As a member of carbon-based materials, ordered mesoporous carbon (OMC) still suffers from poor capacity for supercapacitive applications. Functionalization the skeleton with pseudocapacitive functionalities is an efficient way to enhance the capacity of OMCs. Herein, a designed SiO2@MgO nanoparticle with uniform diameters was employed as template towards the synthesis of pseudocapacitive oxygen functionalized OMC. The obtained carbons possess ordered mesoporous structure, large surface area, and rich pseudocapacitive oxygen species. As electrode for supercapacitor in 1.0M H2SO4, the SiO2@MgO templated OMC achieves higher capacitance (257 Fig) than pure 5102 templated OMC (180 F/g), surfactant templated OMC (152 F/g) and commercial activated carbon (110 F/g) owing to the high pseudocapacitive oxygen functionalities, providing more capacity by reversible Faradaic reaction. (C) 2017 Elsevier B.V. All rights reserved.