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Synthesis and Characterization of Nickel Particles by Hydrogen Reduction Assisted Ultrasonic Spray Pyrolysis(USP-HR) Method

Burçak Ebin, Sebahattin Gürmen
2011 Kona : Powder and Particle  
Spherical nickel particles were prepared by hydrogen reduction assisted ultrasonic spray pyrolysis (USP-HR) method using nickel chloride solution without any additives. Thermodynamic of the hydrogen reduction of the nickel chloride were studied by FactSage software. Particles were obtained at 800 reaction temperature by hydrogen reduction of aerosol droplets under H2 flow. The effects of the precursor concentration on the particle size and morphology were investigated by scanning electron
more » ... ning electron microscopy. Results showed that nickel particle sizes were decreased from 630 to 270 nm by reducing solution concentration, and also narrower size distribution was obtained using lower concentrated precursor. Nickel particle sizes were theoretically calculated and results indicated that there was a slight difference in the particle sizes compared to experimental values.
doi:10.14356/kona.2011016 fatcat:qcumolo22fevlbiea52bk4qiwu