Potentiostat /galvanostat / electrochemical workstation CS350M is the most advanced single-channel model. It 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. It has more than 40 electrochemical techniques incl. built-in EIS (10μHz~1MHz). Max. current is ±2A, potential range is ±10V. The current can be boosted up to 20A, and compliance voltage can be expanded up to 30V
Application
Study of Energy materials (Li-ion battery, solar cell, fuel cell, supercapacitors), advanced functional materials
Electrosynthesis, electroplating/electrodeposition, anode oxidation, electrolysis
Corrosion study and corrosion resistance evaluation of metals; quick evaluation of corrosion inhibitors, coatings, and cathodic protection efficiency
Electrocatalysis (HER, OER, ORR, CO2RR, NRR)
Standard supply
Instrument host CS350M x1
CS studio software x1
Power cable x1
USB cable x1
Cell cable x2
Dummy cell(1kΩ||100µF) x1
Manual x1
After-sales service
1. Warranty period: 5 years
2. Provide installation guide, manual, software installation video, and training videos.
3. Provide repair service for FREE
4. Lifetime free software upgrading and technical service
| Specifications |
| Support 2-, 3- or 4-electrode system |
Potential and current range: Automatic |
| Potential control range: ±10V |
Current control range: ±2A |
| Potential control accuracy: 0.1%×full range±1mV |
Current control accuracy: 0.1%×full range |
| Potential resolution: 10μV (>100Hz),3μV (<10Hz) |
Current sensitivity:1pA |
| Rise time: <1μS (<10mA), <10μS (<2A) |
Reference electrode input impedance:1012Ω||20pF |
| Current range: 2nA~2A, 10 ranges |
Compliance voltage: ±21V |
| Maximum current output: 2A |
CV and LSV scan rate: 0.001mV~10,000V/s |
| CA and CC pulse width: 0.0001~65,000s |
Current increment during scan: 1mA@1A/ms |
| Potential increment during scan: 0.076mV@1V/ms |
SWV frequency: 0.001~100 kHz |
| DPV and NPV pulse width: 0.0001~1000s |
AD data acquisition:16bit@1 MHz,20bit@1 kHz |
| DA Resolution:16bit, setup time:1μs |
Minimum potential increment in CV: 0.075mV |
| IMP frequency: 10μHz~1MHz |
Low-pass filters: covering 8-decade |
| Operating System: Windows 10/11 |
Interface: USB 2.0 |
| Weight / Measurements: 6.5kg, 36.5 x 30.5 x16 cm |
| EIS (Electrochemical Impedance Spectroscopy) |
| Signal generator |
| Frequency range:10μHz~1MHz |
AC amplitude:1mV~2500mV |
| DC Bias: -10~+10V |
Output impedance: 50Ω |
| Waveform: sine wave, triangular wave and square wave |
Wave distortion: <1% |
| Scanning mode: logarithmic/linear, increase/decrease |
| Signal analyzer |
| Integral time:minimum:10ms or the longest time of a cycle |
Maximum:106 cycles or 105s |
| Measurement delay: 0~105s |
| DC offset compensation |
| Potential automatic compensation range:-10V~+10V |
Current compensation range:-1A~+1A |
| Bandwidth: 8-decade frequency range, automatic and manual setting |
Electrochemical methods/Techniques(Models' comparison)
Model CS350M is the most comprehensive model, includes all electrochemical methods incl. EIS
You can find the comparison of the single-channel models from the following table.
