Abstract
The aniline electropolyinerization under the magnetic field was studied by cyclicvoltammetry and potentiostatic step techniques. Theinaximum peak current was obtained at 0. 58 Twhen the magnetic flux was perpendicular to the surface of the working electrede in H_2SO_4 solution.These were speculated in terins of magnetic dircctional effect. But when the magneic flux directed inparallcl with the surface of elcctrode, the peak current obviously increased as the magnetic flux densityrised. The results uere explained as the enhancement of mass transfer by magnetohydredynamic(MHD) mechanism. The PAN film growth via a two-dimentional (2-D) instantaneous nucleationunder the electron transfer kinetic controlled. The enhanced effects were also obtained in HCl、 HClO_4、HBF_4 solutions.
Keywords
Conducting polymer, Polyaniline, Electropolymerization, Nucleation, Magnetic field effect
Publication Date
1995-05-28
Online Available Date
1995-05-28
Revised Date
1995-05-28
Received Date
1995-05-28
Recommended Citation
Lintao Cai, Shibing Yao, Shaomin Zhou.
The Effects of Magnetic Field onthe Electropolymerization of Aniline[J]. Journal of Electrochemistry,
1995
,
1(2): 159-165.
DOI: 10.61558/2993-074X.1277
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol1/iss2/5
References
1HoffAJandLuusEJ.BiophysicalEffectsofSteadyMagneticFields,edbyMaretG,KiepenhourerJandBoccaraN,Spring-Verlag.1986:742WakasaM,SakaguchiY,HayashiH.Magneticfieldeffectonphotodecompositionofp-aminophenyldisulfideinamicellarsolution.J.Phys.Chem..1993,97:17333TurroNJ,ChowMF,ChungCJetal.Magneticfieldandmagneticisotopeeffectsoncagereactionsinmicellarsolutions.J.Am.Chem.Soc.,1980,102:48434MurayamaM.Orientationofsicklederythrocytesinaniagneticfield.Nature.,1965,206:4205StuppIetal.Pullingpolyniersintoline.ScienceNews,1986,129:2976FahidyTZ.Magnetoelectrolysis.J.APPl.Electrochem.,1983,13:5537KellyEJ.Magneticfieldeffectsonelectochemicalreactionsoccuringatmetal/flowing-electrolyteinterfaces.J.Electrochem.Soc.,1977,124:9878FahidyTZ.Hydredynamicmodelsinmagnetoelectrolysis.Electrochim.Acta.,1973,18:6079IsmailMIandFahidyTZ.Morphologiealcharacteristicsofcopperdepositiononstainlesssteelcathodes.J.Appl.Electrochem.,1981,11:54310TakahashiFTorniiKandTakahashiH.Theelectrochemicalasvmmetricreductionofα-ketoacidsinthemagneticfields.ElectrochimActa.1986,31:12711KalajiM,NyholmL,PeterLM.AmicroelectredestudyoftheinfluenceofpHandsolutioncompositionontheelectrochemicalbehaviourofpolyanilinefilms.,J.Electroanal.Chem.,1991,313:27112MohilnerDM.AdamsRN,ArgersingerWJ.Investigatinofthekineticsandmechanismoftheanodicoxidationofanilineinaqueoussulfuricacidsolutionsataplatintimelectrode.J.Electronal.Chem.,1986,215:40113TurroNJ,ChowMF,ChungCJetal.Anefficient,highconversionhotoinducedemulsionpolyrnerization.Magneticfieldeffectsonpolymerizationefficiencyandpolymermolecularweight.J.Am.Chem.Soc.,1980,102:739314MoriK,TabataY,OshimaK.Effectofmagneticfieldonradiationinducedsolidstatepolymerizationofacetaldenydeatlowtemperatures.工业化学杂志(日本),1970,73:81515AaboubiO,ChopartJP,OlivierAetal.Magneticfieldeffectsonmasstransport.J.Electrochem.Soc.,1990,137:179616ThirskHR,HarrisonA.AGuidetotheStudyofElectrodeKinetics.LondonandNewYork:Academicpress,1972:11517蔡林涛,姚士冰,周绍民.聚苯胺的成核及生长机理.化学学报,待发表.