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y风里雨里

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[交流] 关于初始电位与终止电位变化对自腐蚀电位的影响 已有1人参与

本人刚入门电化学,做实验发现初始电位与终止电位设置的不同测量出的自腐蚀电位不同,如初始电位-1V、终止电位1V、扫描速度0.5mV/s,测量出的自腐蚀电位为-1V。  第二次初始电位-0.5V、终止电位0.5V、扫描速度0.5mV/s,测出的自腐蚀电位为-0.8V。 两次开路电位都稳定在-0.7V。有人能帮忙解释一下吗?
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