Rice husk-derived porous carbons with high capacitance by ZnCl2 activation fo…

Abstract. Rice husk, a renewable agricultural by-product, was used as a precursor for the fabrication of high performance porous carbons for supercapacitors by ZnCl2 activation with or without microwave-assisted heating. Microporous carbons with the surface area bigger than 1442 m2/g are made at a ZnCl2/rice husk mass ratio as low as 1/1 from rice husk, which is really worthwhile from the v…