Synthesis of nanocrystalline 8mol% yttria stabilized zirconia powder from sucrose derived organic precursors

Development of ZrO2‐MgO nanocomposite powders by the modified sol‐gel method

“…As could be observed, in all samples, the porous nanoparticles had been distributed homogeneously and almost uniformly. 26,27 The average particle size of both samples prepared with sucrose and tartaric acid was less than 50 nm. Due to the ignition of the dried gels in the early stages of the synthesis process, a large amount of gases and volatile organic compounds was exhausted, leading to the porous microstructure.…”

“…21,23 The spectra exhibited an O-H bending band of the H 2 O molecules chemically adsorbed to the nanoparticle surface around 1630 cm À1 . 25,26 These acids formed a complex with Mg 2+ and Zr 4+ ions, and a clear sol was obtained. 24 The metal-oxygen bonds stretching vibration mode (M-O, M=Mg, Zr) existed in the wave number range of 400-600 cm À1 , which could be attributed to Mg-O and Zr-O bands.…”

Synthesis of Nanocrystalline Yttria Stabilized Zirconia for SOFC

“…Lattice distortion has also been found for other nanocrystalline systems such as ceria [18,19]. The crystallite size determined by measuring broadening of the peaks via Scherrer equation is 17 nm whereas citrate nitrate autocombustion route, sucrose combustion route, spray drying process and succinic acid route produce 7-10 nm [15], 10nm [7], 12 nm [9] and 40 nm [14] crystallites, respectively; it was also observed that dopant concentration does not affect the crystallite size. The specific surface area analyzed by BET method is 2.66 m 2 /g.…”

“…This process starts at low temperature, with the help of an external heating source, followed by subsequent exothermic reaction between the oxidiser and fuel; this exothermic the reaction provides necessary heat to further carry out the reaction in the forward direction to produce nanocrystalline powders as the final product. Several organic fuels such as urea, glycine, oxalyl dihydrazide, sucrose, glycine-nitrate, urea-formaldehyde have been tried to synthesize nano-ceramic powders [4][5][6][7][8].…”

Structural and optical characterization of metal tungstates (MWO4; M=Ni, Ba, Bi) synthesized by a sucrose-templated method

“…Prabhakaran et al [21] had used a cheaper and simpler method of using sucrose in order to synthesize yttria-stabilized zirconia (YSZ) nanoparticles in both acidic and basic solutions. The analyses consistently reported to have fairly uniform nanoparticles with small size, containing both tetragonal and monoclinic phases with crystallite size between 10 and 30 nm.…”