Self‐Templating Synthesis of 3D Hollow Tubular Porous Carbon Derived from Straw Cellulose Waste with Excellent Performance for Supercapacitors

• DOI: 10.1002/cssc.201802945
• Publication Date: 2019-01-21T09:23:32Z
• Authors: Zhimin Chen; Xiaofeng Wang; Beichen Xue; Qingling Wei; Lianghai Hu; Zichen Wang; Xiaomin Yang; Jieshan Qiu
• Keywords: Power density; Carbon fibers; Specific surface area

A three-dimensional hollow tubular porous carbon (SCPC) was prepared from straw cellulose waste through a self-templating method combined with NaOH activation. Straw acts both as source and structural template. The obtained SCPC exhibits 3D hierarchical network structure. has high specific surface area, mesoporosity ratio, low resistivity, which make it display excellent electrochemical performance for supercapacitors. showed capacitance of 312.57 F g-1 in 6 m KOH at 0.5 , an rate 281.32 even 15 outstanding cyclic stability 92.93 % retention after 20 000 cycles 1 . SCPC-based supercapacitors can deliver energy density 8.67 Wh kg-1 power 3.50 kW 28.56 14.09 Et4 NBF4 /PC, demonstrates the possibility applying This research not only offers facile sustainable preparation storage devices but also provides highly efficient utilization biomass waste.