期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 8, 期 7, 页码 1569-1573出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201300089
关键词
capacitors; cyclic voltammetry; electrochemistry; host-guest systems; ionic clathrate hydrates
资金
- National Research Foundation of Korea (NRF) through Korean Government (MEST) [2010-0029176]
- WCU program of the Ministry of Education and Science & Technology (MEST) [31-2008-000-10055-0]
- Ministry of Knowledge Economy, through the Recovery/Production of Natural Gas Hydrate using Swapping Technique (Korea Institute of Geoscience and Mineral Resources (KIGAM), Gas Hydrate RD Organization)
Herein, we suggest a new approach to an electric double-layer capacitor (EDLC) that is based on a proton-conducting ionic clathrate hydrate (ICH). The ice-like structures of clathrate hydrates, which are comprised of host water molecules and guest ions, make them suitable for applications in EDLC electrolytes, owing to their high proton conductivities and thermal stabilities. The carbon materials in the ICH Me4NOH5H2O show a high specific capacitance, reversible charge-discharge behavior, and a long cycle life. The ionic-hydrate complex provides the following advantages in comparison with conventional aqueous and polymer electrolytes: 1)The ICH does not cause leakage problems under normal EDLC operating conditions. 2)The hydrate material can be utilized itself, without requiring any pre-treatments or activation for proton conduction, thus shortening the preparation procedure of the EDLC. 3)The crystallization of the ICH makes it possible to tailor practical EDLC dimensions because of its fluidity as a liquid hydrate. 4)The hydrate solid electrolyte exhibits more-favorable electrochemical stability than aqueous and polymer electrolytes. Therefore, ICH materials are expected to find practical applications in versatile energy devices that incorporate electrochemical systems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据