对碳纤维电极进行了热处理,探究其作为水下电场探测电极性能的变化.选择日本东丽公司生产的3K规格的T300碳纤维作为原料,选择445,465和485 ℃ 3个温度在马弗炉中进行热处理,获得获得具有活性的碳纤维电极.利用电化学工作站、低噪声微弱信号放大装置对电极的电化学性能及自噪声水平进行测量分析,讨论了不同温度热处理后电极电位稳定时间、极化性能以及电化学噪声达到最佳性能的速度.结果表明,热处理温度的提高能显著提高电极在海水中的电位稳定性、抗极化性能及电极自噪声稳定速度.为制备出可快速部署使用电场探测电极进行了有益的探索.
The variation of the performance of carbon fiber elect rode in underwater electric field measurement was studied after the carbon firber was heated.The 3 K-T300 carbon fiber was selected as the raw materials and heated by 445,465, 485 ℃ in muffle to get activated carbon fiber electrodes.Using electrochemical station and low-noise low-frequency amplifier to analyze the electrochemical properties and self-noise level of carbon fiber electrode which will use in underwater electric measurement.The changes of carbon fiber in variation of potential, polarization and the time to get full performance were discussed.The result show that the increasing of heat treatment temperature could improve the stability of potential, performance of anti-polarization and reduce the time to get best noise level.All the work may be a useful exploration to prepare the electrodes which could be put in use after deployed in ocean electric field measurement.
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