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Lab Electrochemical Workstation Potentiostat for Laboratory Use

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Lab Electrochemical Workstation Potentiostat for Laboratory Use

Item Number : KT-CHIP

Price varies based on specs and customizations


Constant current range
3 nA – 250 mA
Maximum potential range
±10V
Reference electrode input impedance
1e12 ohms
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Introduction

An electrochemical workstation, also known as a laboratory electrochemical analyzer or electromagnetic detection equipment, is a sophisticated apparatus designed for the study of electrochemical reactions. It typically consists of a working electrode where the reactions of interest occur, a reference electrode for measuring the potential of the working electrode, and an auxiliary electrode to complete the cell circuit. These components enable a range of experiments, including linear sweep voltammetry and step experiments, which are crucial for understanding multi-electron processes, electron transfer kinetics, and reaction mechanisms.

  • Electroanalytical Chemistry: The workstation is essential for conducting linear sweep voltammetry, step experiments, and other electrochemical analyses that help in the study of multi-electron processes, slow electron transfer kinetics, adsorption/desorption steps, and electrochemical reaction mechanisms.
  • Material Science: It is employed to characterize the properties of new materials, especially those intended for use in batteries, fuel cells, and other energy storage devices, by measuring their electrochemical response.
  • Environmental Monitoring: The workstation can be used to develop and test sensors for detecting pollutants in water and air, providing critical data for environmental protection efforts.
  • Biological and Medical Research: It aids in the study of biological molecules, such as proteins and enzymes, by enabling the measurement of their electrochemical properties, which is vital for drug discovery and understanding biological processes.
  • Industrial Quality Control: In manufacturing, the workstation helps in ensuring the quality of products by analyzing the electrochemical behavior of materials used in various applications, from coatings to electronic components.

Detail & Parts

Details of the electrochemical workstationDetails of the electrochemical workstation

Push button switch Simple switch panel

Push button switch

Simple switch panel

Power interface With USB communication cable Fuse 0.4A

Power interface

With USB communication cable

Fuse 0.4A

Cooling fan Electrolytic cell control + signal interface Cooling outlet to prevent overheating of the instrument

Cooling fan

Electrolytic cell control + signal interface

Cooling outlet to prevent overheating of the instrument

Technical parameters

The CHI600E series is a general-purpose electrochemical measurement system. The CHI600E series instruments integrate almost all commonly used electrochemical measurement techniques. In order to meet different application needs and funding conditions, the CHI600E series is divided into multiple models. CHI602E and CHI604E can be used for corrosion research, and CHI660E is a more advanced electrochemical workstation.

Model CHIP600E/CHIP602E/CHIP604E/CHIP610E/CHIP620E/CHIP630E/CHIP650E/CHIP660E
Maximum potential range ±10V
Maximum current ±250mA continuous, ±350mA peak
Cell voltage ±13V
Constant current range 3nA–250mA
Reference electrode input impedance 1e12 ohms
AC impedance 0.00001 ~ 1MHz
Input bias current <20pA
CV and LSV scan speed 0.000001V/s ~ 10,000V/s
Pulse width for CA and CC 0.0001 ~ 1000sec
Minimum sampling interval for CA and CC 1ms

The CHI700E series is a general purpose dual potentiostat that can simultaneously control the potential of two working electrodes in the same electrolytic cell. When the CHI700E series is used as a single potentiostat, its performance is the same as the CHI600E series. If connected to the CHI200B microcurrent amplifier and shielding box, the first channel can measure currents of 1pA or less. The CHI700E can also be connected to the CHI680B high current amplifier to obtain higher currents and cell voltages, but it can only be used for single channel measurements.

Model CHIP700E/CHIP710E/CHIP720E/CHIP730E/CHIP7500E/CHIP760E
Maximum current ±250 mA continuous (sum of both channels), ±350 mA peak
Cell voltage ±13 V
Current range 3 nA – 250 mA
Potentiostat rise time less than 1 ms, typically 0.8 ms
Potentiostat bandwidth (-3 dB) 1 MHz
Reference electrode input impedance 1e12 ohms
CV and LSV scan speed 0.000001 V/s to 10,000 V/s, dual channel simultaneous scan and sampling to 10,000 V/s
Pulse width for CA and CC 0.0001 ~ 1000 sec
Minimum sampling interval for CA 1 ms, dual channel simultaneous
Pulse width for DPV and NPV 0.001 ~ 10 sec
SWV frequency 1 ~ 100 kHz

Advantages 

  • Cost-Effective and Adaptable: These instruments offer a cost-effective solution for electrochemical analysis while being adaptable to various experimental setups and research needs.
  • Open Frame Design: The open frame design of some models enhances manageability and accessibility for maintenance and customization.
  • Three-Electrode System for Precision: The standard three-electrode setup, including a reference electrode, working electrode, and counter electrode, ensures stable and accurate measurements in electrochemical reactions.
  • Influence of Electrode Material and Nanotechnology: The choice of electrode material and surface modifications, along with the integration of nanotechnology, significantly enhances the sensitivity and performance of electrochemical biosensors.
  • Breakthrough in Biosensor-Based Systems: The synergy between nanotechnology and bioelectronics has led to significant advancements in biosensor-based systems, making electrochemical workstations at the forefront of analytical technology.

