Abstract
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. K 6P 2Mo 18O 62·14H 2O (P 2Mo 18) assembled CNTP electrode (P 2Mo 18/CNTP) electrode possessed good reversibility and could catalyze the reduction of bromate and iodate in 0.1 M H 2SO 4 solution. Further, the multilayer films of P 2Mo 18 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.
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