Unusual energy storage and charge retention in Co-based metal-organic-frameworks

In this communication, we explore the cobalt based metal-organic-frameworks (Co-MOF) as a promising material for supercapacitors. The doctor bladed Co-MOF film exhibits a good pseudocapacitor behavior with the specific capacitance up to 206.76 F g(-1). The electrochemical redox switching is reversible perfectly for a long run which leads to the loss of only 1.5% in capacitance for 1000 electrochemical life cycle stability test. (C) 2011 Elsevier Inc. All rights reserved.