Skip to main content

In Situ Raman Electrochemical Cell

In Situ Raman Electrochemical Cell is a specialized setup used in Raman spectroscopy to study chemical reactions and processes that occur at electrode surfaces under electrochemical conditions. Raman spectroscopy is a technique used to analyze the vibrational modes of molecules, providing information about molecular structure, composition, and interactions.


In an in situ Raman electrochemical cell, the setup integrates a Raman spectrometer with an electrochemical cell, allowing researchers to monitor changes in molecular composition and structure in real-time as electrochemical reactions take place at the electrode surface. This setup enables detailed insights into the mechanisms of electrochemical reactions, the formation of reaction intermediates, and the behavior of catalysts or electrode materials under working conditions.

Key components of an in situ Raman electrochemical cell typically include:

Electrochemical cell: This includes electrodes (working electrode, reference electrode, and sometimes auxiliary electrode), an electrolyte solution, and a cell housing or chamber.

Raman spectrometer: The spectrometer is used to generate Raman spectra by shining laser light onto the sample and analyzing the scattered light. In an in situ setup, the spectrometer is often coupled with the electrochemical cell, allowing for simultaneous Raman measurements during electrochemical experiments.

Optical components: Optical fibers or other components are used to direct the laser light to the sample and collect the scattered light for analysis.

Electrochemical control system: This system regulates the applied potential or current to the working electrode, allowing researchers to control the electrochemical conditions during the experiment.

By combining electrochemical techniques with Raman spectroscopy, researchers can gain valuable insights into various electrochemical processes, including electrodeposition, battery charging and discharging, corrosion, fuel cell reactions, and electrocatalysis. This approach has applications in materials science, catalysis, energy storage, and environmental science, among other fields.




Popular posts from this blog

What is the CO2RR Gas Diffusion Flow Cell?

The CO2RR Gas Diffusion Flow Cell (CO2RR GDFC) is a type of electrochemical cell used in the conversion of carbon dioxide (CO2) to other chemicals through a process called the CO2 reduction reaction (CO2RR). It is similar in design to the Gas Diffusion Flow Cell (GDFC) used to measure gas permeability, but it is specifically designed to facilitate the electrochemical reduction of CO2. The CO2RR GDFC consists of a small, sealed chamber with two compartments separated by a thin, gas-permeable membrane. One compartment is filled with a CO2-containing gas mixture, while the other compartment contains an electrolyte solution and a catalyst material, such as copper or silver, which facilitates the CO2RR. The two compartments are separated by the gas-permeable membrane, which allows CO2 to diffuse from the high concentration compartment to the low concentration compartment. The CO2RR is driven by an electric potential applied across the two compartments, which induces the reduction of CO2 int

What is the Gas Diffusion Layer (GDL)?

      The GDL is a porous structure made by weaving carbon fibers into a carbon cloth (e.g. GDL-CT and ELAT) or by pressing carbon fibers together into a carbon paper.  Many of the standard GDLs that are produced today come with a Micro Porous layer (MPL) and hydrophobic treatment (PTFE).  The MPL and PTFE help with the contact to the membrane and with water management.  The MPL typically provides a smooth layer with plenty of surface area for catalyst and good contact with the membrane.  The MPL often uses PTFE as a binder that increases hydrophobicity, which helps keep the water within the membrane from escaping – drying out the membrane and causing higher resistance (lower performance).  There is often an additional PTFE coating on the MPL surface to further augment this. What Exactly Does a Gas Diffusion Layer (GDL) Do? GDL essentially acts as an electrode that facilitates diffusion of reactants across the catalyst layered membrane. The surface area and porosity of the GDL is what

How to do when the mercury oxide reference electrode broken?

Q: How to do when the mercury oxide reference electrode broken? A:  If the electrode is broken, please be sure to operate in accordance with the laboratory hazardous chemical treatment method to avoid the diffusion of mercury oxide, which is a toxic material. Description of the mercury oxide reference electrode: The mercury-mercury oxide(Hg/HgO) reference electrode is mainly used in alkaline solutions. It is an electrode composed of metallic mercury and its insoluble salt HgO and 1M KOH solution. Its electrode potential is 0.098V (25°C). The salt bridge of the Hg/HgO reference electrode is made of glass and PTFE, and the size is φ6*70mm. This size can be matched with various types of Dek Research electrochemical cells. Special attention should be paid to maintenance and storage when using the Hg/HgO reference electrode. The substance containing mercury oxide is a toxic substance, and the salt bridge solution is corrosive. Please strictly abide by the relevant laboratory safety regulati