Application scenarios

Widely used in electrochemical analysis

Liquid chromatography
Liquid chromatography
Flow electrolysis cell
Flow electrolysis cell
Electrochemical detection
Electrochemical detection
Bioanalysis
Bioanalysis

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FAQ

What Is An Electrochemical Workstation And What Does It Do?

An electrochemical workstation, also known as a laboratory electrochemical analyzer, is a specialized piece of equipment used to study and measure electrochemical reactions. It typically includes a working electrode where the reactions occur, a reference electrode to measure the potential, and an auxiliary electrode to complete the circuit. These workstations are essential for research and analysis in fields such as corrosion science, battery development, and electroplating.

What Are The Applications Of Electrolytic Cells?

Electrolytic cells are used in various industrial processes, including electroplating, where a thin layer of metal is deposited onto a conductive surface, and electrowinning, which is the extraction of metals from ores through electrolysis.

Can You Explain The Different Types Of Electrochemical Cells?

Electrochemical cells are divided into several types: - Galvanic or Voltaic cells convert chemical energy into electrical energy and can be rechargeable. - Electrolytic cells are used for decomposition reactions and are not rechargeable. - Fuel cells generate electricity from chemical energy in fuels and require a continuous supply of fuel and oxygen.

Are There Alternative Tools To Electrochemical Workstations For Elemental Analysis?

Yes, alternative tools such as optical emission spectrometry (OES) and laser-induced breakdown spectrometry (LIBS) can perform elemental analysis. However, these techniques may have limitations in analytical capabilities and can leave visible marks on workpieces, unlike benchtop XRF spectroscopy.

What Is The Function Of Auxiliary Electrode?

The auxiliary electrode, also known as the counter electrode, is an electrode used in a three-electrode electrochemical cell for voltammetric analysis or other reactions where an electric current is expected to flow. Its primary function is to provide a pathway for current flow in the electrochemical cell without passing a significant current through the reference electrode. It provides a means of applying input potential to the working electrode. The auxiliary electrode may be isolated from the working electrode to prevent any byproducts generated from contaminating the main test solution. It is often fabricated from electrochemically inert materials such as gold, platinum, or carbon.

What Is A Thermal Element?

A thermal element is a device that converts electrical energy into heat in order to raise the temperature of an object or space. There are several types of thermal elements, including tubular heating elements, radiative heating elements, and combination heating element systems. Heat transfer occurs through thermal resistance and thermal capacitance, and there are three sources of heat: a power source, a temperature source, and fluid flow. Thermal elements are commonly used in laboratory equipment, as well as in various domestic and industrial applications.

What Are The Materials Used In Electrochemical Cell?

The materials used in an electrochemical cell are the anode, cathode, and electrolyte. The anode is the negative electrode that releases electrons to the external circuit and oxidizes during the electrochemical reaction. The cathode is the positive electrode that acquires electrons from the external circuit and is reduced during the electrochemical reaction. The electrolyte is the medium that provides the ion transport mechanism between the cathode and anode of a cell. The desirable properties for anode, cathode, and electrolyte materials include high efficiency, stability, good conductivity, ease of fabrication, and low cost.

What Is The Difference Between Auxiliary And Reference Electrode?

The main difference between auxiliary and reference electrode lies in their function in an electrochemical cell. The auxiliary electrode, also known as the counter electrode, is used to facilitate charge transfer to and from the analyte and pass all the current so that the current at the working electrode can be controlled. On the other hand, the reference electrode is used to reference when measuring and controlling the potential of the working electrode and does not pass any current. The reference electrode has a fixed potential, while the potential of the auxiliary electrode can change.

How Does A Thermal Element Work?

A thermal element works by converting electrical energy into heat through the process of Joule heating. When an electric current flows through the element, it encounters resistance, and this results in heating of the element. Metal and ceramic heating elements operate on the principle of electric resistance heating, generating heat by resisting the flow of electricity through the material. The coefficient of electrical resistance of the material determines its ability to generate heat proportional to the amount of current flowing through it. The generated heat radiates outwards into the heat treatment chamber, making thermal elements a highly effective method of generating heat.

