Browsing Research Articles [MEWES] by Author "Pogrebnoi, Alexander"
Now showing items 1-7 of 7
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Biogas-slurry derived mesoporous carbon for supercapacitor applications
Enock, Talam; King’ondu, Cecil; Pogrebnoi, Alexander; Jande, Yusufu (Elsevier Ltd., 2017-09)This study reports on the transformation of biogas slurry into mesoporous carbon for supercapacitor electrodes. Pore structures have been modified by altering activation time, temperature and KOH/carbon mass ratio. The ... -
Dynamics of Kaolinite-Urea Nanocomposites via Coupled DMSO-Hydroxyaluminum Oligomeric Intermediates
Sempeho, Siafu Ibahati; Kim, Hee Taik; Mubofu, Egid; Pogrebnoi, Alexander; Shao, Godlisten; Hilonga, Askwar (Hindawi Publishing Corporation Indian Journal of Materials Science, 2015)Kaolinite-urea nanocompositeswere prepared via intercalation reactions in an attempt to investigate the dynamic nature of kaolinite morphology for advanced applications in controlled release systems (CRS). Characterization ... -
Encapsulated Urea-Kaolinite Nanocomposite for Controlled Release Fertilizer Formulations
Sempeho, Siafu Ibahati; Kim, Hee Taik; Mubofu, Egid; Pogrebnoi, Alexander; Shao, Godlisten; Hilonga, Askwar (Hindawi Publishing Corporation Journal of Chemistry, 2015)Urea controlled release fertilizer (CRF) was prepared via kaolinite intercalation followed by gum arabic encapsulation in an attempt to reduce its severe losses associated with dissolution, hydrolysis, and diffusion. ... -
Lawsone isomers, lawsone ether and bilawsone for dye-sensitized solar cells applications: DFT and UV-Vis studies.
Makoye, Amosi; Pogrebnoi, Alexander; Pogrebnaya, Tatiana (Elsevier Inc., 2020-01-01)Structural and optoelectronic properties of lawsone (L), lawsone ether (LE) and bilawsone (BL) were studied theoretically using the DFT and time-dependent DFT methods with hybrid functional B3LYP5 and 6-311G (2d,p) basis ... -
Status of Biomass Derived Carbon Materials for Supercapacitor Application
Enock, Talam; King’ondu, Cecil; Pogrebnoi, Alexander; Jande, Yusufu (Hindawi, 2017-01-31)Environmental concerns and energy security uncertainties associated with fossil fuels have driven the world to shift to renewable energy sources. However, most renewable energy sources with exception of hydropower are ... -
Theoretical Design of Complex Molecule via Combination of Natural Lawsone and Synthetic Indoline D131 Dyes for Dye Sensitized Solar Cells Application
Madili, Nyanda; Pogrebnoi, Alexander; Pogrebnaya, Tatiana (Scientific Research Publishing Inc., 2018-10-31)The dye sensitized solar cells (DSSCs) have been extensively studied due to their low production cost and simple fabrication process. Dye co-sensitization broadens the absorption spectrum of the sensitizer; thus enhances ... -
Tuning optoelectronic properties of triphenylamine based dyes through variation of pi-conjugated units and anchoring groups: A DFT/TD-DFT investigation.
Deogratias, Geradius; Seriani, Nicola; Pogrebnaya, Tatiana; Pogrebnoi, Alexander (Elsevier Inc., 2020-01-01)Dye-sensitized solar cells (DSSCs) have attracted widespread attention due to their unique features. In the present work, molecular engineered triphenylamine based dyes featuring donor-bridge-acceptor architecture have ...