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Now showing items 11-20 of 22
Anthocyanin Sensitized Nanoporous TiO2 PEC Solar Cells
(2004)
Photoelectrochemical solar cells comprising a colloidal TiO2 photoelectrode and sensitized with anthocyanin pigments, delphinidin purple and cyanidin 3,5-diglucose extracted from Hibiscus sabdariffa and Ribes nigra plants, ...
Ultrasonic attenuation in Kenyan clay refractories
(1999)
Ultrasonic attenuation in clay refractories fabricated under different processing parameters has been measured. It was established that refractory clay samples with high compaction efficiencies (CE) were less attenuating ...
Structural and Optical Characterization of Nitrogen-doped TiO2 Thin Films Deposited by Spray Pyrolysis on Fluorine Doped Tin Oxide (FTO) Coated Glass Slides
(2012)
Undoped and nitrogen-doped titanium dioxide (TiO2) thin films of 400 nm thick deposited by spray pyrolysis
were structurally and optically characterized. The effect of substrate temperature on the optical properties of ...
Thermal shock behaviour of a kaolinte refractory prepared using a natural organic binder
(Springer, 2006)
The thermal shock resistance of a kaolinite-based refractory prepared with a binder derived from a plant (corchorus olitorius) was investigated. Thermal shock tests employing water-quenching technique were performed at ...
An Investigation of Thermal Shock in Porous Clay Ceramics
(2011)
The thermal shock resistance of porous ceramic materials is often characterized by the Hasselman parameters. However, in other
scenarios,the room-temperature residual strengths after thermal shock are also used to quantify ...
Titania Nanotubes Prepared by Synthesis Method for Dye Sensitized Electrochemical Solar Cells
(2008)
The area of nanostructured materials for dye
sensitized solar cells has gained great interest
especially after a breakthrough by Gratzel and
coworkers in developing a solar cell from
nanostructured oxide of titania ...
Controlled Texturing of Aluminum Sheet for Solar Energy Applications
(University of Nairobi, 2015)
Aluminum sheets were polished to reduce ruggedness and then textured in varying acid-ethanol
concentration etchant to form pores. The textured surface was characterized structurally by using
X-ray diffraction (XRD)which ...
Fracture strength of porous ceramics: stress concentration vs minimum solid area models
(2004)
In this study, we have reviewed recently published strength-porosity data of porous
ceramics, and compared these data with those computed from both the minimum contact solid area
(MCA) and the pore stress concentration ...
Intensity and Temperature Dependent Characterization of eta Solar Cell
(2008)
This study investigated the effectiveness of three physical-chemical methods namely; pH adjustment, precipitation with alum and the use of polyelectrolytes. In the treatment of diary wastewater from Brookeside milk processing ...