American pine rotating ring electrode device

The American pine rotating ring electrode device is one of the key tools in electrochemical measurement. This device plays an important role in the field of electrochemical research through its design and working principle.

1、 Construction and Composition

It mainly consists of the following parts:

1. Rotating disk: usually made of inert materials such as platinum, gold, glassy carbon, etc., with a diameter generally between 5-10 centimeters. These materials have good electrochemical stability and conductivity.

2. Ring electrode: an electrode used in conjunction with a rotating disk, typically made of metal materials such as platinum or gold. The circular electrode and the rotating disk are on the same plane, separated by an insulating material.

3. Power and control system: used to provide current and control the speed of the rotating disk. The power supply ensures the progress of electrochemical reactions, while the control system ensures that the rotating disk rotates at a constant speed.

In addition, it also includes some auxiliary components, such as electrolyte solution containers, stirring devices, etc., to ensure the smooth progress of the experimental process.

2、 Working principle

The basic part of the American pine rotating ring electrode device is a potentiostat, which is controlled by software to measure various electrochemical techniques. The software is controlled by a computer and does not require any front panel input. Mainly used in constant potential polarization experiments, the instrument measures potential current through functions such as digital signal generator and data acquisition system. By analyzing measurement data, study the electrochemical properties of electrochemical related systems. During specific operation, the instrument outputs potential signals according to certain rules and synchronously records the current response signals of the system; Or vice versa, output current signal and synchronously record potential signal. The collected signals are analyzed by the built-in microprocessor of the instrument and converted into digital signals, which are then fed back to the computer. What appears on the screen at this time is the raw data. The instrument data processing software installed on the computer has * parsing function, which can make more detailed changes and analysis of the raw data, and obtain detailed information about the research system.

3、 Application Fields

It has a wide range of applications in electrochemical research, including but not limited to the following aspects:

1. Electrochemical kinetics research: used to study the kinetic parameters of electrochemical reactions, such as exchange current, electron transfer rate, etc.

2. Interface electrochemical research: Study the interface characteristics of electrochemical reactions, such as rate constants of electrochemical reactions, interface mass transfer, etc.

3. Research on electrode reaction mechanism: By changing the rotational speed of the rotating disk and the composition of the electrolyte solution, the process and properties of electrochemical reactions can be controlled and regulated, thereby studying the intermediate products and mechanisms of electrode reactions.

4. Preparation of electrochemical sensors: By modifying specific sensitive materials on the surface of a rotating disk or a circular electrode, sensitive detection of specific molecules or ions can be achieved.

5. Electro organic synthesis: In the field of electrochemical synthesis, it can be used to control reaction conditions and optimize reaction pathways.

4、 Technical features

Has the following technical characteristics:

1. Simple structure: composed of a rotating disk, circular electrode, power supply, and control system, easy to operate and maintain.

2. High experimental controllability: By controlling the rotational speed of the rotating disk and the composition of the electrolyte solution, the conditions of the electrochemical reaction can be controlled.

3. Accurate measurement: It can accurately measure parameters such as current and potential of electrochemical reactions under constant rotational speed and fluid dynamics conditions.

4. Widely applicable: It has important applications in fields such as electrochemical kinetics, interface electrochemistry, electrode reaction mechanism research, and electrochemical sensor preparation.

5、 Main technical parameters:

Power requirements: 24.0 VDC (± 5%), 5A (low voltage DC equipment)

Power adapter: 100 to 240 VAC, 1.4 to 0.7 A, 50 to 60 Hz

Environmental temperature: 10 ℃ to 40 ℃

Maximum applied voltage: ± 15 V

Maximum applied current: ± 1 A

Applicable current operating range: ± 100 pA to ± 1 A

Current range: 8 levels (from ± 100 nA to ± 1 A)

AC impedance frequency range: 10 μ Hz-1 MHz

Frequency accuracy: ± 10 ppm

Bandwidth (3 dB):>15 MHz

Instrument dimensions:

160 × 324 × 255 mm

(6.3 × 12.75 × 10.0 in)

Weight:

4.6 kg (10.2 lb)

In summary, the rotating ring disk electrode device is one of the important tools in electrochemical research.