Hardware parameters
Potentiostat
● Zero resistance galvanometer
● 2,3,4 electrode structure
● Floating ground wire or field.
● Maximum potential range: ±10V
● Maximum current: ±250mA continuous, ±350mA peak.
● Cell pressure: ±13V Rise time of potentiostat: less than 1μs, usually 0.8 μs.
● Bandwidth of potentiostat (-3 dB): 1MHz
● Applied potential range: 10mv, 50mv, 100mv, 650mv, 3.276v, 6.553v, 10v.
● Resolution of applied potential: 0.0015% of potential range.
● Accuracy of applied potential: ±1 mV, 0.01% of full scale.
● Applied potential noise: < 10μV rms.
● Measuring current range: ±10pA to 0.25 A, 12 ranges.
● Measurement current resolution: 0.0015% of current range, with a minimum of 0.3fA.
● Accuracy of current measurement: 0.2% for current sensitivity greater than or equal to 1e-6A/V, and 1% for other ranges.
● Input bias current: < 20pA
Constant current meter (CHI660F)
● Constant current range: 3nA-250mA
● Accuracy of applied current: ±20pA, 0.2% when current is > 3e-7A, and 1% in other ranges.
● Resolution of applied current: 0.03% of current range.
● Measuring potential range: 0.025v, 0.1V, 0.25v, 1V, 2.5v, 10V.
● Resolution of measuring potential: 0.0015% of measuring range.
Potentiometer
● Reference electrode input impedance: le12 ohms
● Input bandwidth of reference electrode: 10 MHz
● Reference electrode input bias current: < =10 p A @ 25℃
Waveform generation and data acquisition system
● Fast signal generation and update rate: 10mhz, with 16-bit resolution.
● Fast data acquisition system: 16-bit resolution ADC, dual-channel synchronous sampling, sampling rate of 2.5M MHz.
● Maximum sampling rate of external signal recording channel: 1MHz.
● The function of scanning electrochemical microscope can be expanded.
Experimental parameters
● CV and LSV scanning speed: 0.000001V/s to 10,000 V/s.
● Potential increment during scanning: 0.1mV (when scanning speed is 1,000V/s)
● Pulse width of CA and CC: 0.0001 to 1000sec.
● Minimum sampling interval of CA and CC: 0.4 μs
● CC analog integrator
● Pulse width of DPV and NPV: 0.001 to 10sec.
● SWV frequency: 1 to 100kHz
● Minimum sampling interval of I-T: 0.4 μs
● ACV frequency range: 0.1 to 10kHz.
● SHACV frequency range: 0.1 to 5kHz
● FTACV frequency range: 0.1 to 50Hz, and ACV data of fundamental wave, second harmonic, third harmonic, fourth harmonic, fifth harmonic and sixth harmonic can be obtained at the same time.
● AC impedance: 0.00001 to 3MHz
● AC impedance waveform amplitude: 0.00001V to 0.7V rms.
Other characteristics
● Automatic or manual iR drop compensation (positive feedback and current interruption method)
● Current measurement bias: full scale, 16-bit resolution, 0.003% accuracy.
● Potential measurement bias: ±10V,16-bit resolution, 0.003% accuracy.
● External potential input
● Analog output of potential and current
● Cut-off frequency of controllable potential filter:
1.5MHz,150KHz,15KHz,1.5KHz,150Hz,15Hz,1.5Hz,0.15Hz
● Cut-off frequency of controllable signal filter:
1.5MHz,150KHz,15KHz,1.5KHz,150Hz,15Hz,1.5Hz,0.15Hz
● Rotating electrode control voltage output (models above CHI630F):
0-10000rpm for 0-10000 rpm, with 16-bit resolution and 0-10V% accuracy, requires some rotating electrode devices to work.
● Digital input and output lines can be controlled by macro commands.
Low flash memory can quickly update the program.
● USB port data communication
● Electrolytic cell control: introducing nitrogen, stirring and tapping (special electrolytic cell system is required).
● CV digital simulator and fitter. User-defined reaction mechanism (above CHI630F) or predefined reaction mechanism (other models)
● AC impedance simulator and fitter (models with AC impedance measurement function)
● Maximum data length: 256K-16384K optional.
● Instrument size: 37 cm (w) ×23 cm (d) ×12 cm (h)
Function |
600F |
602F |
604F |
610F |
620F |
630F |
650F |
660F |
Cyclic voltammetry(CV) |
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Linear sweep voltammetry(LSV)# |
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Staircase voltammetry(SCV)# |
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Tafel picture(TAFEL) |
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chronoamperometry(CA) |
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Chrono Coulometry(CC) |
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Differential pulse voltammetry(DPV)# |
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Normal Pulse Voltammetry(NPV)# |
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The difference of conventional pulse voltammetry(DNPV)# |
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Square wave voltammetry(SWV)# |
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Ac voltammetry (including the phase sensitive)(ACV)# |
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Second harmonic ac voltammetry (phase sensitive) (SHACV)# |
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Fourier transform AC voltamme-try(FTACV) |
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Current - time curve(i-t) |
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Differential pulse current detection(DPA) |
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Double differential pulse current detection(DDPA) |
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Three pulse current detection (TPA) |
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Integral pulse current detection(IPAD) |
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bulk electrolysis with coulometry(BE) |
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Hydrodynamic modulation voltammetry(HMV) |
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Scan - step hybrid method(SSF) |
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More electricity rates jump method(STEP) |
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Constant potential intermittent titration (PITT) |
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Ac impedance measurement(IMP) |
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Ac impedance - time measurement(IMPT) |
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Ac impedance - potential measurement(IMPE) |
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chronopotentiometry(CP) |
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The current scanning timing potential method(CPCR) |
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Many current step method(ISTEP) |
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Potentiometric stripping analysis(PSA) |
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Electrochemical noise measurements(ECN) |
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The open circuit voltage - time curve(OCPT) |
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Constant current meter |
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RDE control (0 to 10 v output) |
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Any reaction mechanism CV simulator |
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The default reaction mechanism CV simulator |
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Ac impedance digital simulator and fitting procedures |
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