“…However, the searching for electrode materials with higher electrochemical performance are still seriously needed, because of the practical application of supercapacitors are hindered by their low specific capacitance, poor cycling stability and so on. Over the past few years, lots of transition metal oxides and metal hydroxide such as MnO 2 , NiO, Co 3 O 4 , Ni(OH) 2 , and NiAl-LDH [6][7][8][9][10][11][12][13][14], have been wildly studied, because of there lower price and lower toxic nature. However, the intrinsic low conductivity of these metal oxides limited the performance of the supercapacitors.…”