Hydrogen can be used as a carbon-free source of energy in a wide range of applications including home heating, transportation and industry. However, there are significant challenges that must be overcome to ensure the safe and efficient storage and transportation of the gas.

In this episode of the Physics World Weekly podcast, the materials expert Krzysztof Koziol explains why he is developing graphene-based materials and polymers to facilitate a hydrogen economy. Based at the UK’s Cranfield University, he chats about how existing national infrastructure for distributing natural gas can be retrofitted to safely carry hydrogen. Koziol also talks about his collaboration with Airbus to develop a cryogenic storage system that could lead to hydrogen-powered aircraft.