Fabrication of Silver/Graphene Oxide Nanocomposites for Supercapacitor Applications Using One-Step Electrochemical Deposition Method

Tan, Jun Fang (2021) Fabrication of Silver/Graphene Oxide Nanocomposites for Supercapacitor Applications Using One-Step Electrochemical Deposition Method. Final Year Project (Bachelor), Tunku Abdul Rahman University College.

Text Tan Jun Fang_Full Text.pdf Restricted to Registered users only Download (3MB)

Abstract

This project proposes the fabrication of Silver/GO binary nanocomposites for supercapacitor applications by utilizing a one-step electrochemical deposition method. Electrochemical deposition allows for the deposition of a thin and tightly adherent layer of material on a conductor substrate through simple electrolysis of a solution (known as an electrolyte). Silver/GO nanocomposite was chosen as both in nano-form have superior electrochemical properties. However, graphene-based supercapacitors have yet to seen widespread use in the electronics market due to the inability of graphene supercapacitors to be mass produced. In this project, a Ag/GO supercapacitor was fabricated using a short and simple 1-step electrochemical deposition process. The entire procedure only requires 2 hours 50 minutes, which is around 6 times faster than common synthesis methods. The results showed that the one-step electrochemical deposition was able to produce supercapacitor electrode materials that are comparable to other longer more complex methods using less time, material and cost, with the supercapacitor performing 105% better when compared to the G/Ag/MoS2 ternary composite and only 6.5% worse than the G/In2O3/MoS2 ternary composite from previous works.