CAJ | 학술논문

通过简单的水热法合成了α-MnO2纳米针，将其用作超级电容器电极材料，通过循环伏安和恒电流充放电测试手段对α-MnO2纳米针电极进行分析。结果表明，以1 mol· L-1 Na2 SO4为电解液，电极在-0.6～0.6 V的电压范围内具有良好的法拉第电容特性；在电流密度为0.01 A·g-1时，电极的比电容最高达56.7 F·g-1，且500次循环后，比电容保持率为82％，表明其具有良好的循环性能。
통과간단적수열법합성료α-MnO2납미침，장기용작초급전용기전겁재료，통과순배복안화항전류충방전측시수단대α-MnO2납미침전겁진행분석。결과표명，이1 mol· L-1 Na2 SO4위전해액，전겁재-0.6～0.6 V적전압범위내구유량호적법랍제전용특성；재전류밀도위0.01 A·g-1시，전겁적비전용최고체56.7 F·g-1，차500차순배후，비전용보지솔위82％，표명기구유량호적순배성능。
α-MnO2 Nanoneedles were synthesized by simple hydrothermal method and had been used as the supercapacitor electrode materials.Theα-MnO2 nanoneedles electrodes had been characterized by cyclic voltam-metry and galvanostatic charge-discharge tests.The results indicated that the electrodes had good Faraday ca-pacitive performance in the range of -0.6~0.6 V by using 1 mol·L-1 Na2 SO4 solution as electrolyte.Under current density of 0.01 A·g-1 ,the specific storage could up to the highest of 56.7 F·g-1 ,and remained 82%after 500 cycles,which showed the electrode possessed good cyclic stability.