Title of article :
Synthesis of spherical NiO nanoparticles using a solvothermal treatment with acetone solvent
Author/Authors :
Kwak، نويسنده , , Byeong Sub and Choi، نويسنده , , Byung-Hyun and Ji، نويسنده , , Mi-Jung and Park، نويسنده , , Sun-Min and Kang، نويسنده , , Misook، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Abstract :
Nanometer-sized nickel oxide (NiO) particles were synthesized by thermal reactions with nickel (II) carbonate as a metal-containing precursor and four solvents: water, ethanol, butanol, and acetone. The optimal reaction conditions to obtain spherical NiO were determined to be the acetone solvent, nickel carbonate precursor, and a reaction temperature and time of 200 °C and 48 h, respectively. TEM images revealed perfectly spherical NiO nanoparticles of size ranging from 2.0 to 10.0 nm in the acetone solvent. The reaction mechanism for the formation of the NiO nanoparticles is proposed based on a pathway of chelated Ni complex during crystal growth. Although metallic Ni was also formed from reactions using the two alcoholic solvents, the Ni(OH)2 structure remained in the water solvent after thermal treatment.
Keywords :
Nanoparticles , Chelated Ni complex , Solvothermal reaction , Nickel oxide
Journal title :
Journal of Industrial and Engineering Chemistry
Journal title :
Journal of Industrial and Engineering Chemistry