Abstract: “This review paper summarizes the problems associated with transportation as regard to automobile emissions caused by fossil fuel combustion and ways of circumventing such problems. Hydrogen is perhaps the cleanest fuel though hydrogen in its molecular form is hardly available naturally. As such, current methods of hydrogen production and their problems will be revealed. Hydrogen production through water photo-splitting will then be thoroughly reviewed. Our work on the use of silver and niobium(v)-doped TiO2 in water photosplitting is then described. Silver nanoparticles deposited on TiO2 nanowires are capable of absorbing in the visible range due to surface plasmon resonance effect while Nb(V) introduces electronic energy levels within the band gap of titanium dioxide comparable to vibrational energy levels of titanium dioxide thus enabling absorption of infrared radiation and upconversion. This catalyst is perhaps the fasted water splitting catalyst designed and developed so far and i”

Keywords: greener transport, hydrogen energy, water photo-splitting, fuel cells, oxygen reduction electrocatalysts