Wuhan Corrtest Instruments Corp., Ltd.
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Single Channel Potentiostat Galvanostat
Single channel potentiostat galvanostat 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. Single channel potentiostat galvanostat can be used for various electrochemical fields such as corrosion, energy, material and electroanalysis. The current can be boosted up to 20A/40A when a Single channel potentiostat galvanostat is connected with a current booster CS2020B/ CS2040B. There are 3 models among single channel potentiostat galvanostat. CS350M is the most advanced single channel potentiostat galvanostat with EIS. Model CS310M also includes EIS but has less voltammetry technique. Model CS300M is the entry single channel potentiostat galvanostat model without EIS.
Applications of Single channel potentiostat galvanostat
Corrosion: Corrtest Single channel 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.
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
Single channel potentiostat galvanostat 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
Energy
With techniques LSV, CV, galvanostatic charge and discharge (GCD), Constant potential/ current EIS, and precise IR compensation circuit, Corrtest Single channel potentiostats galvanostatsare widely used in supercapacitor, Li-ion batteries, sodium-ion batteries, fuel cell, Li-S batteries, solar cell, solid-state batteries, flow batteries, metal-air batteries etc. It is an excellent scientific tool for researchers in the fields of energy and materials.
CV curve of PPy supercapacitor in 0.5 mol/L H2SO4 solution
Electroanalysis
Corrtest Single channel potentiostat galvanostat includes all the voltammetric methods such as NPV, DNPV, SWV, ACV, and can be used for fast analysis of the trace elements in the solution. Voltammetry stripping methods can do the Quantitative analysis according to the stripping peak current.
Stripping voltametric curves in solution of different Pb2+, Cd 2+,Zn2+ concentration
Electro-catalysis
● Corrtest Single channel potentiostat galvanostat
can measure the half-wave potential (ORR), overpotential (HER, OER) of the catalyst, and has the function of peak power density and energy density calculation.
● Long-term cyclic measurement for ORR, OER, HER,
CO2RR by techniques such as cyclic voltammetry,
potentiostatic, galvanostatic. Faraday efficiency can be
measured with a bipotentiostat.
LSV curve of catalysts in alkaline solution
● Maximum current can be 20A /40A and compliance voltage can be 30V, and with IR compensation technique,
Corrtest potentiostat can precisely measure the overpotential of the electrode, which is a big advantage in electrocatalysis field.
| Specifications of Single channel potentiostat galvanostat | |
| 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 | |
Techniques of Single channel potentiostat galvanostat
| Single channel potentiostat galvanostat models | 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) # | √ | √ | ||
| 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 measurement | 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) | √ | √ | √ | |
| Amperometry | Differential Pulse Amperometry (DPA) | √ | √ | |
| Double Differential Pulse Amperometry (DDPA) | √ | √ | ||
| Triple Pulse Amperometry (TPA) | √ | √ | ||
| Integrated Pulse Amperometric Detection (IPAD) | √ | √ | ||
Q: Can I install and view the software without connecting Corrtest Single channel potentiostat galvanostat before purchase?
A: During pre-sales communication, we have customers who want to see our CS studio software before deciding to purchase. We can send the software package for your installation, and then please follow the steps to use the demo mode without connection a Corrtest Single channel potentiostat galvanostat.
A: You can use the dummy cell(we provide 1 pcs dummy cell along with the single channel potentiostat galvanostat) to judge whether the potentiostat works normally. The dummy cell is a simulation standard cell. You can do the potentiostatic, galavanostatic experiment and check the value of the potential and current. They should obey the Ohm law.
A: Usually we deliver single channel potentiostat galvanostat within 7 working days. The single channel potentiostat galvanostat is delivered by express such as DHL, FedEx etc.
After-sales Service (all the service, repair is totally free)
Warranty period: 5 years.
Provide installation guide, manual, software installation video & training videos.
Free repair service
Lifetime software upgrading and technical service.