Development of Antimony-based Robust Electrocatalysts for Low-pH Water Oxidation Submitted in partial fulfillment of the requirements of the degree of Doctor of Philosophy of the Indian Institute of Technology Bombay, India and Monash University, Australia by Sibimol Luke Supervisors: Prof. Aswani Yella (IIT Bombay) Prof. Akshat Tanksale (Monash University) Dr. Alexandr N. Simonov (Monash University) The course of study for this award was developed jointly by Monash University, Australia and the Indian Institute of Technology Bombay, India and was given academic recognition by each of them. The programme was administrated by the IITB-Monash Research Academy. (Year 2021)