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发明公开
CN110838411A 一种碳布负载层状六方相三氧化钨超级电容器电极材料及其制备方法 有权

一种碳布负载层状六方相三氧化钨超级电容器电极材料及其制备方法
摘要：
本发明公开了一种碳布负载层状六方相三氧化钨超级电容器电极材料及其制备方法，首先用硝酸溶液对碳布进行预处理；称量Na2WO4·2H2O溶入去离子水中，调节PH至预定值，得到溶液A；其次将预处理过的碳布浸入装有溶液A的聚四氟乙烯内衬中进行均相水热反应，待反应结束后，将产物洗涤并干燥得到前驱体；最后将前驱体进行煅烧，得到碳布负载层状六方相三氧化钨超级电容器电极材料。本发明所制备的碳布负载层状六方相三氧化钨电极材料具有优异的电容性能，在8mA cm-2的电流密度下比容量可以达到2918mF cm-2，50mA cm-2的大电流密度下，5000圈的循环之后，容量保持率为99.3％，且本发明合成工艺简单，无毒无污染，是一种具有潜在优势的超级电容器电极材料。
摘要（英）：

The invention discloses a carbon cloth loaded layered hexagonal phase tungsten trioxide supercapacitor electrode material and a preparation method thereof. Carbon cloth is firstly pretreated by usinga nitric acid solution; Na2WO4.2H2O is weighed and dissolved in deionized water, and the PH is adjusted to a predetermined value to obtain a solution A; secondly, the pretreated carbon cloth is immersed into a polytetrafluoroethylene lining filled with the solution A for homogeneous hydrothermal reaction, and after the reaction is finished, a product is washed and dried to obtain a precursor; andfinally, the precursor is calcined to obtain the carbon cloth loaded layered hexagonal phase tungsten trioxide supercapacitor electrode material. The carbon cloth loaded layered hexagonal phase tungsten trioxide electrode material prepared by the invention has excellent capacitance performance; under the current density of 8mA cm<-2>, the specific capacity can reach 2918mF cm<-2>; the capacity retention ratio is 99.3% after 5000 circles of circulation under the large current density of 50mA cm<-2>, and the supercapacitor electrode material is simple in synthesis process, non-toxic and pollution-free, and has potential advantages.

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