Rapid and green fabrication of psuedocapacitor electrode by utilizing novel ULPING technique

Supercapacitors are becoming popular in the recent technological revolution in portable electronics, EVs, and power-demanding applications forecasting exponential growth in billions of dollars in the near decade. Psuedocapacitors, a type of supercapacitor is growing in extreme demand due to their larger specific capacitance and a significant boost in energy density. Although they have great merits, pseudocapacitors are not yet widely commercialized due to their long and extensive fabrication time. This thesis presents a single-step, in-situ, binder-free method to fabricate the electrodes with a fiberpulsed laser. This manufacturing method is efficient and is deemed green because it doesn't require chemical precursors or produce waste. In this work, we investigate multiple parameters of a pulsed laser in the formation of an oxide layer directly grown on the irradiated surface of a transition metal. We used our lab-developed Ultra-short Laser Pulses for In-situ Nanostructure Generation (ULPING) technique for fabrication. The effectiveness of the synthesized active surface was confirmed with help of material characterization and electrochemical analysis. In this study, we observe and draw relationships between the electrochemical performance and the physical properties of the irradiated surface such as surface morphology, surface area, and surface distribution. This study promotes green synthesis and the economical fabrication of pseudocapacitors.

Name thesis:degree_name

Master of Applied Science (MASc)

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor

University of Ontario Institute of Technology

Year dc:date.issued

2023

Author dc:creator

• Khot, Mayuresh

Advisor dc:contributor.advisor

• Kiani, Amirkianoosh

Language dc:language.iso

en

Handle dc:identifier.uri

https://hdl.handle.net/10155/1886

OAI identifier oai:identifier

oai:ontariotechu.scholaris.ca:10155/1886