水热法合成多孔co(oh)2薄膜在超级电容器上的应用_外文翻译.zip
水热法合成多孔co(oh)2薄膜在超级电容器上的应用_外文翻译,翻译文献共8页 英翻中hydrothermal synthesized porous co(oh)2 nanoflake film for supercapacitor application porous co(oh)2 film directly grown on nickel foam is prepared b...
内容介绍
翻译文献共8页 英翻中
Hydrothermal synthesized porous Co(OH)2 nanoflake film for supercapacitor application
Porous Co(OH)2 film directly grown on nickel foam is prepared by a facile hydrothermal method. The as-prepared Co(OH)2 film possesses a structure consisting of randomly porous nanoflakes with thicknesses of 20–30 nm. The capacitive behavior of the Co(OH)2 film is investigated by cyclic voltammograms and galvanostatic charge-discharge tests in 2 mol/L KOH. The porous Co(OH)2 film exhibits a high discharge capacitance of 935 F g-1 at a current density of 2 A g-1 and excellent rate capability. The specific capacitance keeps a capacitance of 589 F g-1 when the current density increases to 40 A g-1. The specific capacitance of 82.6% is maintained after 1500 cycles at 2 A g-1.
多孔的Co(OH)2是通过一种简单的的水热法直接生长在泡沫镍上。制备好的Co(OH)2薄膜Co(OH)2样品具有无方向性多孔纳米片结构，纳米片厚度为20-30nm。Co(OH)2的电容特性是通过在2 mol/L KOH电解液下的循环伏安曲线和恒流充放电测试来研究的。多孔的Co(OH)2薄膜在 2 A /g的电流密度下的放电电容为935 F /g，表现出很高的大电流放电能力。这种特有的电容性保持着589 F/g-1的电容当电流密度增大到40A/g。在2 A /g下经过1500次循环后保持着82.6%的比电容。
Hydrothermal synthesized porous Co(OH)2 nanoflake film for supercapacitor application
Porous Co(OH)2 film directly grown on nickel foam is prepared by a facile hydrothermal method. The as-prepared Co(OH)2 film possesses a structure consisting of randomly porous nanoflakes with thicknesses of 20–30 nm. The capacitive behavior of the Co(OH)2 film is investigated by cyclic voltammograms and galvanostatic charge-discharge tests in 2 mol/L KOH. The porous Co(OH)2 film exhibits a high discharge capacitance of 935 F g-1 at a current density of 2 A g-1 and excellent rate capability. The specific capacitance keeps a capacitance of 589 F g-1 when the current density increases to 40 A g-1. The specific capacitance of 82.6% is maintained after 1500 cycles at 2 A g-1.
多孔的Co(OH)2是通过一种简单的的水热法直接生长在泡沫镍上。制备好的Co(OH)2薄膜Co(OH)2样品具有无方向性多孔纳米片结构，纳米片厚度为20-30nm。Co(OH)2的电容特性是通过在2 mol/L KOH电解液下的循环伏安曲线和恒流充放电测试来研究的。多孔的Co(OH)2薄膜在 2 A /g的电流密度下的放电电容为935 F /g，表现出很高的大电流放电能力。这种特有的电容性保持着589 F/g-1的电容当电流密度增大到40A/g。在2 A /g下经过1500次循环后保持着82.6%的比电容。
