Global carmakers and others who fight a feverish technology battle to push hydrogen as affordable and clean fuel in their vehicles may soon have an Indian research team to thank. Scientists led by K. Vijayamohanan Pillai at the National Chemical Laboratory (NCL) in Pune have tweaked a material that is at the heart of a hydrogen-based fuel cell in such a way that the electrochemical device is capable of delivering more power for the same set-up.