Nm size rose= highly efficient catalyst for H2

https://phys.org/news/2017-12-superior-hydrogen-catalyst.html

I know a lot of folks grip and moan about going to H2 for cars but there are real advantages over fossil fuels like using the same basic engine we have used for over 100 years and using similar technology as petrol stations now.

I think H2 may be an ideal inbetween tech till electics are improved in terms of range and power. Electrics are simpler mechanically for sure.