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cobalt-nanoflakes
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Optimizing Co Nanoflakes Growth Parameters and Modifying Their Electro-catalytic Performance Using Carbon Nanostructures for Water Oxidation Reaction
, M.Sc. Thesis Sharif University of Technology ; Naseri, Naimeh (Supervisor)
Abstract
Ease of solar hydrogen production using water splitting and its environmental benefits, distinct hydrogen from other energy carriers. Hydrogen is the most abundant material in the world that make up more than 90% of the world compounds. So applying this material as a clean fuel is the best way to prevent environmental problems caused by fossil fuels. For efficient hydrogen production from water, a suitable electrocatalyst with low overpotential, high mechanical strength and reasonable catalytic activity must be utilized. In this research, cobalt based electrocatalyst was used considering that electrodepositon conditions play an important role in its final efficiency. On the other hand,...
Engineered cost-effective growth of Co-based nanoflakes as a sustainable water oxidation electrocatalyst
, Article Journal of Physics D: Applied Physics ; Volume 50, Issue 47 , 2017 ; 00223727 (ISSN) ; Naseri, N ; Sharif University of Technology
Abstract
Developing low-cost, scalable and reproducible synthesis methods for water oxidation reaction (WOR) catalysts is highly desirable and also challenging in energy, environmental and industrial applications. In this context, electrochemical deposition is known as an easy and cost-effective technique in nanomaterial growth. Herein, cobalt-based nanoflakes were grown on a flexible and commercially available steel mesh substrate by electrodeposition approach with a crystalline structure as a mixture of oxide, hydroxide and oxyhydroxide phases. For the first time, the correlation between electrodeposition parameters, time and current density, and morphological characteristics of the grown...