Electrode Properties of Nickel Phthalocyanine/Carbon Nanotube Composite in Ionic Liquid Electrolyte
- Resource Type
- Journal Article
- Authors
- Masahiro TOKITA; Masayuki MORITA; Minato EGASHIRA; Nobuko YOSHIMOTO; Wataru SAITO
- Source
- Electrochemistry. 2013, 81(10):783
- Subject
- Asymmetric Capacitor
Carbon Nanotube
Ionic Liquid
Nickel Phthalocynine
- Language
- English
- ISSN
- 1344-3542
2186-2451
The compatibility of ionic liquid 1-ethyl-3-methyl imidazolium tetrafluroborate (EMIBF4) with a redox capacitor system with redox species, nickel phthalocynine (NiPc) fixed at the interface between carbon nanotube (CNT) electrode and electrolyte has preliminarily been investigated. The redox of NiPc can be well reproduced by NiPc/CNT composite in EMIBF4 electrolyte. The asymmetric cell with NiPc/CNT negative electrode with EMIBF4 electrolyte exhibits significant contribution of redox charge on the cell capacitance even at high rate. The self-discharge behavior and electrolyte feature after long term charge-discharge reveal that the dissolution of NiPc is inhibited in EMIBF4 electrolyte.