Assembly of polyoxometalates on carbon nanotubes paste electrode and its catalytic behaviors.
Carbon nanotubes paste (CNTP) electrode was prepared with multi-walled carbon nanotubes and methyl silicone oil. Polyoxometalates (POMs) were assembled on the electrode surface with different methods, and investigated by cyclic voltammetry and Raman spectroscopy. Experiments showed that POMs/CNTP electrode prepared by direct method had better performance. K6P2Mo18O62 x 14 H2O (P2Mo18) assembled CNTP electrode (P2Mo18/CNTP) electrode possessed good reversibility and could catalyze the reduction of bromate and iodate in 0.1 M H2SO4 solution. Further, the multilayer films of P2Mo18 assembled CNTP electrodes were fabricated by layer-by-layer technique, which showed higher electrocatalytic activities. All these POMs assembled CNTP electrodes prepared exhibited good stability.
Qu
Jianying
J
College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475001, PR China.
Zou
Xiangqin
X
Liu
Baifeng
B
Dong
Shaojun
S