电纺论文：纳米纤维修饰电极的制备及其电催化性质研究.doc

电纺论文:纳米纤维修饰电极的制备及其电催化性质研究
【中文摘要】本论文采用静电纺丝技术制备了纳米纤维修饰的氧化铟-氧化锡(ITO)电极,然后在纤维上面修饰不同物质,研究了它们的电化学和电催化行为,具体内容如下:(CS)纳米纤维修饰的ITO电极。首先在电极上面恒电位电沉积聚苯胺(PANI),制备了PANI/CS纳米纤维修饰的ITO电极,该电极对亚硝酸根的催化活性较高,,(信噪比为3)。其次,在有聚苯乙烯磺酸钠(PSS)存在的条件下,在CS纳米纤维修饰的ITO电极上恒电位电沉积PANI,制备了PSS-PANI/CS纳米纤维修饰的ITO电极,研究了该电极在中性条件下的电化学行为,结果显示,掺杂PSS的PANI在中性条件下仍存在氧化
【英文摘要】In this paper, the indium tin oxide (ITO) electrode was modified with chitosan(CS) orcellulose acetate (CA) nanofibers by electrospinning method. After that, different substancessuch as Polyaniline (PANI), P2Mo18, and prussian blue were adsorbed on those eletrodes,. We first made chitosan nanofibers modified electrode by electrospinning was electrodepositied on the modified ITO. The PANI/CS nanofibers modifiedelectrode shows excellent electrocalalytic ablitity towards nitrite. The sensitivity is and the lowest detection limit is
μM (S/N=3). Then we introduced poly(styrenesulfonate) (PSS) into polyaniline via electrochemical polymerization of aniline in thepresence of PSS on CS nanofibers modified electrode. The redox activity of the obtainedPSS-PANI/CS nanofibers modified electrode can be shifted to neutral condition because ofthe assembling of PSS. Moreover, it also shows excellent electrocatalytic ablitity towards sensitivity is and the lowest detection