Electrochemically Controlled Ion-exchange Property of Carbon Nanotubes/Polypyrrole Nanocomposite in Various Electrolyte Solutions

The electrochemically controlled ion-exchange properties of multi-wall carbon nanotube (MWNT)/electronically conductive polypyrrole (PPy) polymer composite in the various electrolyte solutions have been investigated. The ion-exchange behavior, rate and capacity of the electrochemically deposited polypyrrole with and without carbon nanotube (CNT) were compared and characterized using cyclic voltammetry (CV), chronoamperometry (CA), electrochemical quartz crystal microbalance (EQCM), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). It has been found that the presence of carbon nanotube backbone resulted in improvement in ion-exchange rate, stability of polypyrrole, and higher anion loading capacity per PPy due to higher surface area, electronic conductivity, porous structure of thin film, and thinner film thickness providing shorter diffusion path. Chronoamperometric studies show that electrically switched anion exchange could be completed more than 10 times faster than pure PPy thin film. The anion selectivity of CNT/PPy film is demonstrated using X-ray photoelectron spectroscopy (XPS).

[1]  G. Guan,et al.  Electroactive ion exchange materials: current status in synthesis, applications and future prospects , 2016 .

[2]  B. Liu,et al.  Carbon nanotube catalysts: recent advances in synthesis, characterization and applications. , 2015, Chemical Society reviews.

[3]  Y. Kong,et al.  Electrically controllable perchlorate removal based on poly(aniline-co-o-aminophenol) doped with p-toluene sulfonate , 2015 .

[4]  Tarmo Tamm,et al.  Influence of ion-exchange on the electrochemical properties of polypyrrole films , 2014 .

[5]  Y. Sha,et al.  Poly(aniline-co-p-aminobenzoic acid): A Conducting Copolymer with Broadened Useful pH Range and Electrochemically Controllable Ion Exchange Behavior , 2014 .

[6]  Yan Liu,et al.  Layer-by-layer assembly of chemical reduced graphene and carbon nanotubes for sensitive electrochemical immunoassay. , 2012, Biosensors & bioelectronics.

[7]  Yuyan Shao,et al.  Graphene-polypyrrole nanocomposite as a highly efficient and low cost electrically switched ion exchanger for removing ClO₄⁻ from wastewater. , 2011, ACS applied materials & interfaces.

[8]  J. Heinze,et al.  Electrochemistry of conducting polymers--persistent models and new concepts. , 2010, Chemical reviews.

[9]  Qingji Xie,et al.  Electrochemical quartz crystal impedance study on the overoxidation of polypyrrole-carbon nanotubes composite film for amperometric detection of dopamine. , 2007, Biosensors & bioelectronics.

[10]  Yuehe Lin,et al.  Electrically controlled anion exchange based on polypyrrole and carbon nanotubes nanocomposite for perchlorate removal. , 2006, Environmental science & technology.

[11]  M. Engelhard,et al.  Preparation, characterization and anion exchange properties of polypyrrole/carbon nanotube nanocomposites. , 2006, Journal of nanoscience and nanotechnology.

[12]  Yuehe Lin,et al.  Electrosynthesis, characterization, and application of novel hybrid materials based on carbon nanotube–polyaniline–nickel hexacyanoferrate nanocomposites , 2006 .

[13]  K. Jüttner,et al.  EQCM study of the ion exchange behaviour of polypyrrole with different counterions in different electrolytes , 2005 .

[14]  Di Li,et al.  Functionalization of single-walled carbon nanotubes with Prussian blue , 2004 .

[15]  Toribio F. Otero,et al.  Polypyrrole: Diffusion Coefficients and Degradation by Overoxidation , 2004 .

[16]  J. Pawliszyn,et al.  Solid-phase microextraction based on polypyrrole films with different counter ions , 2004 .

[17]  Lee J. Richter,et al.  Template fabrication of protein-functionalized gold-polypyrrole-gold segmented nanowires , 2004 .

[18]  G. Wallace,et al.  Quartz crystal microbalance studies of the effect of solution temperature on the ion-exchange properties of polypyrrole conducting electroactive polymers , 2003 .

[19]  A. Öpik,et al.  Ion transport investigations of polypyrroles doped with different anions by EQCM and CER techniques , 2003 .

[20]  Liang Liang,et al.  Templateless assembly of molecularly aligned conductive polymer nanowires: a new approach for oriented nanostructures. , 2003, Chemistry.

[21]  J. Pawliszyn,et al.  Electrochemically controlled solid-phase microextraction based on conductive polypyrrole films. , 2002, Analytical chemistry.

[22]  K. Bouzek,et al.  Electrocatalytic Activity of Platinum modified Polypyrrole Films for the Methanol Oxidation reaction , 2001 .

[23]  Youn Tae Kim,et al.  Slow and Fast Charge Transport Processes in PPy / NO 3 Films , 2000 .

[24]  J. Pawliszyn,et al.  Solid phase microextraction of inorganic anions based on polypyrrole film , 2000 .

[25]  O. Inganäs,et al.  Conducting Polymer Hydrogels as 3D Electrodes: Applications for Supercapacitors , 1999 .

[26]  G. Inzelt,et al.  Electrochemical quartz crystal microbalance study of ion transport accompanying charging-discharging of poly(pyrrole) films , 1999 .

[27]  H. B. Mark,et al.  Electrochemical control of solid phase micro-extraction using unique conducting polymer coated fibers , 1999 .

[28]  J. Heinze,et al.  Charging process in polypyrrole films: effect of ion association , 1998 .

[29]  V. Sammelselg,et al.  Electrochemical properties of cation sensitive polypyrrole films , 1998 .

[30]  M. Hepel,et al.  Use of Electrochemical Quartz Crystal Microbalance Technique to Track Electrochemically Assisted Removal of Heavy Metals from Aqueous Solutions by Cation-Exchange Composite Polypyrrole-Modified Electrodes , 1997 .

[31]  In-Hyeong Yeo,et al.  A study on the initial growth of polypyrrole on a gold electrode by electrochemical quartz crystal microbalance , 1997 .

[32]  J. Heinze,et al.  Ionic exchange of the polypyrrole film with the PC lithium perchlorate solution during the charging process , 1996 .

[33]  K. Jüttner,et al.  Development of an anion/cation permeable free-standing membrane based on electrochemical switching of polypyrrole , 1996 .

[34]  R. Torresi,et al.  Ionic exchanges in dodecylbenzenesulfonate doped polypyrrole Part 1. Optical beam deflection studies , 1995 .

[35]  P. Pickup,et al.  Ion transport in polypyrrole and a polypyrrole/polyanion composite , 1993 .

[36]  M. Pyo,et al.  Cation and anion dominated ion transport during electrochemical switching of polypyrrole controlled by polymer-ion interactions , 1993 .

[37]  R. Torresi,et al.  The role of ion exchange in the redox processes of polypyrrole/dodecyl sulfate films as studied by electrogravimetry using a quartz crystal microbalance , 1992 .

[38]  William H. Smyrl,et al.  Quartz Crystal Microbalance Study: Ionic Motion Across Conducting Polymers , 1991 .

[39]  W. Smyrl,et al.  Quartz crystal microbalance analysis: Part I. Evidence of anion or cation insertion into electropolymerized conducting polymers , 1989 .

[40]  C. Zhong,et al.  The effect of incorporated negative fixed charges on the membrane properties of polypyrrole films , 1989 .

[41]  K. Honda,et al.  Charge-controllable poly pyrrole/poly electrolyte composite membranes: Part III. Electrochemical deionization system constructed by anion-exchangeable and cation-exchangeable polypyrrole electrodes , 1988 .