Ashley K
Department of Chemistry, San Jose State University, San Jose, California 95192, U.S.A.
Talanta. 1991 Nov;38(11):1209-18. doi: 10.1016/0039-9140(91)80094-g.
Infrared (IR) spectroelectrochemical techniques have seen extensive use in studies of electrode surface processes. They have also been employed, albeit less frequently, to investigations of redox species dissolved in solution. The application of IR spectroscopy to electrochemical solution processes represents a special challenge, for absorption of IR radiation by the solvent is a significant interference to detection of vibrational modes of dissolved analytes. It is also difficult to maintain potentiostatic control of the system in specially designed thin-layer spectroelectrochemical cells. Solution IR spectroelectrochemical experiments are important for investigations of redox systems in which it is desired to spectroscopically monitor the structures of dissolved products, intermediates and reactants involved in electrode reactions. Such experiments have been conducted on biochemical, inorganic, organic, and other systems. In this paper some examples of applications of IR spectroelectrochemical studies of solution species in the above areas are presented, and experimental aspects are discussed.
红外（IR）光谱电化学技术在电极表面过程的研究中得到了广泛应用。它们也被用于（尽管频率较低）对溶解在溶液中的氧化还原物种的研究。将红外光谱应用于电化学溶液过程是一项特殊的挑战，因为溶剂对红外辐射的吸收会严重干扰对溶解分析物振动模式的检测。在专门设计的薄层光谱电化学池中维持系统的恒电位控制也很困难。溶液红外光谱电化学实验对于研究氧化还原系统很重要，在这些系统中，希望通过光谱监测电极反应中涉及的溶解产物、中间体和反应物的结构。此类实验已在生物化学、无机、有机及其他系统中进行。本文介绍了上述领域中溶液物种红外光谱电化学研究的一些应用实例，并讨论了实验方面的问题。
