全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
材料工程  2005 

纳米NiO的制备及其赝电容特性研究

Keywords: 纳米NiO,沉淀转化法,超级电容器,比容

Full-Text   Cite this paper   Add to My Lib

Abstract:

运用沉淀转化法制备Ni(OH)2超微粉末,并通过热处理得到纳米NiO.利用TEM,TG,XRD,循环伏安和恒流充放电测试对样品进行了分析和表征.结果表明,实验制备的NiO粒径为10nm左右,在-0.05~0.35V(vsSCE)的电位范围内表现出典型的法拉第赝电容行为,在电流密度为2mA·cm-2时,其比容达到243F·g-1.

References

[1]  ANDREW B.Ultracapacitors:why,how,and where is the technology [J].Journal of Power Sources,2001,91:37-50.
[2]  李辰砂,李贵涛,田秋,等.碳纳米管的空气和二氧化碳活化及其对双电层电容器性能的改进[J].材料工程,2004,(2):10-13.
[3]  CONWAY B E.Transition from supercapacitor to battery behavior in electrochemical energy storage [J].Journal of the Electrochemical Society,1991,138(6):1539-1548.
[4]  VENKAT S,JOHN W.An electrochemical route for making porous nickel oxide electrochemical capacitors [J].Journal of Electrochemical Society,1997,144(8):L210-L213.
[5]  LIU K,ANDERSON M.Porous nickel oxide/nickel films for electrochemical capacitors [J].Journal of Electrochemical Society,1996,143(1):124-130.
[6]  肖占文,杨邦朝,戴开良.计算机控制的电化学暂态测量系统[J].功能材料,1998,29(增刊):802-804.
[7]  DEYANG Q,HANG S.Studies of activated carbons used in double-layer capacitors [J].Journal of Power Sources,1998,74:99-107.
[8]  VENKAT S,JOHN W.Studies on the capacitance of nickel oxide films:effect of heating temperature and electrolyte concentration [J].Journal of Electrochemical Society,2000,147(3):880-885.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133