Herein,we report on designing derivative carbon skeleton(C)of metal organic framework grown on carbon cloth(CC)substrate and Sb2O4 nanorods inhabit C,Sb2O4@C/CC composite electrode.The Sb2O4@C/CC composite electrode exhibits excellent electrochemical performance,with an initial specific capacity of 1 616.1 mA·h/g at a current density of 0.1 A/g.The reversible capacity can still be maintained at 1 161.5 mA·h/g after 100 cycles,which is close to the theoretical specific capacity of Sb2O4(1 227 mA·h/g)and superior to reported Sb2O4 based composite material.At a current density of 1 A/g,the specific discharge capacity of Sb2O4@C/CC electrode is as high as 837.2 mA·h/g,and after 300 cycles,its capacity remains at 495.5 mA·h/g,which is close to 71.5%of the initial capacity.Even at a high current density of 3 A/g,the reversible capacity of the Sb2O4@C/CC electrode still remains at 311.3 mA·h/g.
万方数据