Browsing Theses and Dissertations (Chemical Engineering) by Supervisor "Manyala, Ncholu I."

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Development of natural dye based biodegradable colourimetric intelligent packaging sensor labels

Dlamini, Khulekani (University of Pretoria, 2021)

Colourimetric indicators were prepared using anthocyanins, poly(vinyl alcohol) and cellulose nano-fibre by the electro-spinning technique. The indicator label containing 2000 ppm anthocyanin was found to be the optimal dye ...
Enhancing the electrochemical properties of a Nickel-CobaltManganese ternary hydroxide electrode material using graphene foam for supercapacitors applications

Kitenge, Vianney Ngoyi (University of Pretoria, 2020)

Sustainable, environmentally friendly, and renewable energy sources are urgently needed as concerns about carbon emissions and the depletion of fossil fuels are becoming worrying. It is vital to explore cost-effective ...

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