Electrochemical Hydrogen Generation Using Metal Organic Frameworks Derived Catalysts

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Koohdareh, Amir Reza | 2021

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 54340 (03)
University: Sharif University of Technology
Department: Chemistry
Advisor(s): Gholami, Mohamad Reza
Abstract:
In recent years, the widespread investigation on multi-transition metal oxides that with two or more transition metal oxides, have been increased rapidly for electrochemical application due to low cost, high conductivity and good electrochemical performance other than single metal oxides. In this project, CuCo2O4 nanoparticles were firstly fabricated by decomposing of CuCo-MOF as the template. The as prepared samples were used to synthesis a new nanocomposite of MoS2 and CuCo2O4. The best ratio of the two component were optimized to prepare the best electrocatalyst for Hydrogen evolution reaction (HER). The structure of prepared nanocomposite were investigated by various techniques such as FT-IR, XRD, BET, SEM, and TEM. The best HER activity was observed by the CuCo2O4: MoS2 with the mass ratio of 9:1 with a measured overpotential of -137 mV at the current density of -10 mA cm−2 and a Tafel slope of 49.36 mV dec−1. Cyclic voltammetry and electrochemical impedance spectroscopy were used to explore the electrochemical properties of the synthesised nanocomposite
Keywords:
Electrocatalysts ; Electrochemical Impedance Spectroscopy ; Linear Sweep Voltammetry ; Hydrogen Evolution Reaction ; Metal-Organic Framework ; Molybdenum Desulfide

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