Department of Chemistry, University of Warwick, CV4 7AL, Coventry, United Kingdom.
Phys Chem Chem Phys. 2011 Mar 28;13(12):5223-6. doi: 10.1039/c0cp02804e. Epub 2011 Feb 3.
Optically transparent ultramicroelectrodes (OT-UMEs) comprising carbon nanotube (CNT) networks on quartz, are introduced and used to monitor quantitatively the interfacial concentration of tris(2,2'-bipyridine)ruthenium(II) during cyclic voltammetry. The OT-CNT-UMEs combine the attractive properties of small-scale electrodes, e.g., high diffusion rates and good signal-to-noise, with the ability to probe electrochemical processes optically, from the rear of the electrode. This enables optical measurements of the solution, close to the electrode surface, without significant interference from absorption or scattering processes.
介绍了由石英上的碳纳米管（CNT）网络组成的光学透明超微电极（OT-UMEs），并将其用于在循环伏安法过程中定量监测三（2,2'-联吡啶）钌（II）的界面浓度。OT-CNT-UMEs 将小尺寸电极的高扩散率和良好的信噪比等吸引人的特性与从电极背面进行光学探测电化学过程的能力相结合。这使得可以在不受到吸收或散射过程显着干扰的情况下，对靠近电极表面的溶液进行光学测量。
