Abstract:
Generation of Hydrogen as clean and green fuel by splitting water is one of the
important aspects of mitigating the overuse of non-renewabale sources of energy and
its associated environmental degredation. Since the time when water was predictably
forseen as the coal of future there has been many scientific efforts to reduce water and
produce hydrogen which is struggingly uphill task in comparison to the other
alternatives like steam reforming process (presently holding 96% of the world’s
hydrogen production). These efforts include using sunlight as the major energy
source: Photochemical, Photoelectrochemical and PV-Electrolyzers. All these
methods utilize energy from sun to generate charge carriers which if prevented from
recombination results in successful utilization in redox reaction to produce hydrogen
and oxygen from water or generating required elecytrical enerrgy for electrolysis. For
this to achieve in an economical way, inexpensive novel materials which can
reduce/oxidize water is required.
