Rational Design, Synthesis and Characterisation of Novel Heterojunction Photoelectrodes in Tandem Cell for Photoelectrochemical Decarbonisation and Conversion of CO2 into Useful Chemicals

Mitigating carbon dioxide (CO2) emissions is crucial for achieving the goals of the Paris Agreement. Photoelectrochemical (PEC) technology for CO2 conversion provides a novel and sustainable approach for decarbonisation efforts in time of the global energy transition period. A tandem PEC cell with highly-efficient visible light-active photoanode and photocathode for the overall conversion of CO2 into formic acid is developed. The outcomes of this thesis serve as a crucial basis for further advancements in the field PEC CO2 conversion and will play a significant role in motivating ongoing endeavors towards achieving a worldwide shift to a decarbonised society.