Electrochemical Applications of Internal Reflection Spectroscopy
Electrochemical applications become possible by employing an optically transparent electrode, often called optically transparent thin layer electrode (OTTLE), embedded between the internal reflection element (IRE) and the sample layer being studied. This conventional electronic input-output management becomes useless if it is desired to write a protocol of all experimental parameters directly. To control the cell temperature, the angle of incidence, the applied voltage, the concentration, and additional entities under real-time measurement conditions, a more flexible control unit similar to a free programmable hard- ware/software system is required. Electrochemical cell construction enables one to measure Fourier transform infrared spectra with simultaneous operation of a reference beam for monitoring of all wavelengths with sensitivity and nearly in real time. Also, in earlier work the electrode installed in an electrochemical cell had no degree of freedom for mechanical movement.