CS300 electrochemical instrument (potentiostat / galvanostat) contains a fast digital function generator, high-speed data acquisition circuitry, a potentiostat and a galvanostat. With high performance in stability and accuracy with advanced hardware and well-functioned software, it is a comprehensive research platform for corrosion, batteries, electrochemical analysis, sensor, life science and environmental chemistry etc.
(1) Reaction mechanism of Electrosynthesis, electrodeposition (electroplating), anodic oxidation, etc.
(2) Electrochemical analysis and sensor;
(3) New energy materials (Li-ion battery, solar cell, fuel cell, supercapacitors), advanced functional materials, photoelectronic materials;
(4) Corrosion study of metals in water, concrete and soil etc;
(5) Fast evaluation of corrosion inhibitor, water stabilizer, coating and cathodic protection efficiency.
Dual-channel high-speed 16bit/high-accuracy 24bit AD converter;
High-bandwidth high input impedance amplifier unit
Built-in FPGA DDS digital signals synthesizer
Potential control range: ±10V; Compliance voltage: ±21V;
Current control range: ±2A ;
Potential resolution: 10μV; current resolution 1pA.
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.
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.
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.
Battery analysis: charge & discharge efficiency, capacity, specific capacitance, charge & discharge energy etc.
1. Polarization curve
CS300 Electrochemical instrument can complete linear polarization curve and Tafel plot measurements. The user can set the anodic reversal current (passivation film breakdown current) of the cyclic polarization curve to determine material's pitting potential and protection potential and evaluate the its susceptibility to intergranular corrosion. The software employs 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(right)
It can do the following electroanalysis methods: Linear Sweep Voltammetry(LSV), Cyclic Voltammetry(CV), Staircase Cyclic Voltammetry(SCV), Square wave voltammetry(SWV), Differential Pulse Voltammetry(DPV), Normal Pulse Voltammetry(NPV), AC voltammetry(ACV), Stripping voltammetry etc. It integrates calculation of peak area, peak current and standard curve analysis.
LSV curve: mesoporous carbon material in 0.1M KOH CV curves of PPy supercapacitor in 0.5 mol/L H2SO4
3. 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. Through noise spectrum, we can evaluate the inducement, growth and death of metastable pitting and crack. Based on calculation of noise resistance and pitting index, it can complete localized corrosion monitoring.
4. Full floating measurementCS300 electrochemical instrument uses full-floating working electrode. It can be used for autoclave electrochemical measurements, on-line corrosion monitoring of metallic components under the ground (rebar in concrete, etc.)5. User-defined methodsCS300 electrochemical instrument supports user-defined combination measurements. The user can set cyclic timing measurements of an electrochemical method or several methods. We are able to provide API functions and development examples, which facilitates some users' requirements for secondary development and self-defined measurements.
Electrochemical noise of low-carbon steel in 0.05mol/L Cl-+0.1mol/L NaHCO3
Software Techniques included in CS300 electrochemical Instruments Stable polarization Open Circuit Potential (OCP), Potentiostatic (I-T measurement), Galvanostatic, Potentiodynamic (Tafel plot), GalvanodynamicTransient polarization Multi-Potential Steps, Multi-Current Steps, Potential Stair-Step (VSTEP), Galvanic Stair-Step (ISTEP)Chrono Methods Chronopotentiometry (CP), Chronoamperometry (CA), Chronocoulometry (CC)VoltammetryCyclic Voltammetry (CV), Linear Sweep Voltammetry (LSV), Staircase Voltammetry (SCV), Differential Pulse Voltammetry (DPV), Normal Pulse Voltammetry (NPV), Square wave voltammetry (SWV), ACvoltammetry (ACV), Differential Normal Pulse Voltammetry (DNPV), 2nd Harmonic A. C. Voltammetry (SHACV), Fourier Transform AC Voltammetry(FTACV)Stripping Voltammetry Potentiostatic stripping, Linear stripping, Staircase stripping, Square wave stripping, Differential Pulse Voltammetry Stripping, Normal Pulse Voltammetry Stripping, Differential Normal Pulse Voltammetry Stripping.Corrosion testingElectrochemical Noise (EN), Zero Resistance Ammeter (ZRA), Electrochemical Potentiokinetic Reactivation(EPR)Battery testingBattery charge and discharge, Galvanostatic charge and dischargeExtensionsData Logger, Electrochemical stripping/deposition, Bulk electrolysis with Coulometry
|Support 2-, 3- or 4-electrode system|
|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|
|Potential and current range: Automatic|
|PC and O/S requirement|
| Interface: USB 2.0||Operating System: |
|Windows 2000/NT/XP/ win7/win8/win10|
|Weight / Measurements|
|Net weight: 6.5kg Gross weight: 10kg|
|Instrument size: 36.5 x 30.5 x16cm; After package: 52.5 x 37.5x 22.5cm|