Enhanced electrochemical response of solution-deposited n-doping polymer via cocasting with ionic liquid

被引：7

作者：

Irvin, David J. ^{[2
]}

Stenger-Smith, John D. ^{[3
]}

Yandek, Gregory R. ^{[4
]}

Carberry, Jamie R. ^{[1
]}

Currie, Daniel A. ^{[1
]}

Theodoropoulou, Nikoleta ^{[1
]}

Irvin, Jennifer A. ^{[1
]}

机构：

[1] SW Texas State Univ, Coll Sci, San Marcos, TX 78666 USA

[2] Syst & Mat Res Corp, Austin, TX 78756 USA

[3] USN, Res Dept, Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA

[4] USAF, Prop Mat Applicat Branch, Res Lab, Prop Directorate Edwards AFB, Edwards AFB, CA 93524 USA

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2012年 / 50卷 / 16期

基金：

美国国家科学基金会;

关键词：

co-casting; electroactive polymer; conducting polymers; electrochemistry; morphology; ion mobility; ionic liquid; n-doping; QUARTZ-CRYSTAL MICROBALANCE; LADDER POLYMERS; CONDUCTING POLYMERS; FILMS; TRANSPORT; REDOX; STATE; BBL;

D O I：

10.1002/polb.23111

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel cocasting approach is presented for improving electroactivity of solution-cast films of conducting polymers. Solutions of the n-doping polymer poly(benzimidazobenzophenanthroline) (BBL) were co-deposited with the ionic liquid electrolyte 1-ethyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide (EMIBTI). The resultant co-continuous mixture yielded highly porous polymer films (CC-BBL) upon removal of solvent and EMIBTI. Electrochemical quartz crystal microgravimetry revealed that the n-doping process in neat ionic liquid is anion-dominant, which is contrary to what is observed in dilute electrolyte solutions. The CC-BBL films exhibit a thirty-fold increase in initial current response and capacity relative to non-cocast BBL films. While current response and capacity of the non-cocast BBL improve with cycling, they level out after 800 cycles at 35% of those of the CC-BBL. CC-BBL shows high n-doping stability; no decrease in electroactivity is seen after 1000 cycles. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys, 2012

引用

页码：1145 / 1150

页数：6