 The researchers have developed a new material called Copian NC at CNT, which is composed of copper nanoparticles embedded in carbon nanotubes and nitrogen-doped carbon materials. The material has been shown to be highly effective at both hydrogen evolution and oxygen evolution reactions, making it suitable for use in water electrolysis. Furthermore, this material has been found to be more efficient than other materials tested, with an overpotential of 153 mV in 0.5 mH2SO4 and 159 mV in 1.0 mKOH, and an overpotential of 270 mV in 1.0 mKOH when used as anodes or cathodes in an oxygen evolution reaction. This article was authored by Lulu Chai, Shui Hu, Xian Wang, and others.