摘要
将酞菁铁（FePc）掺入阳离子表面活性剂双十二烷基二甲基溴化铵（DDAB）的氯仿溶液，并涂布于热解石墨电极表面，待氯仿挥发后即制得FePc-DDAB薄膜电极．循环伏安实验表明，在KBr溶液中该薄膜电极有2对还原氧化峰，第1对峰的Epc1=0.64V，Epa1=-0.29V（vs.SCE），第2对峰的Epe2=1.04V，Epa.=-0.94V.着重探讨了第2对峰的电化学行为，估计了该体系的电化学参数电荷传递扩散系数Dct和非均相电极反应速率常数k．将该薄膜电极用于催化卤代乙酸的电化学还原．
Iron phthalocyanine (FePc) - didodecyldimethylammocoum bromide (DDAB) surfactant film electrode could be prepared by coating the mixture of FePc with DDAB chloroform solution on the surface of pyrolytic graphite electrode and then leaving the chloroform evaporated. Cyclic voltammetric experiments showed that, in KBr solution, the Film electrode had two pairs of well -defined and stable reduction and oxidation peaks. For the first pair of peaks, Epcl=-0.64 V, and Epal= -0.29 V (vs.SCE), respectively, while for the second pair,Epc2= -1.04 V, Epa2=-0.94 V respectively. This paper studied the electrochemistry of the second pair emphatically. The electrochemistry of this system was studied and the electrochemical parameters were estimated. The FePc-DDAB film electrode could be used to catalyze electrochemcal reductionof halogenated acetic acide.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第2期216-220,共5页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金!29375192
关键词
酞菁铁
表面活性剂
薄膜电极
催化性能
iron phthalocyanine
surfactant film electrode
electrochemical catalysis
