In situ Grafted Carbon on Sawtooth-Like SiC Supported Ni for High-Performance Supercapacitor Electrodes.

A new C—Ni—SiC composite is prepared by hydrothermal growth of Ni(OH)2 on sawtooth-like SiC from a mixture of SiC, Ni(NO3)2 solution, cetyltrimethyl ammonium bromide, and urea (autoclave, 150 °C, 12 h) followed by calcination at 450 °C for 4 h to obtain NiO/SiC composite.