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capability of decomposing a wide variety of organics [ 1 , 2 ]. Controlled synthesis and characterization of nanoparticles is rapidly becoming a very important research area due to their unique shape and size-dependent properties [ 3 , 4 ]. When the size of

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Journal of Thermal Analysis and Calorimetry
Authors: J. R. Azevedo, R. H. Sizilio, M. B. Brito, A. M. B. Costa, M. R. Serafini, A. A. S. Araújo, M. R. V. Santos, A. A. M. Lira, and R. S. Nunes

with other crosslink agents [ 4 ]. These features make it an interesting target in drug delivery systems. Chitosan/tripolyphosphate (TPP) nanoparticles prepared by ionotropic gelation method have been increasingly studied for controlled

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Journal of Thermal Analysis and Calorimetry
Authors: N. Ivashchenko, V. Tertykh, V. Yanishpolskii, J. Skubiszewska-Zięba, R. Leboda, and S. Khainakov

Introduction Preparation of metal nanoparticles is a field of current interest in material chemistry because of possible emerging of new physical and chemical properties when the particle sizes approach the nanometer range [ 1

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focus on the effects of size and shape on melting, glass transition, and Kauzmann temperatures of SnO 2 nanoparticles. The size-dependent glass transition is an important parameter for any phase transition process and is related to the thermodynamical

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. Microwave-assisted route is expensive and handled carefully. Thus, for a special purpose to develop a more convenient and rapid way for synthesizing Bi 2 Te 3 nanoparticles (NPs) is required. Therefore, low-cost and less hazardous wet-chemical route has

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. Therefore, there is motivation and opportunities to find efficient and cost-effective new technologies that improve the heavy oil recovery and upgrading, minimize the use of energy and water-based processes, and reduce the air emissions. Nanoparticles could

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explosively with atmospheric oxygen liberating enormous amount of energy which is sufficient to oxidatively decompose the hydrazinated complex into its respective metal oxide. The formation of monophasic Co 0.8 Zn 0.2 Fe 2 O 4 nanoparticles soon after the

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Introduction Humans have coexisted with nanoparticles—both generated in natural processes (erosion, volcanic eruptions), or artificial (combustion)—from immemorial time. In general, they were composed by common metal oxides

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nanoparticles that could be used for high density magnetic recording sensors etc., has attracted many workers toward the cubic spinel-structured cobalt ferrite of variable particle size in which Co 2+ and Fe 3+ occupy tetrahedral/octahedral sites in the fcc

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Abstract  

The chemistry, structure, and properties of spinel ferrites are largely governed by the method of preparation. The metal carboxylato-hydrazinate precursors are known to yield nanosized oxides at a comparatively lower temperature. In this study, we are reporting the synthesis of one such precursor, cobalt nickel ferrous fumarato-hydrazinate which decomposes autocatalytically to give cobalt nickel ferrite nanoparticles. The XRD study of this decomposed product confirms the formation of single-phase spinel, i.e., Co0.5Ni0.5Fe2O4. The thermal decomposition of the precursor has been studied by isothermal, thermogravimetric (TG), and differential scanning calorimetric (DSC) analysis. The precursor has also been characterized by FTIR, EDX, and chemical analysis, and its chemical composition has been determined as Co0.5Ni0.5Fe2(C4H2O4)3·6N2H4.

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