摘要
To explore the possibility of the functionalization of polypyrrole （PPy）, we prepared a polypyrrole film-modified dectrode containing colloidal cupric hexacyanoferrate （CuHCF） by making use of the characterization of negatively charged colloidal particles. CuHCF was obtained by mixing CuSO<sub>4</sub> and K<sub>4</sub>Fe（CN）<sub>6</sub> solutions in a molar ratio of 2: 1. The sediment was washed with water for 4 times, then dispersed ultrasonically in
基金
Project supported by the National Natural Science Foundation of China
