20.500.12556/DKUM-66884 Synthesis of nickel and cobalt sulfide nanoparticles using a low cost sonochemical method Nickel and cobalt sulfides are promising materials in different cutting-edge research areas like solar cells, supercapacitors, catalysts, and electrode materials. Nickel and cobalt sulfides with various stoichiometries have been synthesized sonochemically from $Ni(CH_3COO)_2$ ∙ $4H_2O$, $Co(CH_3COO)_2$ ∙ $2H_2O$ and different sulfur precursors using a direct immersion ultrasonic probe. The products were characterized by X-ray powder diffraction, transmission electron microscopy (TEM) including EDX analysis, IR and UV–Vis spectroscopy and elemental analysis. Following products have been obtained: $NiS$, $Ni_3S_4$, $CoS_{1.097}$ and $Co_9S_8$, with average crystallite sizes in the range 7−30 nm. Effects of different reaction conditions on the size, morphology and optical band-gap energy were evaluated. Optical band-gap energies in the range 3.3 eV−3.8 eV were observed for the obtained nanoparticles. material science inorganic chemistry nanotechnology materiali anorganska kemija nanotehnologija true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-07-14 12:26:47 2017-07-14 12:30:04 2022-08-01 13:18:30 2019-07-11 16:01:57 2017 0 0 str. 1-19 št. 3 Letn. 3 March 2017 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2405-8440 54 21607432 20516118 10.1016/j.heliyon.2017.e00273 2405-8440 URN:SI:UM:DK:5F8D67AQ Heliyon_2017_Kristl_et_al._Synthesis_of_nickel_and_cobalt_sulfide_nanoparticles_using_a_low_cost_sonochemical_method.pdf Heliyon_2017_Kristl_et_al._Synthesis_of_nickel_and_cobalt_sulfide_nanoparticles_using_a_low_cost_sonochemical_method.pdf 1 ABE6E8A6F483F9E4D6DE79275B10722B 1a015a668a860b454354041104ae50f71da11350be2b90467d8c784414cddf36 6bf955bd-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/b58c4226-841d-4f4c-8eec-a6be3fadbc9d https://dk.um.si/Dokument.php?lang=slv&id=114233 http://www.heliyon.com/article/e00273 1 https://dk.um.si/Dokument.php?lang=slv&id=114232 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0