The appeal of ammonia is that it is easier to transport than hydrogen, and ammonia transport infrastructure already exists. So it's seen as potentially an effe

The appeal of ammonia is that it is easier to transport than hydrogen, and ammonia transport infrastructure already exists. So it's seen as potentially an effective way to deliver hydrogen to where it's needed. This reported technique to liberate hydrogen would make the final delivery step more efficient. But making ammonia is hazardous and tricky, and uses fossil fuel inputs.