Wuhan Corrtest Instruments Corp., Ltd.
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RRDE 2-channel potentiostat CS2350M bipotentiostat with EIS in one channel has two sets of built-in independent potentiostat /galvanostat. It means that you’ll have 2 sets potentiostat/galvanostat(single-channel) in one instrument. For CS2350M bipotentiostat with EIS in one channel, one channel provides full electrochemical techniques including EIS, the other channel provides all but EIS technique.The bipotentiostat can conduct RRDE and Hydrogen diffusion Test. Besides, better than many other bipotentiostat in the market, experiment can be conducted simultaneously in each channel. RRDE 2-channel potentiostat CS2350M bipotentiostat with EIS in one channel is the real double-channel potentiostat. It uses Ethernet connection. EIS module is included in one channel. Full floating module and electrical isolation design guarantee each channel is totally independent, which ensures accurate data. We also supply CS2350M with EIS in both channels. Please not that for RDE testing there is only one working electrode(disk), no need a bipotentiostat(2-channel potentiostat), a single-channel potentiostat is sufficient.
Photo of RRDE 2-channel potentiostat CS2350M bipotentiostat with EIS in one channel
channel potentiostat CS2350M bipotentiostat has 2 sets single-channel potentiostat in the instrument. It can do all that a single-channel potentiostat can do.
(1) Electrosythesis, electrodeposition (electroplating), anodic oxidation, electrolysis
(2) Electrocatalysis such as Oxygen reduction reaction (ORR), OER, HER, CO2 reduction.
(3) Li-ion battery, solar cell, fuel cell, supercapacitor, advanced function materials, sensor, etc
(4) Corrosion behavior of metals, and anti-corrosion evaluation
(5) Fast evaluation of inhibitor, water quality stabilizer, coating, and cathodic protection efficiency.
Typical application of 2-channel potentiostat CS2350M bipotentiostat:
Rotating Ring-Disk Electrode (RRDE)
Oxidation/reduction reaction (ORR) study: while measuring the polarization curve of disk electrode in the main channel, apply a constant polarization potential on the ring electrode, and thus detect the intermediate products on the disk electrode. RRDE test becomes the typical method for ORR study. CS2350M can be connected to any RRDE equipment.
RRDE technique in Corrtest CS studio software
Diagram of 2-channel potentiostat CS2350M bipotentiostat connecting to RRDE rotator
Please note that our Corrtest 2-channel potentiostat CS2350M bipotentiostat is compatible to any brand RRDE rotator. When doing the RRDE test, if a bipotentiostat is used, the test can be done directly by the technique “RRDE”. If two sets single-channel potentiostat are used, instead of a set 2-channel potentiostat CS2350M bipotentiostat, you should choose “floating” mode for both sets single channel potentiostat to avoid interference between the potentiostats.
Techniques of RRDE 2-channel potentiostat CS2350M with EIS in one channel
| Techniques | channel#1 | channel #2 | |
| Bipotentiostat | · Hydrogen Diffusion Test (HDT) | ● | ● |
| · Rotating Ring Disk Electrode(RRDE) | ● | ● | |
| · Faradaic efficiencyTest(FE) | ● | ● | |
| Stable polarization | Open Circuit Potential (OCP) | ● | ● |
| Potentiostatic (i-t curve) | ● | ● | |
| Galvanostatic(E-t curve) | ● | ● | |
| Potentiodynamic(Tafel) | ● | ● | |
| 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 curve) | ● | ● | |
| 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) | ● | ● | |
| 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) | ● | ● | |
| EIS /Impedance | 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) | ● | ● |
| potentiodynamic(Tafel ) | ● | ● | |
| Linear polarization curve (LPR) | ● | ● | |
| Electrochemical Potentiokinetic Reactivation | ● | ● | |
| Electrochemical Noise (ECN) | ● | ● | |
| Zero resistance Ammeter (ZRA) | ● | ● | |
| Amperometry | Differential Pulse Amperometry (DPA) | ● | ● |
| Double Differential Pulse Amperometry (DDPA) | ● | ● | |
| Triple Pulse Amperometry (TPA) | ● | ● | |
| Integrated Pulse Amperometric Detection (IPAD) | ● | ● | |
Specifications of RRDE 2-channel potentiostat CS2350M with EIS in one channel
| Specifications | |
| Support 2-, 3- or 4-electrode system | Interface: Ethernet |
| Potential control range: Primary Channel: ±10V second Channel: ±10V | Current control range: ±1A in each channel |
| 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: ±1A in each channel | 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 |
| Potential and current range: Automatic | Weight / Measurements: 6.5kg,36 x 30 x16cm |
| Operating System: Windows 10/11 | |
| Electrochemical Impedance Spectroscopy (EIS) | |
| 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 | |
Q: Can your 2-channel potentiostat CS2350M bipotentiostat with EIS in one channel be upgraded into 2* EIS version?
A: Yes. If you have CS2350M bipotentiostat with EIS in one channel, you can upgrade it and add EIS for the one without EIS. We will do it online.
Q: Is your Corrtest 2-channel potentiostat CS2350M bipotentiostat compatible to other RRDE rotator?
A: Yes. Our bipotentiostat is compatible to any brand RRDE rotator, because it’s all about connecting the RRDE electrodes with the electrode cables.
Q: What’s the standard supply for a set of 2-channel potentiostat CS2350M bipotentiostat with EIS in one channel?
Standard supply for BiPotentiostat / BiGalvanostat CS2350M:
Instrument CS2350M x1
CS st
Cell cable x 4
Dummy cell (1kudio software x1
Power cable x1,
Ethernet cable x1,Ω||100µF) x2
Manual
A: Usually we deliver goods within 2 weeks after payment is received. The goods are delivered by express such as DHL, FedExetc.
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.