Solvothermal synthesis of cobalt/nickel layered double hydroxides for energy storage devices
By Meng, Xiaoyi; Feng, Meigui; Zhang, Hong; Ma, Zhiguang; Zhang, Cuimiao
Published in Journal of Alloys and Compounds
2017
Abstract
Abstract Three-dimensional nanostructured cobalt/nickel layered double hydroxides (Co1?xNix LDHs) were synthetized by a solvothermal method using ethanol as solvent and urea as alkali source. By simply tailoring the molar ratio of nickel and cobalt, the Co0.2Ni0.8 {LDH} with optimal electrochemical property is determined. Moreover, a hybrid device was successfully fabricated by using the Co0.2Ni0.8 {LDH} as the positive electrode and activated carbon (AC) as the negative electrode. The hybrid Co0.2Ni0.8 LDH//AC device delivered a high energy density and a power density, suggesting its promising energy storage applications in the future.