 SWNTs can display thermal conductivity of 3500 W m−1 K−1, exceeding that of diamond., carbon nanotube production exceeded several thousand tons per year, used for applications in energy storage, device modelling, automotive parts, boat hulls, sporting goods, water filters, thin-film electronics, coatings, actuators and electromagnetic shields.CNT-related publications more than tripled in the prior decade, while rates of patent issuance also increased.