Prussian Blue electrodeposited on MWNTs-PANI hybrid composites for H(2)O(2) detection.
Prussian Blue electrodeposited on MWNTs-PANI hybrid composites for H(2)O(2) detection.
复制标题
DOI：
10.1016/j.talanta.2006.11.001
复制
发表时间：
2007-04
期刊：
影响因子：
6.1
通讯作者：
Y. Zou;Lixian Sun;F. Xu
中科院分区：
文献类型：
--
作者：
Y. Zou;Lixian Sun;F. Xu
采用分步电沉积法在玻碳电极上制备了普鲁士蓝（PB）/聚苯胺（PANI）/多壁碳纳米管（MWNTs）复合膜。该电极在0.0V电位下对H2 O2具有良好的电催化性能和稳定性。优化了MWNTs厚度、PANI电沉积时间和转速对复合修饰电极对H2 O2电流响应的影响，以获得最大的灵敏度。在PB/PANI/MWNTs修饰的GCE上，H2 O2检测的线性范围为8×10− 9 ~ 5×10− 6 M，相关系数为0.997。在信噪比为3时，检测限为5×10− 9 M。据我们所知，这是H2 O2检测的最低检测限。该电极对H2 O2的检测灵敏度（526.43μAμM−1cm−2）比文献报道的高出三个数量级。
A Prussian Blue (PB)/polyaniline (PANI)/multi-walled carbon nanotubes (MWNTs) composite film was fabricated by step-by-step electrodeposition on glassy carbon electrode (GCE). The electrode prepared exhibits enhanced electrocatalytic behavior and good stability for detection of H2O2at an applied potential of 0.0V. The effects of MWNTs thickness, electrodeposition time of PANI and rotating rate on the current response of the composite modified electrode toward H2O2were optimized to obtain the maximal sensitivity. A linear range from 8×10−9to 5×10−6M for H2O2detection has been observed at the PB/PANI/MWNTs modified GCE with a correlation coefficient of 0.997. The detection limit is 5×10−9M on signal-to-noise ratio of 3. To the best of our knowledge, this is the lowest detection limit for H2O2detection. The electrode also shows high sensitivity (526.43μAμM−1cm−2) for H2O2detection which is more than three orders of magnitude higher than the reported.