What Are The Examples Of Electrochemical Material?

Examples of electrochemical materials include anode materials for the oxidation of acetic acid, cathode materials for the reduction of acrylonitrile, and electrode materials for the cathodic hydrodimerization of formaldehyde to ethylene glycol. Selectivity for synthetic electrochemical reactions can be determined by the materials used, with electrode materials imparting control and variation of outcomes. The choice of electrode material can also switch reactivity on or off, such as with the cathodic hydrodimerization of formaldehyde only occurring with mercury or carbon cathodes. Understanding the influence of electrode materials can facilitate improved rationalization of differences in achieved yields or selectivity.

What Materials Are Commonly Used For Auxiliary Electrodes?

The choice of materials for auxiliary electrodes depends on the specific electrochemical system and the desired reaction. Common materials for auxiliary electrodes include platinum, graphite, stainless steel, and certain metal alloys. These materials are typically inert and do not participate in the desired electrochemical reaction, ensuring that the auxiliary electrode's role remains solely as a conductor for current flow.

What Are The Advantages Of Using Thermal Elements?

Thermal elements offer several advantages in temperature measurement. Firstly, they have a wide temperature range, allowing for accurate measurements across a broad spectrum, from extremely low temperatures to high temperatures. They also have high sensitivity, meaning they can detect even small temperature changes. Additionally, thermal elements have excellent stability and repeatability, providing reliable and consistent temperature readings over time. They are rugged and durable, making them suitable for use in harsh environments. Thermal elements can also be easily integrated into various systems and instruments for temperature monitoring and control.

How Do Auxiliary Electrodes Affect The Performance Of An Electrochemical Cell?

Auxiliary electrodes play a crucial role in the performance of electrochemical cells. They help maintain a balanced electrical potential, minimizing side reactions or unwanted reactions at the working electrode. The choice of appropriate materials for the auxiliary electrode is essential to prevent contamination or interference with the desired electrochemical process. Additionally, the design and positioning of the auxiliary electrode within the cell can impact overall efficiency and uniformity of current distribution. Proper selection and placement of auxiliary electrodes can enhance the performance, accuracy, and reproducibility of electrochemical measurements or processes.

What Are The Different Types Of Thermal Elements?

There are several types of thermal elements, including thermocouples, resistance temperature detectors (RTDs), and thermistors. Thermocouples are made of two dissimilar metals joined together, and they generate a voltage proportional to the temperature difference between their junctions. RTDs are made of pure metals, such as platinum or copper, and their resistance changes with temperature. Thermistors are made of temperature-sensitive semiconducting materials and have a large change in resistance with temperature.

Why Are Auxiliary Electrodes Necessary In Electrochemical Systems?

Auxiliary electrodes are necessary in electrochemical systems to maintain electrical neutrality and ensure the flow of current. In many electrochemical reactions, the desired reaction occurs at the working electrode, while the auxiliary electrode acts as a counterbalance. It helps to complete the circuit by providing a path for the flow of electrons or ions, thereby allowing the continuous movement of charge and ensuring the overall electrochemical reaction proceeds smoothly and efficiently.

How Should Thermal Elements Be Calibrated And Maintained?

Calibration and maintenance of thermal elements are crucial to ensure their accuracy and reliability. Regular calibration should be performed using certified reference thermometers or temperature standards to verify the accuracy of temperature readings. Calibration intervals may vary depending on the application and industry requirements. Proper storage and handling of the thermal elements are important to prevent damage or contamination. It is recommended to protect the elements from extreme temperatures, moisture, and corrosive substances. Regular inspection of the element's connections, insulation, and protective sheaths should be carried out, and any damage or wear should be addressed promptly. Proper cleaning of the elements, if required, should be done following manufacturer guidelines. It is important to follow the manufacturer's recommendations for maintenance and consult with experts when necessary.

Are There Any Limitations Or Considerations When Using Auxiliary Electrodes?

When using auxiliary electrodes, several limitations and considerations should be taken into account. The choice of materials for the auxiliary electrode is critical to prevent any unwanted reactions or contamination that could affect the desired electrochemical process. Compatibility between the auxiliary electrode and the electrolyte or reactants should be considered to ensure stability and long-term performance. Additionally, the design and positioning of the auxiliary electrode should be carefully optimized to minimize current distribution issues or potential interference with the working electrode. It is also essential to regularly monitor and maintain the auxiliary electrode to prevent degradation or contamination that could impact its performance. Finally, the size and shape of the auxiliary electrode should be considered to ensure compatibility with the specific electrochemical cell or system being used.
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Lab Electrochemical Workstation Potentiostat for Laboratory Use

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