暂态电化学分析技术由于可以提供与时间相关的电极过程动力学信息，在电化学研究中应用广泛。本文着重介绍了在正弦电流/电压激励下电化学系统的时频响应特性，其非线性频响行为的谱学表达、数值模拟方法以及实验表征方法，综述了非线性谱学分析技术在电化学研究中的应用。文中指出基于反应机理的谱学模拟与实验表征结果的对比是当前开展电化学非线性谱学研究的主要模式，总结出其在实验测量中交流振幅的选取原则，并在最后提出电化学系统的非线性主要源于反应动力学，非线性谱学分析因此在电化学反应的机理研究以及电化学系统诊断的许多方面独具优势。
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