Corrosion Measurement Single Channel Potentiostat Cyclic Voltammetry CS350M

Potentiostat cyclic voltammetry CS350M

Potentiostat cyclic voltammetry CS350M is the most advanced model among Corrtest single-channel potentiostat/galvanostat. It has all the techniques including EIS. Potentiostat cyclic voltammetry CS350M contains a fast digital function generator, high-speed data acquisition circuitry, a potentiostat and a galvanostat, and EIS /FRA module. Potentiostat cyclic voltammetry CS350M is widely used in various applications such as corrosion measurement, the carbon dioxide reduction, the electrocatalysis, battery testing, biosensor, etc. Potentiostat cyclic voltammetry CS350M includes EIS. Cyclic voltammetry is the most basic but key technique, all our Corrtest potentiostat/galvanostat has this function.

Cyclic voltammetry setup

A Cyclic voltammetry(CV) setup consists of several parts. The experiment is carried out in an electrochemical cell, which is a glass vessel that can hold the inserted electrodes, without any risk of the electrodes ever touching each other and causing a short.The cell has a three electrode setup. The first is the working electrode (WE) which is the electrode where the relevant electrochemical processes will happen. WE is usually made of an inert material like glassy carbon, platinum and gold with a high polish and a limited surface area. The reference electrode (RE) provides us with a potential based on a chemical reaction that is always happening at a very defined potential. Popular choices are saturated calomel and Ag/AgCl electrode.The counter electrode (CE) is meant to complete the circuit. CE is generally made of an inert material and should have a bigger surface area compared with the WE. Popular choices are platinum wires / Pt plate/Pt mesh, graphite rods etc.

What is Cyclic voltammetry?

Cyclic voltammetry (CV) is an electrochemical widely used to study the redox properties of a chemical species and characterize new electrochemical systems by changing the potential of the cell within certain limits and record the resulting current response. It gives information about the electron transfer processes that occur during oxidation and reduction reactions. Cyclic voltammetry is widely employed in various fields, including analytical chemistry, materials science, and electrochemistry.

Cyclic voltammetry is a versatile technique that can be used for qualitative and quantitative analysis, as well as mechanistic investigations. It provides insights into the kinetics of electron transfer processes and is widely employed in the development and characterization of electrochemical systems and materials.

Cyclic voltammetry Applications

Cyclic voltammetry is a versatile method for scientific investigation because most processes involve electron transfer, which makes them be able to be studied by this technique. Its uses cover characterization, synthesis, mechanisms, and analysis. In all applications, cyclic voltammetry can work well with a large variety of compounds including organic, inorganic, polymer, films, and semiconductors and so on. Furthermore, the method operates satisfactorily whether in a direct or an indirect approach.As an analytical tool, it plays an important role electrochemistry.

Specifications of Potentiostat cyclic voltammetry CS350M

Techniques of potentiostat cyclic voltammetry CS350M

Voltammetry

• Linear Sweep Voltammetry (LSV)
• Cylic Voltammetry (CV)
• Staircase Voltammetry (SCV) #
• Square Wave Voltammetry (SWV) #
• Differential Pulse Voltammetry (DPV) #
• Normal Pulse Voltammetry (NPV) #
• Differential Normal Pulse Voltammetry (DNPV) #
• AC Voltammetry (ACV)
• 2^nd harmonic AC Voltammetry (SHACV)
• Fourier Transform AC Voltammetry (FTACV)

Corrosion Measurements

• Cyclic polarization curve (CPP)
• Linear polarization curve (LPR)
• Electrochemical Potentiokinetic Reactivation (EPR)
• Electrochemical Noise (EN)
• Zero resistance Ammeter (ZRA)

Battery test

• Battery Charge and Discharge
• Galvanostatic Charge and Discharge (GCD)
• Potentiostatic Charging and Discharging(PCD)
• Potentiostatic Intermittent Titration Technique (PITT)
• Galvanostatic Intermittent Titration Technique (GITT)

Electrochemical Impedance Spectroscopy (EIS)

• Potentiostatic EIS (Nyquist, Bode)
• Galvanostatic EIS
• Potentiostatic EIS (Optional freq.)
• Galvanostatic EIS(Optional freq.)
• Mott-Schottky
• Potentiostatic EIS vs. Time (Single freq.)
• Galvanostatic EIS vs. Time (Single freq.)

Stable polarization

• Open Circuit Potential (OCP)
• Potentiostatic (I-T curve)
• Galvanostatic
• Potentiodynamic (Tafel plot)
• Galvanodynamic (DGP)

Transient Polarization

• Multi Potential Steps
• Multi Current Steps
• Potential Stair-Step (VSTEP)
• Galvanic Stair-Step (ISTEP)

Chrono Method

• Chronopotentiometry (CP)
• Chronoamperametry (CA)
• Chronocaulometry (CC)

Amperometric

• Differential Pulse Amperometry (DPA)
• Double Differential Pulse Amperometry (DDPA)
• Triple Pulse Amperometry (TPA)
• Integrated Pulse Amperometric Detection (IPAD)

Extensions

• Electrochemical Stripping/ Deposition
• Bulk Eletrolysis with Coulometry (BE)
• Rs Measurement

# There is the corresponding stripping method.

Software features of potentiostat cyclic voltammetry CS350M

Cyclic voltammetry(CV): CS studio software provides users a versatile smoothing/differential/ integration kit, which can complete the calculation of peak height, peak area and peak potential of CV curves. In Cyclic voltammetry (CV) technique, during the data analysis, there is function of selecting exact cycle(s) to show. You can choose to see a cycle or some cycles as you want.

Battery Test and analysis: charge & discharge efficiency, capacity, specific capacitance, charge & discharge energy.

Tafel plot and corrosion rate

CS studio also provides powerful non-linear fitting on Butler-Volmer equation of polarization curve. It can calculate Tafel slope, corrosion current density, limitation current, polarization resistance, corrosion rate. It can also calculate the power spectrum density, noise resistance and noise spectrum resistance based on the electrochemical noise measurements.

Combination test: CS studio software supports the combination test for various experiments to achieve flexible and unattended test. You can set the parameters for each experiment in advance, and set the intervals, wait time etc between each experiment.

Combination Test: corrosion tests

Combination Test: Pseudo capacitor tests

CorrTest Instruments Co. (China) manufactured her first full-digital potentiostat/galvanostat for corrosion electrochemistry in 1995. After 29 years of research and development, CorrTest has developed a series of electrochemical workstations dedicated to electroanalysis, corrosion, electrocatalysis, energy material research, sensors, electrodeposition etc. CorrTest has registered CorrTest^® trademark and acquired a number of patents, software copyrights.

CorrTest has also developed different kinds of corrosion sensors and meters, corrosion management networks for on-site corrosion monitoring and risk evaluation of oilfields, petrochemicals, construction and offshore wind farms.

“Quality from Technology", "Progess from Profession" is our motto for research and development. CorrTest will continue to provide customers with high-quality products and professional services.

1995：1^st electrochemical potentiostat was made based on AD&DA multifunction board

2007：CorrTest was officially established with 1^st generation CS350 potentiostat designed

2015：2^nd generation CS350G potentiostat with the achievement of 1MHz impedance

2016：Listed on China’s New OTC market and embarked on 1^st generation corrosion meters

2017：3^rd generation CS350H potentiostat, specializing in EIS for high-impedance coating

2021：4^th generation, CS350M and CS310X multichannel products

2023：5^th generation, CS2020B high-power booster to enhance CS350M output current