AFMSRCE Rotating Disc Ring Electrode Device

The AFMSRCE rotating disk ring electrode device is an experimental setup widely used in the field of electrochemistry, mainly for studying electrochemical reaction processes, especially complex reactions involving mass transfer and charge transfer.

The AFMSRCE rotating disk ring electrode device is an experimental setup widely used in the field of electrochemistry, mainly for studying electrochemical reaction processes, especially complex reactions involving mass transfer and charge transfer. The following is a detailed introduction of the device:

1、 Basic structure

The AFMSRCE rotating disc ring electrode device mainly consists of the following parts:

1. Rotating disk electrode: It is usually a disc-shaped electrode material, such as platinum, gold, glassy carbon, etc., that changes the contact state between the electrode and the solution by rotating.

2. Fixed ring electrode: an electrode that surrounds a rotating disk electrode and is used to apply voltage and collect current signals during the reaction process.

3. Drive system: a motor and control system used to drive the rotating disk electrode to rotate, ensuring that the electrode rotates at a stable speed.

4. Electrolyte container: A container for holding electrolyte, usually with a transparent observation window for easy observation of the electrochemical reaction process.

2、 Working principle

During the electrode reaction process of the AFMSRCE rotating disk ring electrode device, when a certain voltage is applied between the ring electrode and the rotating disk electrode, ions in the solution will migrate under the combined action of electric field force and centrifugal force due to the rotation of the rotating disk electrode. This migration promotes the diffusion of reactants towards the electrode surface and the detachment of products from the electrode surface, thereby improving the efficiency of electrochemical reactions.

Specifically, the rotation of the rotating disk electrode can generate laminar flow motion, allowing the solution to form a stable diffusion layer on the electrode surface. The thickness of the diffusion layer varies with the electrode rotation speed, which in turn affects the mass transfer rate of reactants to the electrode surface. By measuring the current on the ring electrode, the migration rate of ions in the solution can be calculated, and the kinetic parameters of the electrode reaction can be obtained.

3、 Characteristics and advantages

1. High precision: It can accurately control the rotation speed and voltage of the electrode, thereby achieving precise control of the electrochemical reaction process.

2. High stability: The device is designed reasonably and can maintain a stable operating state for a long time, ensuring the reliability of experimental results.

3. Good repeatability: Due to the precise control of experimental conditions, the experimental results have good repeatability.

4. Widely applicable: It has broad application prospects in fields such as electrochemical analysis, electrode kinetics research, electrodeposition, and electro synthesis.

4、 Application Fields

1. Electrochemical analysis: used to determine the concentration of various substances in a solution, such as metal ions, organic compounds, etc.

2. Electrode dynamics research: Study the mechanisms and laws of mass transfer and charge transfer during electrode reaction processes.

3. Electrodeposition: Synthesizing metal nanomaterials in an electrolytic cell and controlling their morphology and size.

4. Electrosynthesis: The synthesis of organic compounds or other chemical substances through electrochemical reactions.

　　5、 Technical parameters:

1. Speed: 50-10000rpm, motor power 0.02 horsepower, using silver carbon brush contact connection, display accuracy error: ± 1%,

2. Control: Split control, detachable structure, easy to place in glove box. Equipped with signal input/output interfaces, the speed can be controlled by inputting external signals (from the electrochemical workstation); The speed signal can be output to testing equipment (oscilloscope) or used to control other devices

3. Explosion proof: The latest explosion-proof design ensures personal and equipment safety

4. Rotating rod: length 170mm, outer diameter 15mm, suitable for various electrolytic cells, easy to use with other instruments, and there are also different types of rotating rods for different research purposes

5. Disk electrode: External thread design for better contact and stable signal transmission. Disk electrode diameter: 5.0mm, electrode outer diameter: 15mm. Operating temperature: room temperature with high temperature option available

6. Disk ring electrode: External thread design for better contact and stable signal transmission. There are two materials available, Teflon and PEEK, which are suitable for different applications. Disk ring clearance<=320 μ m. Disk ring size accuracy: 0.01mm. Disk diameter: 5.61mm, ring inner diameter: 6.25mm, ring outer diameter: 7.92mm. Operating temperature: room temperature, with high temperature options available

7. Experimental function: Research and evaluation of hydrogen fuel cell catalysts; Research on lithium air batteries; Electrochemical kinetics research; Research on Oxygen Reduction Reaction (ORR) and Oxygen Evolution Reaction (OER); Evaluation and research of corrosion inhibitors; Research on Corrosion Potential of Metal Materials, CO2 Electrocatalysis.