2015
DOI: 10.1039/c5ra05406k
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Obtaining a novel crystalline/amorphous core/shell structure in barium titanate nanocrystals by an innovative one-step approach

Abstract: Synthesis temperature and purity of core/shell nanocrystals are key challenges facing the scientific community. Moreover, the core/shell structures usually need a multi-step synthesis pathway to be fabricated. This work aims to address these challenges by developing an innovative one-step synthesis pathway for obtaining carbonate-free BaTiO 3 core/shell nanocrystals at low temperature. The results show that very fine BaTiO 3 core/shell nanocrystals (<11 nm) free from any by-products such as BaTi 2 O 5 and BaCO… Show more

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Cited by 20 publications
(14 citation statements)
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“…These conditions greatly accelerate the rate of the formation of the products without need for any additional external heating. The formation mechanism of the synthesized of SnO 2 nanoparticles is related to the bubble's collapse during cavitation [21]. Theses bubbles are produced by irradiation of elevated intensity ultrasound in the liquid reaction beside with alternation of compressive and expansive acoustic waves [22,23].…”
Section: Mechanism For the Sonochemical Formation Of Sno 2 Nanoparticlesmentioning
confidence: 99%
“…These conditions greatly accelerate the rate of the formation of the products without need for any additional external heating. The formation mechanism of the synthesized of SnO 2 nanoparticles is related to the bubble's collapse during cavitation [21]. Theses bubbles are produced by irradiation of elevated intensity ultrasound in the liquid reaction beside with alternation of compressive and expansive acoustic waves [22,23].…”
Section: Mechanism For the Sonochemical Formation Of Sno 2 Nanoparticlesmentioning
confidence: 99%
“…Two major synthetic pathways are generally applied for obtainment of perovskite nanoparticles 17 ; conventional solid-state reactions using mechanical mills 4,7,18,21 and advanced wet chemical processing routes such as solgel, [22][23][24] hydrothermal 5 and sonochemical processing methods. [25][26][27][28] Mechanical milling using ball mills [29][30][31] was reported as an efficient feasible approach for mass production of perovskite powders which is able to obtain the final powder product from cheap starting materials. Barium titanate powder products were obtained by thermal treatment of mixture of TiO 2 and barium carbonate (BaCO 3 ) starting materials at temperatures in the range of 1473-1573 K (1200-1300°C).…”
mentioning
confidence: 99%
“…У роботі [30] описаний одноступінчатий процес core-shell методом вологої хімії з допомогою ультразвуку. Однак порошок, отриманий даним методом, має доволі великі розміри.…”
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