High-Rate Capability of Supercapacitors Based on Tannin-Derived Ordered Mesoporous Carbons

Ordered mesoporous carbons (OMCs) are produced by an easy, fast, and green surfactant-water-assisted mechanochemical mesostructuration (SWAMM) method, using only tannin, water, and Pluronic F127 as raw materials. OMCs are physically activated with CO2 to increase their surface area from ∼500 to ∼2000 m2 g–1 while maintaining the mesoporosity fairly unaltered, which allow studying the effect of the micropore size distribution on the performance...