Cost Effective Hydrogen
- Scientists have, for the first time, developed a large-scale reactor that produces a substantial amount of hydrogen using sustainable sources like sunlight and water, which is a cost-effective and sustainable process.
- They have used an earth-abundant chemical called carbon nitrides as a catalyst for the purpose.
- This work is supported by the DST Nano Mission NATDP project.
- The team employed a low-cost organic semiconductor in carbon nitrides which can be prepared using cheaper precursors like urea and melamine at ease in a kilogram scale.
- When the sunlight falls on this semiconductor, electrons and holes are generated.
- The electrons reduced the protons to produce hydrogen, and holes are consumed by some chemical agents called sacrificial agents.
- If the holes are not consumed, then they will recombine with the electrons.
- Hydrogen generated in this manner can be used in many forms like electricity generation through fuel cells in remote tribal areas, hydrogen stoves, and powering small gadgets, to mention a few.
- Eventually, they can power the transformers and e-vehicles, which are long-term research goals under progress.
Source : waether.com