Adsorption characteristics of Cu2+ species on cerussite surfaces and implications for sulfidization flotation

Zhang, Qian; Wen, Shuming; Feng, Qicheng; Miao, Yongchao

doi:10.1016/j.seppur.2021.120109

Cited by 8 publications

(1 citation statement)

References 35 publications

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“…It is known from [5][6][7][8][9][10] that heterometallic complex compounds containing atoms of transition metals and lanthanides are widely utilized due to their unique magnetic, electrical, optical, luminescent and other properties. Introducing different complexing metals and chelating ligands into a molecule of complex compound one can obtain compounds of different composition, i.e.…”

Section: Introductionmentioning

confidence: 99%

Electrical properties of the nanocomposite (copper, samarium)-containing complex compound

Семенов

Martyniuk

Evseeva

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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A new semiconductor material tetrakis-μ3-(methoxo)(methanol)-pentakis (acetylacetonate)(tricopper(II), samarium(III)) (I) with composition [Cu3Sm(AA)5(OCH3)4CH3OH], where HAA = H3C–C(O)–CH2–C(O)–CH3 has been synthesized. By the data of elemental analysis and physicochemical research methods, it was established that the obtained complex compound (I) contained atoms of copper (II) and samarium (III) in ratio Cu:Sm = 3:1, and its composition corresponded to the gross formula Cu3SmO15C30H51. Electrical conductivity of the obtained material in pressed form was measured. For the complex compound (I) such parameters were calculated: the number of valence electrons in one molecule − 272; mass of one molecule − 164.867∙10-20 kg; the total number of molecules in the cylindrical sample of a 0.131 g mass and a 18.24∙10-9 m3 volume − 7.946∙1013 moleculas; the total number of valence electrons − 272. In the 303~413 K temperature range, the resistivity of the pressed sample decreases from 4∙1011 to 7∙104Ohm∙cm, which confirms that the isolated compound is a semiconductor with a bandgap ΔE = 1.526 eV. Electrical conductivity properties of the complex compound as thermo- and magnetically sensitive element were studied, for this purpose a test sample of compressed material with 0.5×0.5×1.0 mm geometric dimensions was utilized.

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