| Techniques |
CS300M
(No EIS) |
CS310M
(with EIS) |
CS350M
(with EIS) |
Stable
polarization |
Open Circuit Potential (OCP) |
√ |
√ |
√ |
| Potentiostatic (I-T curve) |
√ |
√ |
√ |
| Galvanostatic |
√ |
√ |
√ |
| Potentiodynamic(Tafel plot) |
√ |
√ |
√ |
| Galvanodynamic |
√ |
√ |
√ |
| Transient polarization |
Multi-Potential Steps |
√ |
√ |
√ |
| Multi-Current Steps |
√ |
√ |
√ |
| Potential Stair-Step (VSTEP) |
√ |
√ |
√ |
| Galvanic Stair-Step (ISTEP) |
√ |
√ |
√ |
Chrono
methods |
Chronopotentiometry (CP) |
√ |
√ |
√ |
| Chronoamperometry (CA) |
√ |
√ |
√ |
| Chronocoulometry (CC) |
√ |
√ |
√ |
| Voltammetry |
Cyclic Voltammetry (CV) |
√ |
√ |
√ |
| Linear Sweep Voltammetry (LSV)(I-V) |
√ |
√ |
√ |
| 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 A.C.Voltammetry (SHACV) |
√ |
|
√ |
| Amperometry |
Differential Pulse Amperometry (DPA) |
|
|
√ |
| Double Differential Pulse Amperometry (DDPA) |
|
|
√ |
| Triple Pulse Amperometry (TPA) |
|
|
√ |
| Integrated Pulse Amperometric Detection (IPAD) |
|
|
√ |
| 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.) |
|
√ |
√ |
Corrosion
test |
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) |
√ |
√ |
√ |
| Extensions |
Data Logger |
√ |
√ |
√ |
| Bulk electrolysis with Coulometry (BE) |
√ |
√ |
√ |
Technical advantages
1. Impedance (EIS)
CS350M potentiostat galvanostat applies correlation integral algorithm and dual-channel over-sampling technique, and has strong anti-interference ability. It is suitable for EIS measurements of high-impedance system (>109Ω, such as coating, concrete etc.).
EIS of AA6063 Al alloy in Ce3+ containing 3% NaCl solution
2. Polarization curve
Tafel plot can be obtained. The user can set the anodic reversal current (passivation film breakdown current) of the cyclic polarization curve to obtain material's pitting potential and protection potential and evaluate the its susceptibility to intergranular corrosion. The software uses non-linear fitting to analyze polarization curve, and can make fast evaluation of material's anti-corrosion ability and inhibitors.
Polarization curve of Ti-based amorphous alloy & stainless steel in 3%NaCl solution
3. Voltammetry
CS350M includes Linear Sweep Voltammetry(LSV), Cyclic Voltammetry(CV), SCV, SWV, DPV, NPV,ACV, Stripping voltammetry etc. It integrates calculation of peak area, peak current and standard curve analysis.
LSV: mesoporous carbon material in 0.1M KOH
CV of PPy supercapacitor in 0.5 mol/L H2SO4
4. Electrochemical Noise
With high-resistance follower and zero-resistance ammeter, it measures the natural potential/current fluctuations in corrosion system. It can be used to study pitting corrosion, galvanic corrosion, crevice corrosion, and stress corrosion cracking etc. Based on calculation of noise resistance and pitting index, it can complete localized corrosion monitoring.
5. Full floating measurement
Full-floating mode be used for autoclave electrochemical measurements, on-line corrosion monitoring of metallic components under the ground (rebar in concrete, etc.)
6. Second development kit (SDK)
We are able to provide API functions and development examples, which facilitates some users' requirements for secondary development and self-defined measurements. It can be done in Ladview etc.
Software Features
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 and galvanostatic charge and discharge, 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. You can also export data or vector graph of an exact cycle or several cycles.
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.
Battery analysis: charge & discharge efficiency, capacity, specific capacitance, charge & discharge energy.
EIS analysis: Bode, Nyquist, Mott-Schottky plot
During EIS data analysis, there is built-in fitting function to draw the custom equivalent circuit.
CS Studio software can achieve real time saving of the measuring data. The data can be automatically saved even in case of sudden power off.
CS studio kit has a built-in versatile timing policy for combined measurements, which can facilitate the automation of experiments and save time. With the unique function of combination test, you can choose several techniques, and set the wait time, the start time, and the cycles. Choose the experiments you want to run, and click Add. Then you can make auto measurement of the set experiments as you want without having to wait in the lab. This function is especially useful if you have multi experiments to run and save your time greatly.
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