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The flame-made (5/5) pure ZnO and WO3-doped ZnO nanoparticles containing 0.25, 0.50, and 0.75 mol% of WO3 were successfully synthesized by flame spray pyrolysis (FSP). These materials were studied for NO2, CO and H2 gas sensing at different gas concentrations and operating temperatures ranging from 300-400??C in dry air. The crystalline phase, morphology and size of the nanoparticles were characterized...
Flame spray pyrolysis (FSP) was employed to synthesize the pure ZnO and palladium (Pd)-doped ZnO nanoparticles containing 0.25, 0.50, 0.75 and 1.0 mol% Pd. Pd is one of the most versatile and most widely applied as catalytic metal. Precursor solutions of zinc naphthenate and palladium (II) acetylacetonate were sprayed and combusted, resulting in crystalline and nanostructured particles. The crystalline...
A chemical vapor condensation (CVC) process using the pyrolysis of metal-organic precursors was applied to produce the nanosized WO/sub 3/ powders. Morphology and phase changes of the synthesized WO/sub 3/ powder as a function of CVC parameters were investigated by XRD, BET and TEM. The agglomerated nanosized monoclinic WO/sub 3/ powders with nearly spherical shape and 10 nm-38 nm in mean diameter...
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