将2种二茂铁基表面活性剂(11-二茂铁基)正十一烷基三甲基溴化铵(FTMA)和二(11-二茂铁基)正十一烷基二甲基溴化铵(BFDMA),分别与聚苯乙烯磺酸钠(PSS)进行离子自组装,制备了2种新型的、具有氧化还原活性的复合物PSS-FTMA和PSS-BFDMA,并对制得的PSS-FTMA和PSS-BFDMA进行测试。研究结果表明,复合物处于介晶态,修饰电极的电化学行为都受扩散控制的准可逆过程,PSS-FTMA的电极反应速率为0.69,比PSS-BFDMA电极反应速率0.13要高4.3倍,PSS-FTMA具有较好的电化学性能。
Two new and redox active complexes PSS-FTMA and PSS-BFDMA were prepared via ionic self-assembly of sodium poly(styrenesulfonate)(PSS) and two ferrocenyl surfactant,FTMA and BFDMA,and the prepared samples were tested and analyzed.The research results indicated that the complexes exhibited mesomorphous structures,The electrochemical behavior of modified electrode was a quasi reversible process controlled by diffusion.The electrode reaction rate of PSS-FTMA was 0.69,which was 4.3 times higher than that of PSS-BFDMA.PSS-FTMA had better electrochemical performance.
[1] Andrieux C P,Haas O,Saveant J M.Catalysis of electrochemical reactions at redox-polymer-coated electrodes:mediation of the iron(Ⅲ)/iron(Ⅱ) oxide-reduction by a polyvinylpyridine polymer containing coordinatively attached bisbipyridine chlororuthenium redox centers[J].Journal of the American Chemical Society,1986,108(26):8175-8182.
[2] Barton S C,Kim H H,Binyamin G,et al.Electroreduction of O2 to water on the “Wired” lactase cathode[J].Journal of Physical Chemistry B,2014,105(47):11917-11921.
[3] Barton S C,Kim H H,Binyamin G,et al.The “Wired” lactase cathode:high current density electroreduction of O2 to water at +0.7V (NHE) at pH=5[J].Journal of the American Chemical Society,2001,123(24):5802-5803.
[4] Willner I,Eichen Y,Frank A J,et al.Photoinduced electron-transfer processes using organized redox-functionalized bipyridinium-polyethylenimine-titania colloids and particulate assemblies[J].Journal of Physical Chemistry,1993,97(28):7264-7271.
[5] Gregg B A,Heller A.Cross-linked redox gels containing glucose oxidase for amperometric biosensor applications[J].Analytical Chemistry,1990,62(3):258-63.
[6] Pernaut J M,Reynolds J R.Use of conducting electroactive polymers for drug delivery and sensing of bioactive molecules:a redox chemistry approach[J].Journal of Physical Chemistry B,2000,104(17):4080-4090.
[7] Novak P,Muller K,Santhanam K S V,et al.Electrochemically active polymers for rechargeable batteries[J].Chemical Reviews,1997,28(19):207-282.
[8] Heller A.Miniature biofuel cells[J].Physical Chemistry Chemical Physics,2004,6(2):209-216.
[9] Chen T,Barton S C,Binyamin G,et al.A miniature biofuel cell[J].Journal of the American Chemical Society,2001,123(35):8630-8631.
[10] 单化众,任碧野,二茂铁基聚乙烯亚胺的制备及其电化学行为[J].合成化学,2008,16(2):141-143.
基金资助
2017年广州合材院研究开发基金(KJ06201712406)