Despite being the most abundant element in the universe, until recently hydrogen (H2) was believed to rarely occur in free gaseous form on Earth and was mostly found forming more complex structures in combination with other elements. This is why most of the H2 currently utilised in industrial and manufacturing processes is generated primarily from fossil fuels. Since the production of conventionally manufactured hydrogen is associated with substantial releases of carbon dioxide, there have been ongoing attempts to replace it with other forms of H2 that are less carbon-intensive. While technologies such as carbon capture, utilisation, and storage, as well as renewable-powered electrolysis, are the most popular options for generating clean hydrogen, they are still significantly more expensive, and their application remains on a small scale compared to conventional methods. Therefore, a lower cost alternative with similar or lower carbon intensity could potentially revolutionise the sector and make a significant contribution towards a net-zero carbon future.