以Co(NO3)2·6H2O为原料,在280 ℃下,采用简单的熔盐法合成了亚微米Co3O4.运用X射线衍射(XRD),扫描电子显微境(SEM)对产物的相结构和形貌进行了分析.通过循环伏安法和恒电流充放电法测试了亚微米Co3O4电化学性能.电化学测试结果表明:在6 mol/L KOH溶液中,保温时间为3h时,Co3O4亚微米颗粒的比电容最高,在0.4 A/g充放电电流密度下放电比电容为187 F/g,并且在1 A/g电流密度下循环1000次后比电容保持首次电容的51.4％.
参考文献
| [1] | 陈野,张尊波,张巍,舒畅,刘良.熔盐法合成MnO2粉体及其超级电容性能[J].硅酸盐学报,2008(08):1053-1056. |
| [2] | 陈野,张春霞,舒畅,葛鑫,韩丹丹,张密林.低温熔盐法制备MnO2及其电容性能研究[J].硅酸盐通报,2007(02):260-263. |
| [3] | 江奇,瞿美臻,张伯兰,于作龙.电化学超级电容器电极材料的研究进展[J].无机材料学报,2002(04):649-656. |
| [4] | 袁安保,章庆林.超级电容器材料纳米Co3O4的固相法制备及电化学性能[J].功能材料与器件学报,2007(01):1-6. |
| [5] | Mao-Cheng Liu;Ling-Bin Kong;Chao Lu .A Sol-Gel Process for Fabrication of NiO/NiCo2O4/Co3O4 Composite with Improved Electrochemical Behavior for Electrochemical Capacitors[J].ACS applied materials & interfaces,2012(9):4631-4636. |
| [6] | Jiachun Deng;Litao Kang;Gailing Bai;Ying Li;Peiyang Li;Xuguang Liu;Yongzhen Yang;Feng Gao;Wei Liang.Solution combustion synthesis of cobalt oxides (Co_3O_4 and Co_3O_4/CoO) nanoparticles as supercapacitor electrode materials[J].Electrochimica Acta,2014:127-135. |
| [7] | M. V. Reddy;Christie Thomas Cherian;Kannan Ramanathan;Kevin Chee Wei Jie;Tew You Wen Daryl;Tan Yi Hao;S. Adams;K. P. Loh;B. V. R. Chowdari.Molten synthesis of ZnO.Fe_3O_4 and Fe_2O_3 and its electrochemical performance[J].Electrochimica Acta,2014:75-80. |
| [8] | S. Vijayakumar;A. Kiruthika Ponnalagi;S. Nagamuthu;G. Muralidharan.Microwave assisted synthesis of Co_3O_4 nanoparticles for high-performance supercapacitors[J].Electrochimica Acta,2013:500-505. |
| [9] | 葛鑫,陈野,张春霞,舒畅.Co3O4的制备及电容性能的研究[J].电池,2007(02):141-142. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%