Hexafluorophosphate intercalation into graphite electrode from gamma-butyrolactone solutions in activated carbon/graphite capacitors

被引：69
作者：
Gao, Jichao [1 ,2 ]
Tian, Shengfeng [1 ,2 ]
Qi, Li [1 ]
Yoshio, Masaki [3 ]
Wan, Hongyu [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Saga Univ, Adv Res Ctr, Saga 8400047, Japan
来源：
JOURNAL OF POWER SOURCES | 2015年 / 297卷
基金：
中国国家自然科学基金;
关键词：
Hexafluorophosphate; Gamma-butyrolactone; Ethylene carbonate; Graphite intercalation compounds; In situ Raman spectroscopy; Electrochemical capacitors; X-RAY-DIFFRACTION; ELECTROCHEMICAL INTERCALATION; BIS(TRIFLUOROMETHANESULFONYL)IMIDE ANIONS; BEHAVIOR; CARBON;
D O I：
10.1016/j.jpowsour.2015.06.111
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In our recent work, the solvent of ethylene carbonate (EC) has been found to retard the intercalation of anions into graphite electrodes. Here we demonstrate that gamma-butyrolactone (GBL) also exhibits suppressive effect on the intercalation of PF6- into the interlayer space between the graphene planes. The intercalation process of PF6- into graphite electrode from GBL has been investigated by in situ XRD, in situ Raman and EQCM. Furthermore, the effect of GBL has been compared with those of EC and propylene carbonate (PC). (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：121 / 126
页数：6
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