Infrared Electrochemical ATR System
Product introduction
Infrared electrochemical ATR can obtain the orientation, arrangement, coverage and other state information of the adsorbed species on the electrode surface. It is an effective means to study the electrode process from the molecular level. Among them, the surface enhanced spectrum of attenuated total reflection mode is particularly suitable for real-time detection of the dynamic process on the electrode surface due to its advantages of simple surface selection, strong surface signal, easy mass transfer and small interference by bulk solution. The reaction system introduces three electrodes and a gas interface, which can introduce reaction gases such as CO₂, N₂, etc. into the solution under the condition of applying external bias voltage to realize the optical (electrical) catalytic infrared spectrum characterization.On this basis, the surface enhancement effect is realized by introducing surface plasmon resonance wave by evaporating (or sputtering) gold layer on the surface of monocrystalline silicon to enhance the signal of in situ characterization.
Product parameters and characteristics
●30~80 degrees continuously adjustable to ensure that different electrocatalysts are in the state of maximum luminous flux;
●The reaction tank has good sealing performance and can be filled with reaction gas;
●Si/ZnSe/Ge/ZnS and other crystals are optional and easy to disassemble;
●PTFE and quartz tank body, resistant to chemical corrosion;
●5-port design to meet various application requirements.
ATR crystal type and selection standard | ||
Crystal type | PH | Spectral range(cm-1) |
ZnSe | 5~9 | 800~10000 |
Ge | 1~14 | 800~4000 |
Si | 1~12 | 1000~8000 |
ZnS | 5~9 | 800~10000 |
CaF2 | 5~8 | 1100~7700 |
The applicable PH value of the crystal in the above table is the conventional environment. If the optical(electricity) and other conditions are added in the experiment, it is necessary to gradually test after arrival to obtain the applicable range of preparation.Before the specific experiment, please check whether the crystal reacts with the experimental system. If the reaction occurs, the crystal will be corroded and damaged. It is strictly prohibited to use under this condition.
