The Preparation of Ni(OH)_2 /PPyox /CCE Chemical Modified Electrode and the Electrocatalysis for Glucose
JIN Jun;WANG Shu-xiong;YU Hao;JIAN Xuan;ZHENG Xiao-chen;LIU Ran-tong;QI Guang-cai;College of Chemistry and Chemical Engineering,Yan'an University;Yanchang Petroleum Group Pipeline Company;
A Ni( OH)2 / peroxide polypyrrole composite film modified ceramic carbon electrode( Ni( OH) 2 / PPyox / CCE) was fabricated by using electrochemical deposition technique. The electrochemical behavior and electrocatalytic activity for the oxidation of glucose were investigated by cyclic voltammetric and amperometric techniques in 0. 10 mol·L- 1 NaOH solution. The results showed that the resulting modified electrode had high electrocatalytic activity for the oxidation of glucose and anti-interference performance to Vc. Under the optimum conditions,the calibration curve was over the range of 2. 0 ×10- 7to 5. 0 ×10- 5mol·L- 1( r =0.999 7) and 5.0 ×10- 5to 1. 0 ×10- 3mol·L- 1( r =0.999 4) respectively,with sensitivities of 1 017 μA·mM- 1·cm- 2and 733 μA·mM- 1·cm- 2.