Pregled bibliografske jedinice broj: 256295
Voltammetric characterization of metal sulfide particles and nano-particles in electrolyte solutions and natural samples
Voltammetric characterization of metal sulfide particles and nano-particles in electrolyte solutions and natural samples // Book of Abstracts. 4^th Croatian Symposium on Electrochemistry / Gojo, Miroslav ; Mandić, Zoran (ur.).
Zagreb: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2006. str. 110-115 (predavanje, nije recenziran, cjeloviti rad (in extenso), znanstveni)
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Naslov
Voltammetric characterization of metal sulfide particles and nano-particles in electrolyte solutions and natural samples
Autori
Bura-Nakić, Elvira ; Krznarić, Damir ; Ciglenečki, Irena.
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Book of Abstracts. 4^th Croatian Symposium on Electrochemistry
/ Gojo, Miroslav ; Mandić, Zoran - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2006, 110-115
Skup
4^th Croatian Symposium on Electrochemistry
Mjesto i datum
Primošten, Hrvatska, 28.05.2006. - 01.06.2006
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Nije recenziran
Ključne riječi
voltammetry; metal sulfide species; particles; nanoparticles; reduction processes
Sažetak
Recently, Ciglenečki et al. (1) demonstrated that in the solution of copper and sulfide (at μ M concentrations level) electrochemicaly active CuS solid phase particles were formed in a relatively short time, which when subjected to the reduction at the Hg electrode gave a voltammetric peak at potentials in the range from -0.9 to – 1.0 V vs.Ag/AgCl. Krznarić et al. (2) went further and reported that in some cases CuxS particles can be formed directly at Hg electrode surfaces and that the voltammetric reduction peaks obtained from these deposits are not clearly distinguishable from those obtained from sorbed nanoparticles. The aim of this work was to investigate whether other metal sulfide solid phase particles and nanoparticles also yield voltammetric response at the Hg electrode and to investigate possibility of their formation at the Hg electrode surface. In this paper we describe voltammetric results (cyclic voltammograms) obtained in the electrolyte solutions (0.55 M NaCl + 0.03 M NaHCO3, pH = 8.5) containing µ ; ; M levels of different metals and sulfide (Ag+, Cd2+, Hg2+, Pb2+, Zn2+ and HS-). The same electrochemical approach was applied in exploring the possible presence of metal sulfide species in natural samples.
Izvorni jezik
Engleski
Znanstvena područja
Geologija
