物理化学学报 >> 2011, Vol. 27 >> Issue (03): 620-626.doi: 10.3866/PKU.WHXB20110331

电化学和新能源 上一篇    下一篇

HY分子筛为模板合成的微孔炭及其电化学电容性能

李文, 周晋, 邢伟, 禚淑萍, 吕忆民   

  1. 山东理工大学化学工程学院, 山东 淄博 255049
  • 收稿日期:2010-10-07 修回日期:2010-12-16 发布日期:2011-03-03
  • 通讯作者: 周晋, 禚淑萍 E-mail:zhuosp_academic@yahoo.com;zhoujin820514@163.com
  • 基金资助:

    山东省优秀中青年科学家科研奖励基金(BS2009NJ014)和山东省科技攻关项目(2009GG10007006)资助

Preparation of Microporous Carbon Using a Zeolite HY Template and Its Capacitive Performance

LI Wen, ZHOU Jin, XING Wei, ZHUO Shu-Ping, Lü Yi-Min   

  1. School of Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong Province, P. R. China
  • Received:2010-10-07 Revised:2010-12-16 Published:2011-03-03
  • Contact: ZHOU Jin, ZHUO Shu-Ping E-mail:zhuosp_academic@yahoo.com;zhoujin820514@163.com
  • Supported by:

    The project was supported by the Outstanding Young Scientist Foundation of Shandong Province, China (BS2009NJ014) and Science and Technology Research Program of Shandong Province, China (2009GG10007006).

摘要:

以HY分子筛为模板, 采用糠醇浸渍炭化法和糠醇浸渍-乙腈气相沉积炭化法制备了多种微孔炭材料, 分别标记为PFA系列和AN系列, 并研究了其电化学电容性能. X射线衍射(XRD)测试表明AN系列炭材料较好地复制了HY分子筛模板的孔结构有序性. X射线光电子能谱仪(XPS)测试表明, 乙腈气相沉积在炭材料中引入丰富的含氮官能团. 氮气吸附测试表明, 炭材料是典型的微孔材料, 具有较高的比表面积, 较窄的孔径分布范围. 电化学测试表明, AN系列炭材料电容性能较好, 并具有明显的赝电容, 其中AN8的比电容最大可达210 F·g-1. AN系列炭材料的电容保持率与材料的导电性和介孔率有关.

关键词: HY分子筛, 微孔炭材料, 气相沉积, 超级电容器, 模板法

Abstract:

Several microporous carbons were prepared by polyfurfuryl alcohol-impregnation and impregnation-acetonitrile chemical vapor deposition (CVD) using zeolite HY as a template, denoted as PFA carbons and AN carbons, respectively. These were used as electrode materials for supercapacitors. X-ray diffraction (XRD) patterns show that the structural regularity of the zeolite was well-replicated by the carbon structures prepared by impregnation-CVD. X-ray photoelectron spectroscopy (XPS) confirmed that the AN carbons possess abundant nitrogen-containing groups because of the CVD of acetonitrile. The prepared carbons were typical microporous materials as determined by N2 adsorption/desorption test and they had a high BET surface area and narrow pore size distribution. Electrochemical tests showed that the AN carbons had higher capacitance because of their evident pseudo-capacitance from the nitrogen- containing groups. AN8 had a high capacitance up to 210 F·g-1. The capacitance retention ratio of the AN carbons were determined to its electric conductivity and mesoporosity.

Key words: HY zeolite, Microporous carbon material, Chemical vapor deposition, Supercapacitor, Templating method

MSC2000: 

  • O646