Synthesis of perovskite-like NiTiO3 nanoparticles as an electrode material by a rapid solid combustion technique induced by microwave irradiation

We report a rapid one-step high-yield spontaneous combustion procedure accelerated by microwave irradiation to synthesize NiTiO3 nanoparticles with high pseudocapacitive behavior. The reaction was performed in a solid state recipe into a home-made melting pot to capture microwave heating, mutate reaction temperature and supply in situ calcination conditions without any external treatment. Structural and morphological characteristics of the obtained product were evaluated in detail where the synthesis of a pure single phase of NiTiO3 with a particulate morphology and average particle size of about 30 nm was revealed. The electrochemical properties of the fabricated NiTiO3 nanoparticles was investigated by cyclic voltammetry tests. As expected, the results indicated an acceptable specific capacitance about 257 F g(-1) at scan rate of 10 mVs(-1) with a good reversible redox reaction and stable cycle life. The capacity retention of about 92% after 1000 cycles showed highly chance of this metal oxide as an electrode material for electrochemical devices.