A pressurised hydrogen cylinder inside a Toyota Mirai fuel-cell electric car at a company showroom in Tokyo Photo: Bloomberg/Getty

Handling hydrogen: compressed, liquid, ammonia or LOHC?

The way that clean hydrogen is stored and transported will have a huge impact on its cost and therefore its viability, explains Leigh Collins in the second part of an in-depth special report

24 September 2019 11:45 GMT Updated  24 September 2019 12:31 GMT