Preparation of Mesoporous NiO with Excellent Pseudocapacitive Behavior

We report a simple and scalable strategy to synthesize mesoporous NiO with nickel oxide nanoparticles of 3–6 nm crystalline walls and 4–5 nm pore diameter with the assistance of MoO 4 2– as templating agent at room temperature. The product has a moderately high surface area of 294 m 2 g –1 and a high specific capacitance of 2418 F g –1 at a scan rate of 5 mV s –1 , which indicates its promising potential as supercapacitor.