KOH self-templating synthesis of three-dimensional hierarchical porous carbon materials for high performance supercapacitors

• DOI: 10.1039/c4ta02167c
• Publication Date: 2014-06-10T09:02:05Z
• Authors: Mingjie Li; Chenming Liu; Hongbin Cao; He Zhao; Yi Zhang; Zhuangjun Fan
• Keywords: Carbon fibers; Macropore; Specific surface area

We report a KOH self-templating synthesis of three-dimensional hierarchical porous carbon using resol as the precursor and both template activating agent. The resulting resol-derived (RPC) exhibits high surface area (up to 2700 m2 g−1) well-interconnected macropores with micropores mesopores decorated on walls. Consequently, RPC shows low internal resistance, specific capacitance, good rate capability excellent cycling stability in 6 M supercapacitor electrode. Because its easy fabrication cost, it offers alternative method for electrodes energy-storage devices such Li-ion batteries, fuel cells supercapacitors.