Corrosion Testing Potentiodynamic Polarization Potentiostat Galvanostat CS350M
Corrosion testing potentiodynamic potentiostat galvanostat CS350M consists of DDS arbitrary function generator, high power potentiostat, galvanostat, dual-channel correlation analyzer, dual-channel high-speed 16bit/high-precision 24bit AD converter and extension interfaces. Max. current is ±2A, potential range is ±10V. EIS frequency range is 10uHz~1MHz. It can be used for various electrochemical fields such as corrosion testing, energy, material and electroanalysis. corrosion testing potentiodynamic potentiostat galvanostat CS350M includes all the techniques commonly employed in corrosion testing, such as Open circuit potential (OCP), EIS, potentiodynamic(Tafel plot),Linear polarization curve (LPR), cyclic polarization curve (CPP), Electrochemical Potentiokinetic Reactivation (EPR, )Electrochemical Noise (ECN), Zero resistance Ammeter (ZRA) etc. Corrtest company originated from Corrtest area and
What is potentiodynamic polarization?
The potentiodynamic (polarization curve) test is an electrochemical technique that involves scanning the potential of the working electrode while measuring the corresponding current density. It is also known as the “Tafel plot” which is the most utilized electrochemical method. In this test, the specimens are usually encapsulated in resin with 1 cm2 exposure to the solution. The corrosion rate is measured by potentiodynamic (polarization curve). The potentiodynamic (polarization curve) is obtained by plotting the potential as a function of current density (I) (or log I) for each measured point. The potentiodynamic polarization curve can be used to calculate the metal's corrosion potential and rate in any given condition (Tafel slope).
Applications of corrosion testing potentiodynamic potentiostat galvanostat CS350M
● Corrosion study and corrosion resistance evaluation of metals; quick evaluation of corrosion inhibitors, coatings, and cathodic protection efficiency
● Study of Energy materials (Li-ion battery, solar cell, fuel cell, supercapacitors), advanced functional materials
● Electrocatalysis (HER, OER, ORR, CO2RR, NRR)
● Electrosynthesis, electroplating/electrodeposition, anode oxidation, electrolysis
Key harware features of corrosion testing potentiodynamic potentiostat galvanostat CS350M
- Built-in EIS/FRA, EIS Frequency range: 10μHz~1MHz
- High bandwidth and high input impedance amplifier
- Built-in FPGA DDS signal synthesizer
- High-power Potentiostat/Galvanostat/ZRA;
- Current control range: ±2A
- Potential control range: ±10V;
- Compliance voltage: ±21V
- Potential resolution: 10μV;
- Current resolution 1pA
Standard supply of corrosion testing potentiodynamic potentiostat galvanostat CS350M
potentiostat galvanostat CS350M CS350M*1
CS studio software *1
Power cable x1
USB cable x1
Cell/electrode cable x2
Dummy cell(1kΩ||100µF) x1
Manual
Application of corrosion testing potentiodynamic potentiostat galvanostat CS350M
Corrosion: corrosion testing potentiodynamic potentiostat galvanostat CS350M includes all the electrochemical techniques for corrosion measurement such as OCP, polarization curve (potentiodynamic), EIS, Cyclic polarization CPP (passivation curve), Electrochemical Potentiokinetic Reactivation (EPR), Hydrogen diffusion test, ZRA, Electrochemical noise, etc. It can be used to study metal corrosion mechanism and corrosion resistance, and evaluate the coating durability and sacrificial anode current efficiency. It can also be used for rapid screening of corrosion inhibitors, fungicides, etc.
Left: Polarization curves of Ti-alloy& stainless steel in 3%NaCl solution
Right: EN of low-carbon steel in 0.05mol/LCl+0.1mol/LNaHCO3
Corrosion testing potentiodynamic potentiostat galvanostat CS350M uses correlation integral algorithm and dual-channel over- sampling technique, and has strong anti-interference ability. The internal resistance of the instrument is up to 1013Ω. It's suitable for EIS measurements of high-impedance system (such as coating, concrete etc)
Salt spray aging test of high impedance coating
Advantages
Full floating
All Corrtest potentiostats / galvanostats incl. corrosion testing potentiodynamic potentiostat galvanostat CS350M are designed as full-floating, and can be used for electrochemical study of working electrode connecting to earth, such as autoclave, metal part in bridge, concrete
Real-time data storage
Experiment data can be stored in real time. Even if the test is interrupted by a power failure, the data will be automatically saved.
EIS
● Corrtest corrosion testing potentiodynamic potentiostat galvanostat CS350M uses correlation integral algorithm and dual-channel over-sampling technique, and has strong anti-interference ability. The internal resistance of the instrument is up to 1013Ω. It's suitable for EIS measurements of high-impedance system (such as coating, concrete etc.)
Multi electrode system
● Corrosion testing potentiodynamic potentiostat galvanostat CS350M supports 2-, 3-, 4-electrode system, can be used to test battery internal resistance or 4-electrode thin film impedance measurement
● With Zero resistance ammeter for galvanic current measurement
Software development kit(SDK)
We can provide secondary development interfaces,API general interfaces and development examples, and can realize data call for Labview, C, C++, C#, VC and other program, which is convenient for secondary development and test methods customization.
Versatile data analysis
CS Studio is the software for corrosion testing potentiodynamic potentiostat galvanostat CS350M for experiment control and data analysis. It can do: multi-parameter Tafel curve fitting, derivation, integration and peak height analysis of voltammetric curve, EIS equivalent circuit customization and impedance spectrum fitting, etc.
● Multi-parameters Polarization curve
● EIS fitting
● Electrochemical noise analysis
● Pseudo capacitance calculation
● GCD specific capacitance, efficiency
● Mott-Schottky plot analysis
● CV analysis
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
Software Features of corrosion testing potentiodynamic potentiostat galvanostat CS350M
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 ECN measurements.
EIS analysis: Bode, Nyquist, Mott-Schottky plot
During EIS data analysis, there is built-in fitting function to draw the custom equivalent circuit.
Techniques of corrosion testing potentiodynamic potentiostat galvanostat CS350M
Stable polarization
- Open Circuit Potential (OCP)
- Potentiostatic (I-T curve)
- Galvanostatic
- Potentiodynamic (Tafel plot)
- Galvanodynamic (DGP)
Corrosion Measurements
- Cyclic polarization curve (CPP)
- Linear polarization curve (LPR)
- Electrochemical Potentiokinetic Reactivation (EPR)
- Electrochemical Noise (EN)
- Zero resistance Ammeter (ZRA)
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.)
Transient Polarization
- Multi Potential Steps
- Multi Current Steps
- Potential Stair-Step (VSTEP)
- Galvanic Stair-Step (ISTEP)
Chrono Method
- Chronopotentiometry (CP)
- Chronoamperametry (CA)
- Chronocaulometry (CC)
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)
- 2nd harmonic AC Voltammetry (SHACV)
- Fourier Transform AC Voltammetry (FTACV)
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)
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.
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Potentiodynamic Potentiostat Galvanostat CS350M For Corrosion Testing Images
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