High and low temperature electrocatalytic in-situ Raman cell

High and low temperature electrocatalytic in-situ Raman cell is a device that integrates high and low temperature control, electrochemical catalysis, and in-situ Raman spectroscopy analysis techniques.

1、 Working principle:

High and low temperature electrocatalytic in-situ Raman cellThe working principle is based on the Raman scattering effect. When a monochromatic light beam is irradiated onto the sample, most of the light will be elastically scattered, but a small portion of the light will undergo inelastic scattering, namely Raman scattering. The wavelength of Raman scattering light will change due to the vibration or rotation of sample molecules. By analyzing these changes, the chemical composition and structural information of the sample can be obtained. During the electrochemical reaction process, the reactants and products on the electrode surface undergo changes, which can be monitored in real-time through an electrolytic cell.

2、 Main components:

High and low temperature controller: used to precisely control the temperature of the reaction system to meet different experimental needs.

Upper computer software: provides a user-friendly interface for setting experimental parameters such as temperature, current, voltage, etc., and displaying and recording experimental data in real time.

Low temperature unit (water cooler): The cooling function is achieved through water circulation to ensure stable operation of the reaction system within the set low temperature range.

High and low temperature sample stage: used to place and fix the test sample, with excellent thermal conductivity to ensure uniform temperature distribution of the sample.

Chamber: accommodates components such as electrolyte, electrodes, and optical windows, providing a sealed reaction environment to prevent external interference.

3、 Parameters:

1) The device is suitable for three electrode electrocatalytic testing in water systems, with imported glassy carbon as the working electrode, platinum wire, and silver chloride reference electrode;

2) The liquid level thickness of the device can be adjusted, and the liquid can be circulated through a peristaltic pump;

3) The outer diameter of the testing pool is 60mm and the height is 22mm. The diameter of the light window is 20mm;

4) This mold can be extended for Raman imaging research on electrode surfaces;

5) The testing pool is made of PEEK material, which is resistant to acid and alkali organic solvents and high temperatures. The device window adopts an upper cover pressing method and an O-ring sealing method, with good sealing performance;

6) Easy to operate, compact in size, easy to disassemble and assemble, and can be reused;

7) The product window can be selected from high transparency optical quartz glass and sapphire windows;

8) The Raman signal can be modulated by focusing the laser spot. Widely used in major mainstream Raman brands, it does not require instrument modification and is widely applicable to excitation light of various wavelengths.

4、 Temperature control parameters:

1) The heating unit adopts imported resistance wire for direct heating, with a temperature control range from room temperature to 200.0 ° C (can operate for a long time), and a temperature control accuracy of ± 0.5 ℃;

2) The refrigeration unit adopts a low-temperature water cooling system, with a temperature control range from room temperature to -35 ° C and a temperature control accuracy of ± 1 ° C;

3) The temperature sensor is placed on the lower side of the device and can provide accurate feedback on the temperature of the sample area;

4) The external dimensions of the device are 100 * 80 * 30 mm.

5、 Application areas:

High and low temperature electrocatalytic in-situ Raman cellIt has a wide range of applications in materials science, chemical engineering, energy research, and other fields. It can monitor the reaction process on the electrode surface in real-time, providing rich structural and kinetic information, which is helpful for studying the chemical structural changes of electrode materials during electrochemical reactions, as well as exploring new electrochemical reaction mechanisms and material properties.

In summary, it is a powerful and easy-to-use experimental device that is of great significance for promoting research and development in related fields.