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gaohaiyan(½ð±Ò+15,VIP+0):²»´í£¬¶àл£¡ 2-18 09:41
gaohaiyan(½ð±Ò+15,VIP+0):²»´í£¬¶àл£¡ 2-18 09:41
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Fixing B using A under the UV condition will produce A/B electrode. The direct electron transportation of B in this electrode was investigated in this paper. The experimental results demonstrated that the effective and stable electron transportation of B could present on the surface of this electrode without any medias. At 60 mV/s, redox peaks of electron transportation of B are Epa=-0.212V and Epc=-0.440V with the volume of potential of E0=-0.326V. At 50¡«800 mV/s, reduction peaks current and oxidation peaks current displayed well linear correlation with ¦Ô1 /2, respectively, which indicated the electrode reaction process was determined by a diffusion process. After continuous scanning 100 times, the peak current kept almost constant. At least 91% value of voltammetric response was remained after 30 days at the temperature of 4¡æ The operation life of this electrode was very long due to the strong adhesion of PUA on glassy carbon electrodes. This electrode exhibited electrocatalysis behavior for H2O2, and the catalytic current increased with the concentration of H2O2 |
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