摘要
运用循环伏安法在光谱纯石墨电极上制备了亚甲紫聚合膜修饰电极．在酸性、中性和碱性溶液中，亚甲紫单体均能在电极上进行电化学聚合得到性能稳定的亚甲紫聚合膜．研究了实验条件对膜生长过程的影响和亚甲紫聚合膜修饰电极的电化学行为，并讨论了该修饰电极对亚硝酸根的电催化还原作用．结果表明：亚硝酸根在亚甲紫聚合膜修饰电极上具有很好的电流响应，催化峰电流与亚硝酸根的浓度在1．0×10－5～3．0×10－3mol／L范围内呈良好的线性关系．
A stable poly (methylene violet) chemically modified electrode was prepared on the spectrum-pure graphite electrode by using cyclic voltammetry. The monomer of methy-lene violet could be polymerized on the electrode surface. The effects of various experimental conditions were discussed as for the polymerization process and the electrochemical behaviour of film was investigated in detail. The results exhibited that this film could be used for the electrocatalytic reduction of nitrite. Meanwhile, this electrode also showed a good linear cur-rent response for the NO2- in the range from 1.0×10-5 to 3.0×10-3 mol/L.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第6期864-868,共5页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
亚硝酸根
电化学
聚合
亚甲紫
化学修饰电极
Electrochemically polymerization, Nitrite, Chemically modified electrode,Methylene violet, Graphite electrode
