基于定向电沉积的神经电极表面性能

doi:10.16183/j.cnki.jsjtu.2019.11.006

摘要/Abstract

摘要： 采用一种新的定向电沉积方法在铂电极表面获得了具有规律的微观结构，经过电化学性能测试来评价不同试验条件下的电沉积处理效果，并通过超声处理和电脉冲刺激来验证电沉积后电极表面性能的机械和电化学稳定性. 结果表明：所制备的铂电极表面微观结构能够增大电荷吸附的表面积；结晶调整剂氯化铵的加入，使得电极表面微观结构更具规律性，并实现了定向电沉积；相较于无规则电沉积，其双层电容及阴极电荷存储能力分别提高了26.8%、85.7%；当结晶调整剂浓度为4 mol/L，电解液温度为50 ℃时，能达到最佳的性能优化效果.

关键词: 神经电极；电沉积；微观结构；结晶调整剂；电荷存储能力

Abstract: A new oriented electrodeposition method was used to obtain regular microstructure on platinum electrode surface. The treatment effects of electrodeposition with different experimental conditions were evaluated by electrochemical performance tests. Mechanical and electrochemical stability of electrodeposited electrode were respectively verified by ultrasonic treatment and electric pulse stimulation. The results showed that the microstructure obtained on electrode surface could increase the area for charge absorption. Addition of crystal modifier NH4Cl resulted in more regular microstructure on electrode surface. Compared with the irregular electrodeposition, double-layer capacitance and cathodic charge storage capacity of neural electrode were improved respectively by 26.8%, 85.7%. When the concentration of crystal modifier was 4 mol/L, the electrolyte temperature was 50 ℃, the best optimization effect could be achieved.

Key words: neural electrode; electrodeposition; microstructure; crystal modifier; charge storage capacity

中图分类号:

R 318
O 646

于谦，张文光，尹雪乐. 基于定向电沉积的神经电极表面性能[J]. 上海交通大学学报, 2019, 53(11): 1308-1315.

YU Qian,ZHANG Wenguang,YIN Xuele. Surface Properties of Neural Electrodes Based on Oriented Electrodeposition[J]. Journal of Shanghai Jiaotong University, 2019, 53(11): 1308-1315.

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