Probing Structure−Parameter Correlations in the Molten Salt Synthesis of BaZrO₃ Perovskite Submicrometer-Sized Particles

Abstract

Single-crystalline perovskite BaZrO 3 submicrometer-sized particles were synthesized using a simple, scaleable molten salt method. In this paper, in addition to a time-dependent particle evolution study, we explored primarily the effects of different experimental processing parameters, such as the identity of the salt, annealing temperatures, overall reaction times, cooling rates, and the chemical nature of the precursor in determining their impact upon the purity, size, shape, and morphology of the as-obtained products. We also discuss the role of additional experimentally controllable factors such as the heating rate applied, the amount of salt used, the molar ratios of precursors involved, and the use of surfactant. By a judicious choice of experimental parameters and conditions, we describe herein a rational means of producing pure products with a reproducible composition and morphology.

Nanoscale hydroxyapatite particles for bone tissue engineering

“…Recently, environmentally friendly synthetic methodologies, including molten-salt synthesis, hydrothermal processing, biomimic synthesis and template synthesis, have been implemented as viable techniques for the synthesis of a range of materials [34,35]. Nanosized HAp particles can be prepared by a variety of techniques such as mechanochemical synthesis [36], combustion preparation [37] and various wet chemistry techniques [38,39].…”

Oxide material synthesis by combustion of organic-inorganic compositions

“…Among the methods for oxide compounds and oxide-based materials, those using salts of different composition as starting materials and the reaction environments occupy an important place both in terms of scientific research [1][2][3][4][5][6][7][8][9][10][11][12][13] and for practical purposes [14][15][16][17][18]. These methods for oxide material synthesis have been proposed as alternative for solid-phase synthesis of oxide reagents, the implementation of which requires, as a rule, hightemperature and long-term cyclic thermal powder treatment [19][20][21][22][23][24][25].…”

Preparation of BaZrO3 cubes by composite-hydroxide-mediated approach at low temperature

“…Previous papers reported preparation cubes with various scales for many different inorganic compounds. 8) 18) High-temperature synthesis of cube-like BaZrO 3 particles using a sodium hydroxide (NaOH) potassium hydroxide (KOH) salt mixture was reported by H. Zhou et al 19), 20) In addition to that of BaZrO 3 , nanocubes preparations of Ag, SrTiO 3 , and BaTiO 3 were recently investigated. 21) 24) However, there have been no reports of the successful preparation of a BaZrO 3 nanocubes with sharp-edged corners because nanocubes preparation is very difficult.…”