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虽然,近年来表面增强拉曼散射的研究工作迅猛发展,但是,利用该技术作为电化学重要系统的现场探测则至今没有引起重视。然而,该技术在光谱的和瞬时的分辨以及免除大量溶液干扰中显出独特的优点。最近我们报导了一个简易方法,用这方法可以在金表面制备成宽范围内的电化学吸附物,它具有非常稳定和非常强的表面增强拉曼光谱。这些光谱比在银电极上通常观测到的显示出有更大的稳定性。金表面具有非常宽范围的可极化势能和它的性质提供了应用表面增强拉曼光谱来观测电催化反应机理的新的可能性。
Although the work of surface-enhanced Raman scattering has been developing rapidly in recent years, no attention has been paid to the use of this technique as a field probe for important electrochemical systems. However, this technique shows unique advantages both in spectroscopic and transient resolution and in the elimination of large amounts of solution interference. We recently reported a simple method by which a wide range of electrochemical adsorbents can be prepared on the gold surface with very stable and very strong surface-enhanced Raman spectra. These spectra show greater stability than is usually observed on silver electrodes. The gold surface has a very wide range of polarizable potential energy and its properties provide a new possibility of using surface-enhanced Raman spectroscopy to observe the electrocatalytic reaction mechanism.