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Faculty of Natural Sciences@PUK

Faculty of Natural Sciences@PUK

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Synthesis, spectroscopic characterization and behavior of AC impedance spectroscopy of Cd(II) bis(N-para-methylphenyl dithiocarbamate)

Onwudiwe, Damain C.; Arfin, Tanvir; Strydom, Christien A.; Kriek, Roelof J. (Elsevier, 2013)

A new dithiocarbamate ligand, para-methylphenyl dithiocarbamate (L), has been synthesized at room temperature. The ligand was reacted with a cadmium salt to give bis(N-para-methylphenyl dithiocarbamate) Cd(II) (CdL2). The ...
Laser induced H2 production employing Pt-TiO2 photocatalysts

Falch, Anzel; Kriek, Roelof J. (Elsevier, 2013)

The photocatalytic production of hydrogen from water as well as from an aqueous methanol solution employing pre-treated TiO2 and various Pt-TiO2 photocatalysts was studied by using an Nd:YAG laser as irradiation source. ...
An electrochemical study of carbon dioxide electroreduction on gold-based nanoparticle catalysts

Lates, V.; Falch, A.; Jordaan, A; Peach, R.; Kriek, R.J. (Elsevier, 2013)

We report here on an electrochemical study or carbon dioxide electroreduction (CO2ER) employing electrochemical impedance spectroscopy (EIS) and a rotating ring-disk electrode (RRDE) on different gold based catalysts, ...
The impeding effect of dissolved oxygen on the photocatalytic reduction of [PdCln(H2O)4−n]2−n (n = 0–4) complexes employing different TiO2 photocatalysts in the absence of an added sacrificial reducing agent

Mahlamvana, F.; Kriek, R.J. (Elsevier, 2013)

The photocatalytic reduction of chloro-aqua palladium(II) complexes, [PdCln(H2O)4−n]2−n (n = 0-4), as a means of palladium metal recovery and waste water purification, was investigated employing four different titanium ...
An electrochemical and theoretical comparison of ionic transport through a polystyrene based titanium–vanadium (1:2) phosphate membrane

Arfin, Tanvir; Jabeen, Fakhra; Kriek, Roelof Jacobus (Elsevier, 2011)

Ionic potentials were measured across polystyrene based titanium–vanadium (1:2) phosphate membranes with 1:1 electrolytes at different concentrations. These observed values are found to compare well with membrane potentials ...
Complexation of palladium(II) with chloride and hydroxide

Cruywagen, J.J.; Kriek, R.J. (Taylor & Francis, 2007)

Complex formation of Pd(II) with chloride and hydroxide has been investigated by spectrophotometry at 25°C and ionic strength 1.0 M. For the chloride complexes [PdCl n (H2O)4− n ]2− n (n = 0–4), the formation constants, β ...