type hexagonal ferrite prepared by citrate sol–gel auto-combustion method." Materials Chemistry and Physics 98, no. 1 (2006): 66–70. http://dx.doi.org/10.1016/j.matchemphys.2005.08.067.

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Amghar, Mohamed, Amira Bougoffa, Abdessalem Trabelsi, Abderrazek Oueslati, and Essebti Dhahri. "Structural, morphological, and electrical properties of silver-substituted ZnAl2O4 nanoparticles." RSC Advances 12, no. 25 (2022): 15848–60. http://dx.doi.org/10.1039/d2ra01800d.

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36

BARATI, M. R., S. A. SEYYED EBRAHIMI, and A. BADIEI. "INFLUENCE OF pH ON PHYSICAL PROPERTIES OF NICKEL-ZINC NANOCRYSTALLINE POWDERS SYNTHESIZED BY A SOL-GEL AUTO-COMBUSTION METHOD." International Journal of Modern Physics B 22, no. 18n19 (2008): 3153–58. http://dx.doi.org/10.1142/s0217979208048048.

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In this research a sol-gel auto-combustion route has been proposed to synthesize nickel-zinc ferrite nanocrystalline powder, using metal nitrates, citric acid as fuel and ammonia as pH adjusting agent. The influence of pH value of the solution on phase evolution, crystallite size and morphology of as-burnt powders were investigated by XRD, SEM and TEM techniques. The results revealed that with pH=7 the single phase nickel-zinc ferrite nanocrystalline powders with crystallite size of about 27nm were formed directly after auto combustion process.
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Múzquiz-Ramos, E. M., Dora A. Cortés-Hernández, O. A. Herrera-Romero, and José C. Escobedo-Bocardo. "Preparation and Properties of CoFe2O4 Synthesized by the Modified Citrate-Gel Method." Materials Science Forum 644 (March 2010): 39–42. http://dx.doi.org/10.4028/www.scientific.net/msf.644.39.

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In this work, the synthesis of CoFe2O4 via sol-gel auto-combustion method, using iron nitrate, cobalt nitrate and citric acid, with subsequent heat treatment in air was studied. The effects of the molar ratio of the metal nitrates to citric acid and the heat treatment temperatures on the magnetic properties have been investigated. The X-ray diffraction patterns showed peaks consistent with cubic spinel-type structure. The average crystallite sizes were determined from the (311) peak of the diffraction pattern using Scherrer equation. Particle sizes in the range of 18-44 nm were obtained. The c
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Dara, Mina, Mohammad Hassanpour, Hassan Abbas Alshamsi, Mahin Baladi, and Masoud Salavati-Niasari. "Green sol–gel auto combustion synthesis and characterization of double perovskite Tb2ZnMnO6 nanoparticles and a brief study of photocatalytic activity." RSC Advances 11, no. 14 (2021): 8228–38. http://dx.doi.org/10.1039/d0ra10400k.

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39

Ostafiychuk, B. K., L. S. Kaykan, Y. S. Kaykan, A. B. Hrubyak, and M. O. Nykoliuk. "Magnetic and Dielectric Properties of Mg Substituted Nanocrystalline Li Ferrite Obtained by the Method Auto-Ignition Sol-Gel." Фізика і хімія твердого тіла 18, no. 1 (2017): 102–10. http://dx.doi.org/10.15330/pcss.18.1.102-110.

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The ultrafine particles of magnesium-substituted lithium ferrites of the general formula were synthesized by a low-temperature gel-citrate auto-combustion method. The structural characteristics of the samples were obtained on the basis of X-ray diffraction (XRD) and SEM (emission electron spectroscopy) analyzes. XRD studies have confirmed the formation of a single-phase spinel structure with crystallite sizes around 15 - 30 nm. The M-H loop was recorded using an F-64 ferrometer for all formulations at room temperature and 50 Hz and the hysteresis parameters obtained. The hysteresis loop of the
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Srikanth, Ch, P. Sailaja Kumari, R. Venkatesh Nayak, and G. Vijaya Charan. "Optimizing Structural, Optical, Photocatalytic Properties of Cadmium Substituted Al Nano Chromites Synthesized at Low Temperature." Asian Journal of Chemistry 37, no. 3 (2025): 729–36. https://doi.org/10.14233/ajchem.2025.33195.

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In this work, the fabrication of cadmium doped Al nano chromites was performed by citrate gel auto combustion method to optimize its structural, morphological, optical and photocatalytic properties. The formed cadmium doped Al nanostructured chromites [Al1-xCdxCr2O4 where x = 0.00, 0.04 and 0.10] were characterized by X-ray diffraction, FESEM and FTIR techniques. The XRD confirms the single-phase cubic spinel structure of the Cd-Al nanochromites. The average crystalline size of the samples varies from 19 nm to 25 nm calculated by Debye-Scherrer’s equation from X-ray diffraction pattern. FTIR s
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41

Jaiswal, Nandini, Shail Upadhyay, Devendra Kumar, and Om Parkash. "Sm3+ and Sr2+ co-doped ceria prepared by citrate–nitrate auto-combustion method." International Journal of Hydrogen Energy 39, no. 1 (2014): 543–51. http://dx.doi.org/10.1016/j.ijhydene.2013.10.009.

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42

Jeidd, Abddaim, Mohamed Amghar, A. Mabrouki, et al. "Study of physical properties of the Li0.5MgFe1.5O3.5 ferrite nanoparticles." RSC Advances 13, no. 19 (2023): 12906–16. http://dx.doi.org/10.1039/d2ra07970d.

