Turning up the heat for spray-on radiators

An international team has invented a novel material that can undergo an energy storage phase change without deforming. Researchers at the Chinese campus of the UK's Nottingham University explain that the material absorbs heat when above a certain temperature and releases it again when the ambient temperature falls. It could be used as energy-efficient cladding or simply sprayed on to walls and interior décor to cut heating bills by around a third, the team claims. A patent has now been granted in China and applications are pending elsewhere, with commercialization anticipated in two years.