In the present study, a new biomass-derived multilayer graphene-like low dimensional carbon material was prepared through the facile one-step carbonization of glutinous rice without conventional KOH chemical activation at 900 °C in an argon atmosphere. The formation of disordered microporous and mesoporous on carbon, the high specific surface area of 1,371.50 m² g⁻¹, and the pore volume of 2.351 cm³ g⁻¹ were confirmed by N₂ adsorption and desorption. As a merit of its favorable structural features, the graphene-like carbon electrode exhibits an enhanced electric double layer capacitance (high specific capacitance of 289.9 F g⁻¹ and 174 F g⁻¹ at 0.5 A g⁻¹ and 10 A g⁻¹) and excellent cycling stability of 88% after 20,000 cycles at a current density of 8 A g⁻¹. This observed electrochemical performance clearly indicates that activated carbon derived from glutinous rice could be used as a promising electrode material in a supercapacitor for electrochemical energy storage.

在本研究中，通过在不进行常规KOH化学活化的情况下，在氩气气氛下对糯米进行简单的一步碳化，制备了一种新的生物质衍生的多层石墨烯样低维碳材料。通过N ₂吸附和解吸，证实了在碳上形成无序的微孔和中孔，比表面积为1,371.50 m ²  g ^-1，孔体积为2.351 cm ³  g ^-1。作为其良好的结构特征的优点，石墨烯状碳电极表现出增强的双电层电容（在0.5 A g时的高比电容为289.9 F g ^-1和174 F g ^-1-1和10 A g ^-1）和20,000次循环后在8 A g ^-1的电流密度下具有88％的出色循环稳定性。该观察到的电化学性能清楚地表明，源自糯米的活性炭可用作超级电容器中用于电化学能量存储的有希望的电极材料。