论文部分内容阅读
在偏二甲肼(UDMH)的氧化中使用普鲁士蓝(DB)作为合适的电子转移调节剂,利用Ti O2纳米管特殊的物理和化学性质,以Ti O2纳米管为普鲁士蓝载体,将制备的PB-Ti O2纳米管复合材料修饰玻碳电极,以玻碳电极作为工作电极,可以很好的应用在UDMH的电催化氧化上。通过SEM观察复合材料的外表特征,利用循环伏安技术,观察PB-TNTs/GCE的电化学行为和UDM H在工作电极上的电化学响应,评估PB-T NT s/GCE对UDM H溶液浓度测定的可靠性。结果表明,PB作为促进UDMH氧化的催化剂,Ti O2作为普鲁士蓝的载体,分析检测UDMH溶液时修饰玻碳电极将展现良好的稳定性,利用电流测定法得出线性范围为0.2×10-3~60×10-3g/L,检测限为2.4×10-5g/L。
In the oxidation of UDMH, Prussian blue (DB) was used as a suitable electron transfer regulator. Taking advantage of the special physical and chemical properties of TiO 2 nanotubes, TiO 2 nanotubes were used as Prussian blue carrier. PB-Ti O2 nanotube composite modified glassy carbon electrode, with glassy carbon electrode as the working electrode, can be well applied to the electrocatalytic oxidation of UDMH. The electrochemical characteristics of PB-TNTs / GCE and the electrochemical response of UDM H at the working electrode were observed by cyclic voltammetry using SEM, and the effects of PB-T NT s / GCE on the concentration of UDM H solution Determination of reliability. The results showed that PB as catalyst for UDMH oxidation and Ti O2 as Prussian blue carrier could improve the stability of glassy carbon electrode modified with UDMH. The linear range was 0.2 × 10-3 ~ 60 × 10-3g / L, the detection limit of 2.4 × 10-5g / L.