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用伏安法初步研究了激光照射下金电极 /溶液界面的电子转移行为。对Fe3+/Fe2 +,激光照射引起氧化还原峰增高并向阳极方向移动 ,氧化还原电位负向变化 ,激光功率对电流 -电位曲线的平移幅度具有明显影响。激光照射对抗坏血酸的电子转移作用更显著 ,电流峰高增加了 2 0 2倍 ,过电位减小了 0 2 5V。激光能量对电极表面的作用及界面溶液层的影响加速了电子转移并提高了电极反应的灵敏度。
The voltammetry was used to study the electron transfer behavior at the gold electrode / solution interface under laser irradiation. For Fe3 + / Fe2 +, the laser induced redox peaks increased and moved toward the anode, the redox potential changed negatively, and the laser power had a significant effect on the current-potential curve. The effect of laser irradiation on the electron transfer of ascorbic acid was more remarkable, the peak current increased by 200 times and the overpotential decreased by 0 2 5V. The effect of laser energy on the electrode surface and the effect of the interface solution layer accelerate the electron transfer and increase the sensitivity of the electrode reaction.