PANI@{Cu_(10)As_(2)W_(18)}/RGO复合材料的合成及其在超级电容器中的应用

The Synthesis of PANI@{Cu_(10)As_(2)W_(18)}/RGO Composites for Supercapicitor Electrodes

通过超声复合的方法将[{Cl_(4)Cu_(10)(pz)_(11)}{As2W18O62}]·1.5 H2O(缩写Cu_(10)As_(2)W_(18)),聚苯胺(PANI)和还原氧化石墨烯(RGO)进行分子自组装,成功得到了PANI@{Cu_(10)As_(2)W_(18)}/RGO三元复合材料.采用SEM和XRD等方法对该材料的表面形貌和结构进行表征.此外,对PANI@{Cu_(10)As_(2)W_(18)}/RGO三元复合材料进行了电化学性能的研究,发现当碳布作为集流体,电流密度为1 A·g^(-1)时,比电容为1232.5 F·g^(-1),且在5000次充放电循环后,其比电容为初始比电容的74.8%,优于玻碳电极(1 A·g^(-1),596.2F·g^(-1)).将其制成超级电容器,在电流密度为1 A·g^(-1)时,比电容为611.25 F·g^(-1).

In the paper,PANI@{Cu_(10)As_(2)W_(18)}/RGO is synthesized by ultrasonic method,which is characterized by SEM and XRD.In addition,the PANI@{Cu_(10)As_(2)W_(18)}/RGO exhibits excellent electrochemical performance.When the current density of the working electrode is 1 A·g^(-1),the specific capacitance is 1232.5 F·g^(-1)by utilizing carbon clothe as the current collector,which is superior to glassy carbon electrode(1 A·g^(-1),596.2 F·g^(-1)).Meanwhile,the PANI@{Cu_(10)As_(2)W_(18)}/RGO shows remarkable cycling stability(78%capacitance retention after 5000 cycles).Then PANI@{Cu_(10)As_(2)W_(18)}/RGO is made into the all-solid-state supercapacitor,the specific capacitance is 611.25 F·g^(-1)at 1 A·g^(-1).