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In this study, a novel negative electrode material was prepared by aligning α-Fe2O3 nanorods on a hierarchical porous carbon (HPC) skeleton. The skeleton was derived from wheat flour by a facile hydrothermal route to enhance conductivity, improve surface properties, and achieve substantially good electrochemical performances. The α-Fe2O3/HPC electrode exhibits enhanced specific capacitance of 706 F g-1, which is twice higher than that of α-Fe2O3. The advanced α-Fe2O3/HPC//PANI/HPC asymmetrical supercapacitor was built with an expanded volt