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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 MoO42– as templating agent at room temperature. The product has a moderately high surface area of 294 m2 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.