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Abstract: Solution—combustion is an attractive approach to synthesis of nanomaterials for a variety of applications, including catalysts, fuel cells, and biotechnology. Add to Cart. Advances in Science and Technology Volume Main Theme:. Edited by:. Online since:. October Alexander S.
Cited by. Related Articles. Paper Title Pages. Abstract: The combustion process of Mg-TiO2 system was preliminarily investigated from three aspects of thermodynamics, reaction kinetics and the technological parameters. The result indicates that the adiabatic temperature of Mg-TiO2 system is between K and K because the major existent modalities of TiO2 is the rutile and anatase, this meets the empirical criterion that the SHS reaction will be self-sustaining; The solid-solid reaction occurs at about K; Ti powders can be produced only when the ratio between Mg and TiO2 arrives at 2.
So the proper control of the technological parameters can change the reaction temperature, reaction rate and the components of reaction products. Synthesis of Ce 0. Abstract: In this work, synthesis of the nanocrystalline Ce 0. XRD results indicate that the as-prepared powders are crystallinzed in a single fluorrite structure. The crystalline size ranges from 9 nm to 24 nm, which increases with the increase of calcination temperature. The SEM results imply some organic agent may be eliminated by high temperature calcination process. Abstract: The present article reports the results of studies related to the synthesis of nanocrystalline ceria powder by combustion process using salt combustion aid.
Cerium nitrate as oxidant and urea as fuel were used as reagents, Sodium Chloride was compared as combustion aid. The phase analysis and particle size were compared.
The product was characterized by X-ray diffraction, Scanning electron microscopy and Transmission electron microscopy. The results showed that employment of starting fuel with combustion aid resulted in synthesizing nanocrystalline ceria powder with fine agglomerates. By using combustion aid, the energetics of the combustion reaction and particle characteristics have been changed. Abstract: A nanoscale ceria-doped calcia solid solution has been synthesized by controled self-combustion method. The difference in crystal structure of samples prepared from different fuels were identified by XRD.
The change of the crystal structure of the ceria-doped calcia sintering at different temperature was also investigated. SEM indicates that a nanoscale and uniform particle with diameter less than nm was achieved by this method. The effect of compositions on the combustion behavior and the product was studied and the results showed that the amount of Al in the starting powder was the key factor affecting the combustion behavior, the phase assemblages and the morphology of products. Added To Cart. Share full text access.
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