Effect of high temperature treatment on the pore texture and electric properties of activated carbons

摘要：

High surface area activated carbon (AC) was heat-treated at high temperatures to improve the work-voltage of double layer capacitors (EDLCs). Effects of the high-temperature treatment on the pore structure and its electric performance were researched. After the original AC was heat-treated at 1500 for 2 ℃ h, its specific surface area and total pore volume decreased from 1312 to 947 m 2 /g, 0.87 to 0.57 cm 3 /g, respectively, while the work-voltage of capacitor can stabilize at 2.7 V even if it was charge/discharged for 6000 cycles and its connection resistance Rc decrease from 54.9 to 12.7Ω.

关键词： Electric double layer capacitors Activated carbon intercalation capacitance high-temperature treatment

作者: Zhang Liming Zhan Liang Qiao Wenming Zhang Rui Ling Licheng

作者单位: State Key Laboratory of Chemical Engineering ,East China University of Science and Technology, Shanghai 200237

会议类型: 国际会议

会议名称: The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)

会议地点: 大连

会议语种:英文

在线出版日期: 2008-08-04（万方平台首次上网日期，不代表论文的发表时间）