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In the present research study, the structural, optical, magnetic, electrical and dielectrical properties of the spinel ferrite Li0.5MgFe1.5O3.5, synthesized using a sol–gel auto-combustion method were studied.
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43

C Alange, Ravindra. "Structural and Magnetic Properties of Zn2+ Doped Cobalt Ferrite Nanoparticles Synthesized by Sol-gel Auto Combustion Method." International Journal of Science and Research (IJSR) 10, no. 7 (2021): 981–83. https://doi.org/10.21275/sr21719065226.

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44

Baburao, Banoth, N. Hari Kumar, Avula Edukondalu, M. Venkata Narayana, and D. Ravinder. "Structural, optical, DC electrical, thermo-electric, dielectric and magnetic properties of Mg0.8Zn0.2GdxFe2-xO4 nanoparticles synthesised by citrate-gel auto combustion method." Inorganic Chemistry Communications 148 (February 2023): 110355. http://dx.doi.org/10.1016/j.inoche.2022.110355.

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45

Liu, Gui Fang, Run Hua Fan, Ke Lan Yan, et al. "Magnetic Properties and Unusual Morphologies of Barium Ferrites Prepared by Electrospinning and Sol-Gel Auto-Combustion Method." Materials Science Forum 815 (March 2015): 141–46. http://dx.doi.org/10.4028/www.scientific.net/msf.815.141.

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Barium ferrite fibers and barium ferrite powders were successfully prepared respectively via Electrospinning method and sol-gel auto-combustion method by using Fe (NO3)3·9H2O, Ba (NO3)2 as one of the main raw materials. X-ray diffraction (XRD) and field emission scanning electron microscope (FSEM) were used to study the phase composition and microstructure of barium ferrite. The results showed that barium ferrite fibers consist of a mixture of barium ferrite particles, the diameter of fibers is about 200 nm; barium ferrite powders prepared by sol-gel auto-combustion method were flake barium fe
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Jamil, Muhammad Tufiq, Javed Ahmad, Syed Hamad Bukhari, and Murtaza Saleem. "Effect of Re and Tm-site on morphology structure and optical band gap of ReTmO3 (Re: La, Ce, Nd, Gd, Dy, Y and Tm: Fe, Cr) prepared by sol-gel method." Revista Mexicana de Física 64, no. 4 (2018): 381. http://dx.doi.org/10.31349/revmexfis.64.381.

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Rare earth nano sized pollycrystalline orthoferrites and orthocromites ReT mO3 (Re = La, Nd, Gd, Dy, Y and T m = Fe, Cr) have been synthesized by sol-gel auto combustion citrate method. The samples have been characterized by means of X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), and UV-visible spectroscopy. The samples are single phase as confirmed by XRD analysis and correspond to the orthorhombic crystal symmetry with space group pbnm. Debye Scherer formula and Williamson Hall analysis have been used to calculate the average grain si
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Zeng, Ai Xiang, and Jun Yuan. "Study of Sol-Gel Auto-Combustion Method Prepare Ni0.6-xZn0.4MgxFe2O4." Advanced Materials Research 463-464 (February 2012): 1052–56. http://dx.doi.org/10.4028/www.scientific.net/amr.463-464.1052.

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Ni0.6-xZn0.4MgxFe2O4were synthesized by sol-gel auto-combustion method with Zn(NO3.) 2 •6H2O. , Ni(NO3.) )2•6H2O. , Mg(NO3.) )2•6H2O. , Fe(NO3.) )3•9H2O. , COOO2. and NH3•H2O. X-ray diffraction (XRD) analysises show that the sample is single phase and the doping of magnesium makes no difference to nickel-zinc ferrite’s crystal structure; nickel-zinc ferrite has formed after auto-combustion. Scanning electron microscope analysises show that after sintered the sample’s size is more even and the doping of magnesium makes the size smaller and more even too.
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Su, Xin Tai, Qing Zhi Yan та Chang Chun Ge. "Preparation of Nanocrystalline Ba3(Ca1.18Nb1.82)O9-δ Powder with Sol-Gel Auto-Ignition Synthesis Process". Key Engineering Materials 280-283 (лютий 2007): 631–34. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.631.

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Ba3(Ca1.18Nb1.82)O9-d (BCN18) powder was synthesized using a wet chemical method from mixtures of all water-soluble compounds including Ba, Ca and Nb-citrate. It has been found that NH4NO3 in the initial solutions plays an important role in controlling the enthalpy of low temperature combustion process as well as the gel decomposition temperature. Further steps include evaporating, drying and calcinating. The obtained gels were characterized by TG-DSC, and the powder was characterized with XRD, TEM and BET. The experimental results have indicated that the heating temperature was only 800°C for
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Dara, Mina, Mohammad Hassanpour, Omid Amiri, Mahin Baladi, and Masoud Salavati-Niasari. "Sol–gel auto combustion synthesis, characterization, and application of Tb2FeMnO6 nanostructures as an effective photocatalyst for the discoloration of organic dye contaminants in wastewater." RSC Advances 11, no. 43 (2021): 26844–54. http://dx.doi.org/10.1039/d1ra02609g.

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In this study, new double perovskite Tb2FeMnO6 nanoparticles were successfully synthesized by a sol–gel auto combustion method for the first time. The photocatalytic properties of the nanoparticles were also evaluated for the first time.
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Li, Le-Zhong, Xiao-Xi Zhong, Rui Wang, et al. "Structural, magnetic and electrical properties in Al-substitued NiZnCo ferrite prepared via the sol–gel auto-combustion method for LTCC technology." RSC Advances 7, no. 62 (2017): 39198–203. http://dx.doi.org/10.1039/c7ra06413f.

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