Properties, Synthesis and Electrochemical Applications of 2D Materials

Abstract

The first part of this thesis, covers a review of the different forms of interfaces arising from different heterostructures at the structural and atomic level, underlining and correlating the principle mechanisms responsible for the performance enhancement in the HER , hydrogen evolution reaction electrocatalysts.

The second part of this thesis investigates the synthesis and Electrochemical Kinetics of Graphene Oxide Materials toward the Hydrogen Evolution Reaction. The unique structure of MoS2@NiBGO/CNT with multi-interfaces was investigated and exhibited improved electron kinetics, more efficient hydrogen evolution and excellent durability as confirmed by the structural and electrochemical measurements.

The final part of this thesis investigates the Synthesis and Manipulation of 3D Graphene Materials toward the Kinetics of Electrodes in Flow Batteries. The functionality of 3DG particles as additives for free standing sheets of carbon nanotubes ( CNTs ) was demonstrated toward the VO2+/VO2 + redox couple. The application of 3DG additives as CNT spacers that are also electroactive was demonstrated for the first time; we showed that rate constant ( 𝑘 o increased as 3DG particles size decreased, indicating improved activity towards the VO2+/VO2 + redox couples, which can be ascribed to the improved wettability and higher porosity.

Date of Award	5 Jun 2024
Original language	American English
Supervisor	Ebrahim Al Hajri (Supervisor)