Molten salt synthesis of SrFeO3 nanocrystals

Yang, Jun; Li, Runsheng; Li, Xiaoci; Long, Yulin; Zhou, Junyi; Zhang, Yuanming

doi:10.2109/jcersj2.119.736

Cited by 13 publications

(6 citation statements)

References 26 publications

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“…In the past decade, MSS has been widely used to synthesize a range of perovskite oxide nanocrystals. For example, perovskite SrFeO 3 nanocrystals were successfully synthesized in molten NaNO 3 -KNO 3 eutectic with Na 2 O 2 from a mixture of strontium nitrate and ferric nitrate [24]. The effects of metal precursors, salt medium, annealing temperature, and oxidizing properties of the melt on the phase compositions, crystallite sizes, and morphology of the resulting metal oxides were systematically investigated.…”

Section: Molten-salt Methods (Mss)mentioning

confidence: 99%

Perovskite Oxide Nanocrystals — Synthesis, Characterization, Functionalization, and Novel Applications

Wu¹,

Zhu²

2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

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Perovskite oxide nanocrystals exhibit a wide spectrum of attractive properties such as ferroelectricity, piezoelectricity, dielectricity, ferromagnetism, magnetoresistance, and multiferroics. These properties are indispensable for applications in ferroelectric random access memories, multilayer ceramic capacitors, transducers, sensors and actuators, magnetic random access memories, and the potential new types of multiple-state memories and spintronic devices controlled by electric and magnetic fields. In the past two decades, much effort has been made to synthesize and characterize the perovskite oxide nanocrystals. Various physical and chemical deposition techniques and growth mechanisms are explored and developed to control the morphology, identical shape, uniform size, perfect crystalline structure, defects, and homogenous stoichiometry of the perovskite oxide nanocrystals. This chapter provides a comprehensive review of the state-of-the-art research activities that focus on the rational synthesis, structural characterization, functionalization, and unique applications of perovskite oxide nanocrystals in nanoelectronics. It begins with the rational synthesis of perovskite oxide nanocrystals, and then summarizes their structural characterizations. Fundamental physical properties of perovskite oxide nanocrystals are also highlighted, and a range of novel applications in nanoelectronics, information storages, and spintronics are discussed. Finally, we conclude this review with some perspectives/outlook and future researches in these fields.

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Section: Molten-salt Methods (Mss)mentioning

confidence: 99%

Perovskite Oxide Nanocrystals — Synthesis, Characterization, Functionalization, and Novel Applications

Wu¹,

Zhu²

2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

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“…This processing line has received much attention and some reviews have been published. [15,30] The polymerization reaction occurs when the initiator molecule dissociates liberating radicals that react with the double bonds of the monomer molecules. The propagation of the reaction increases with temperature, but it is possible to increase the reactivity at room temperature by adding an activator (catalyst).…”

Section: Prof Rodrigomentioning

confidence: 99%

“…Alginates are insoluble polyvalent salts, except the magnesium salt; the controlled addition of any other polyvalent cation promotes a gel formation, due to the follow ionic interchange: [30] 2Na À alginate þ Ca 2þ ! Ca À alginate þ 2Na þ Immediately a salt of a polyvalent cation is added to the alginate solution, a gel or precipitate is formed due to the electrostatic union between the cation and ionic and polar groups of the alginate, favoured by the zig-zag conformation chain.…”

Section: Chemical Gelationmentioning

confidence: 99%

Shaping of Dense Advanced Ceramics and Coatings by Gelation of Polysaccharides

2014

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The application of the gelling properties of some polysaccharides in the consolidation of ceramics (gel casting) allows the forming of dense complex-shape samples through colloidal routes. A description of those polysaccharides, their gelling mechanisms (chemical and thermal), and their synergistic interaction with non gelling polysaccharides is revised, as well as their application in the shaping of 3D (bulk) and 2D (substrates, coatings, and laminates) ceramics. The materials obtained by this methodology show both homogeneous microstructures and high green mechanical strengths, which make possible the machining in the green state, with the corresponding costs reduction.

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“…Gelcasting was first developed by Janney et al 1 and is one of the most attractive techniques to form complex-shaped ceramic bodies directly from colloidal suspensions. [1][2][3][4][5] In this process, dissolved organic monomers are used to immobilize particles in three-dimensional organic networks formed by in situ polymerization of the monomers. In the past decades, the gelcasting process has greatly improved.…”

Section: Introductionmentioning

confidence: 99%

“…In the past decades, the gelcasting process has greatly improved. 2 However, drying of the gelcast green body is still a time-consuming and inefficient step.…”

Section: Introductionmentioning

confidence: 99%

Polymerization and Rheological Behavior of the Thermoresponsive Gelcasting System Based on N‐isopropylacrylamide

Peng

Wang

Zhang

et al. 2016

Int J Applied Ceramic Tech

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Recently, we developed an efficient method for rapid drying and improving relative density of the gelcast green body. In this work, polymerization and rheological behavior of the thermoresponsive gelcasting system based on N‐isopropylacrylamide were investigated. To initiate reaction of the system with 4 mL/L of catalyst, 0.25–0.5 mg/mL of initiator is considered optimal in the optimized temperature range 15–20°C. Suspensions with 40–55 vol.% solid loading still show shear‐thinning behavior, which is favorable for mixing, degassing, and casting. The final storage moduli of consolidated suspensions are approximately 104 Pa, which is sufficiently high for gelcast green bodies.

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Molten salt synthesis of SrFeO3 nanocrystals

Cited by 13 publications

References 26 publications

Perovskite Oxide Nanocrystals — Synthesis, Characterization, Functionalization, and Novel Applications

Perovskite Oxide Nanocrystals — Synthesis, Characterization, Functionalization, and Novel Applications

Shaping of Dense Advanced Ceramics and Coatings by Gelation of Polysaccharides

Polymerization and Rheological Behavior of the Thermoresponsive Gelcasting System Based on N‐isopropylacrylamide

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