Solar Light-Triggered Hybrid Approaches for Green Hydrogen

In COP26 summit-2021 in Glasgow, India made commitment to replace 50% of its fossil fuel/coal technology with green fuel by 2030. The process for the conversion of water into hydrogen using full spectrum of natural sunlight needs long-term strategy. This chapter provides glimpses of approaches pursued by our group being pursued to address the ongoing technical issues and shortfalls for hydrogen generation technology. This is being pursued by implementing different strategies such as newer design of hybrid materials and systems, increased solar to hydrogen conversion efficiency and scaling and piloting technology. Plasmonic bimetallic Au-Pt, Cu-Pt and Ag-Pt titania composites have been developed and tested for photocatalytic water splitting in photovoltaic (PV) panel coupled 30 Ltr capacity photoreactor system showing hydrogen evolution rate (HER) ranging from 12 mmol/h/400 mL to 17 mmol/h/400 mL which is exemplary by considering the uses of solar generated energy. Functional PV-based facilitated Water Electrolyzer (WE) system is showing promising leads of HER of 1.12 L/min. Learning objectives: