Combustion Synthesis of Advanced Materials: Principles and Applications

Varma, Arvind; Рогачев, А. С.; Mukasyan, Alexander S.; Hwang, Stephen C.

doi:10.1016/s0065-2377(08)60093-9

Cited by 365 publications

(201 citation statements)

References 189 publications

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“…In general, CS is an energy-efficient method for the production of advanced materials, including powders and net-shape articles [5,6]. Characterized by fast heating rates, high temperatures, and short reaction times, CS occurs typically by two modes.…”

Section: Introductionmentioning

confidence: 99%

Perovskite membranes by aqueous combustion synthesis: synthesis and properties

Mukasyan

Costello

Sherlock

et al. 2001

Separation and Purification Technology

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130

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The objective of this work is to identify optimum synthesis, compacting and sintering conditions in order to achieve a pure phase fully densified La 0.8 Sr 0.2 CrO 3 (LSC) perovskite membrane. The aqueous combustion synthesis of LSC powders was investigated over a wide range of synthesis conditions by using the metal nitrates (oxidizer)-glycine (fuel) system. The powders were pressed and sintered to create dense materials, which were characterized. It was shown that depending on fuel/oxidizer ratio, , the reaction can proceed in three different modes: Smoldering Combustion Synthesis (SCS), B0.7, with maximum temperature, T m B 600°C; Volume Combustion Synthesis (VCS), 0.7 B B1.2, 1150°C B T m B1350°C; Self-propagating High-temperature Synthesis (SHS), 1.2 B B 1.6, 800°CBT m B1100°C. In turn, the characteristics of synthesized powders depend on the combustion mode. The crystalline structure of as-synthesized powders becomes more defined as increases (amorphous for SCS; crystalline for VCS and SHS). The specific surface area decreases slightly when mode changes from SCS ( 25 m 2 g − 1 ) to VCS ( 20 m 2 g − 1 ), however, it increases substantially under SHS conditions (up to 45 m 2 g − 1 ). It was also shown that calcination is beneficial only for SCS powders, while VCS and SHS powders may be sintered directly as synthesized, thus bypassing the time and energy consuming calcination step. The measured oxygen permeation values for the membranes are comparable with the best candidate materials reported in the literature.

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Section: Introductionmentioning

confidence: 99%

Perovskite membranes by aqueous combustion synthesis: synthesis and properties

Mukasyan

Costello

Sherlock

et al. 2001

Separation and Purification Technology

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130

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“…Auto-combustion synthesis is characterized by fast heating rates, high temperatures, and short reaction times. [17][18][19] 2 .4H 2 O) were used as starting materials. After completely dissolving the starting materials and fuel in distilled water, based on stoichiometric quantities, the solution was heated (under magnetic stirring) on a hot plate at around 100 • C until water evaporation and gel formation.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the magnetocaloric response of nano-sized La0.7Ca0.3Mn1-xNixO3 manganites synthesized by auto-combustion method

et al. 2018

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A systematic study of the dependence of the magnetization on the magnetic field around the ferromagnetic–paramagnetic phase transition temperature is carried out on La0.7Ca0.3Mn1-xNixO3 (x=0, 0.02, 0.07, and 1) samples synthesized by auto-combustion method. The successful substitution of Mn3+ ions by Ni2+ ions in the La0.7Ca0.3MnO3 lattice is corroborated by X-ray diffraction technique. Banerjees criteria, Arrott plots, and the scaling hypothesis are used to analyze the experimental data. It is verified that the Ni-doping increases the operating temperature range for magnetocaloric effect through tuning of the magnetic transition temperature. Probably, the replacement of Mn3+ by Ni2+ ions in the La0.7Ca0.3MnO3 lattice weakens the Mn3+-O-Mn4+ double exchange interaction, which leads to a decrease in the transition temperature and magnetic moment in the samples. The Arrott plots suggest that the phase transition from ferromagnetic to paramagnetic in the nano-sized manganite is of second order. The analysis of the magnetization results show that the maximum magnetic entropy changes observed for x=0, 0.02, 0.07, and 0.1 compositions are 0.85, 0.77, 0.63, and 0.59 J/kg K, under a magnetic field of 1.5 T. These values indicate that the magnetic entropy change achieved for La0.7Ca0.3Mn1-xNixO3 manganites synthesized by auto-combustion method is higher than those reported for other manganites with comparable Ni-doping levels but synthesized by standard solid state reaction. It is also observed that the addition of Ni2+ increases the value of the relative cooling power as compared to that of the parent compound. The highest value of this parameter (∼60 J/kg) is found for a Ni-doping level of 2 % around 230 K in a field of 1.5 T.

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“…Among wet chemical methods, the nitrate-citrate combustion synthesis is the most attractive one because it is simple, fast, and cheap. It is an efficient procedure for synthetize pure, crystalline and nanosized powder of perovskite oxides with designed stoichiometry [16][17][18][19]. Indeed, cation are chelated by citrate anion and are homogenously distributed at a molecular level providing stoichiometric materials.…”

Section: Introductionmentioning

confidence: 99%

Catalytic combustion of methane by perovskite-type oxide nanoparticles as pollution prevention strategy

Zaza¹,

Luisetto²,

Serra³

et al. 2016

AIP Conference Proceedings

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Catalysis science offers to combustion technology significant opportunity to increase the fuel efficiency by lowering the internal temperature gradients and reduce the environmental impact by lowering local peak temperature and, consequently, thermodynamically inhibiting the nitrogen oxides formation. Alternative catalytic materials are transition metals oxide, including complex oxides with perovskite crystalline structure. The aim of this work is to synthetize lanthanum ferrite perovskites with lanthanum ions partially substituted by strontium ions in order to study the substitution effects on structural properties and redox activity of the original oxide. Lanthanum ferrite oxides partially substituted with different Strontium amount were synthesized by solution combustion method. The perovskite nanopowders obtained were characterized by XRD, SEM, TPR analyses for defining crystalline structure, morphology and redox properties. Finally, the catalytic activity for methane combustion was tested. The most performing catalysts was La0:6Sr0:4FeO3 having the highest oxygen vacancy concentration as revealed byTPR analysis

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Combustion Synthesis of Advanced Materials: Principles and Applications

Cited by 365 publications

References 189 publications

Perovskite membranes by aqueous combustion synthesis: synthesis and properties

Perovskite membranes by aqueous combustion synthesis: synthesis and properties

Evaluation of the magnetocaloric response of nano-sized La0.7Ca0.3Mn1-xNixO3 manganites synthesized by auto-combustion method

Catalytic combustion of methane by perovskite-type oxide nanoparticles as pollution prevention strategy

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