Corrosion Measurement EIS Potentiostat And Galvanostat CS350M

Corrosion Measurement EIS Potentiostat CS350M

EIS potentiostat /galvanostat model 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, energy, material and electroanalysis. The current can be boosted up to 20A/40A with a current booster CS2020B/ CS2040B. Model CS350M EIS potentiostat /galvanostat includes over 40 electrochemical techniques, including OCP, EIS, LPR, CPP, Tafel, polarization curve, which are widely used for corrosion measurement.

Applications

● Corrosion study and corrosion resistance evaluation of metals; quick evaluation of corrosion inhibitors, coatings, and cathodic protection efficiency

CS350M EIS potentiostat/galvanostat is a comprehensive model with all electrochemical methods, it can also be used in following fields and others.

● 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

Techniques - Potentiostat CS350M

    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)

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)

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.)

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

Corrosion measurement

CS350M potentiostat galvanostat 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.

Polarization curves of Ti-alloy& stainless steel in 3%NaCl solution

ECN of low-carbon steel in 0.05mol/LCl+0.1mol/LNaHCO3

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 potentiostat galvanostat 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

For Corrtest potentiostat, the data can be stored in real time. Even if the test is interrupted by a power failure, the data will be automatically saved. 

Electrochemical impedance spectroscopy EIS

● Corrtest potentiostat 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.)

● With constant current carrier and DC bias technology, Corrtest potentiostat can be used for battery impedance measurement under charge and discharge state, suitable for ultra-low resistance system (such as 18650 battery, soft pack battery, battery core...)

Multi electrode system

● Support 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.

High current, high compliance options

●With the CS2020B/CS2040B booster, the current can be boosted to 20A/40A, which meets the requirement in fuel cell, power battery, electroplating, etc

●Can customize the instrument to be 30V high compliance voltage, which meets the test requirement in low-conductivity solutions (organic system, concrete system etc), especially suitable for carbon and nitrogen reduction study.

Versatile data analysis

CS Studio is the software for Corrtest potentiostat 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.

Eg: in below picture, the user set a program for corrosion measurement. 

Combination Test: corrosion measurements

Software Features

Cyclic voltammetry: 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 CV technique, during the data analysis, there is function of selecting exact cycle(s) to show.

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.

FAQs

Q: Can I install and view the software without connecting Corrtest potentiostat before purchase?

A: Yes. Our standard software has demo mode. We can send the software to you and you can run it and see how it works, even without a potentiostat.

Q: What is the standard supply of CS350M potentiostat galvanostat?

A: Instrument host CS350M x1,CS studio software x1, Power cable x1, USB cable x1, Electrode cable x2, Dummy cell x1, Manual

Q: For corrosion measurement, can you recommend some accessories?

A: Yes. We also supply all kinds of electrodes and cells; for corrosion measurement, you can choose CS930 glass cell, CS900 saturated calomel reference electrode, CS910 Pt counter electrode, CS921 metal working electrode, CS946 specimen holder, etc.

Q: I am new to corrosion measurement and I did’t use Corrtest potentiostat before. Can I get some training after we purchase?

A: Yes. Along with the potentiostat, we provide detailed manual& training videos. We can also arrange online training on how to use the potentiostat. Even if you’re new on corrosion field, don’t worry, we’re able to give advice and guidance, as we have professional technical team, all with electrochemistry and corrosion background (master or doctor degree).

Q: How about the after-sales service?

A: 1. Warranty period: 5 years. All technical service incl. repair is TOTALLY FREE.

2. Provide installation guidance and manual, software installation video.

3. Lifetime free software upgrading of the same model and technical service

Q: Since my country has the different electricity voltage /frequency than China, is CS350M potentiostat compatible to power system of our country?

A: Yes. As long as we know your destination, we will make sure the Corrtets potentiostat is compatible to local facilities, the voltage, frequency(Hz), the language, the plug… You can just plug in and use it directly without concerns.