Abstract
An efficient evaporation-induced coating method combining microwave-assisted hydrothermal transformation and annealing is developed to fabricate an ideal electrode material from composites with a layer of hydrous RuO 2 on mesoporous silica nanoparticles (MSNs), for a high-performance supercapacitor. Total and RuO 2 -based specific capacitances are as high as 1125 and 2000 F g -1 , respectively. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.