​As society is moving away from fossil-based energy, hydrogen gas is likely to be a key player. The gas is a clean fuel: if it is used in a fuel cell to produce electricity, the only by-product is water. But it has one major drawback: when hydrogen mixes with air, it becomes highly flammable. Leaks have to be detected quickly, so the need for hydrogen gas sensors will rise dramatically in the future. Illustration: akitada31, P

Nanoscale knowledge of grains – one route to green energy

​Christoph Langhammer is exploring boundaries. But they are not external boundaries; they are internal ones – inside the nanoparticles he is building to create high-speed ultra-sensitive hydrogen gas sensors. The materials behave differently at the boundaries. He wants to exploit these traits to improve the particles.
​“Over the past year interest in hydrogen has soared, not least in the EU, and more and more people are starting to realize that current hydrogen sensors are not good enough – and that sensors of this kind will be needed everywhere,” says Christoph Langhammer, Professor of Chemical Physics at Chalmers University of Technology and Wallenberg Academy Fellow 2016.

Re​ad the full interview with Christoph Langhammer on kaw.wallenberg.org

Page manager Published: Wed 28 Jul 2021.