Electrochemical Work Station (CH- Instruments, USA):
Technical and Characterization Specifications:
- 2- or 3- or 4-electrode configuration
- Floating (isolated from earth) or earth ground
- Maximum potential: ±10 V
- Maximum current: ±250 mA continuous, ±350 mA peak
- Compliance Voltage: ±13 V
- Potentiostat rise time: < 1 μs, 0.8 μs typical
- Potentiostat bandwidth (-3 dB): 1 MHz
- Applied potential ranges: ±10 mV, ±50 mV, ±100 mV, ±650 mV,
- ±3.276 V, ±6.553 V, ±10 V
- Applied potential resolution: 0.0015% of potential range
- Applied potential accuracy: ±1 mV, ±0.01% of scale
- Applied potential noise: < 10 μV rms
- Measured current range: ±10 pA to ±0.25 A in 12 ranges
- Measured current resolution: 0.0015% of current range, minimum
- 0.3 fA
- Current measurement accuracy: 0.2% if current range >=1e-6 A/V, 1% otherwise
- Input bias current: < 20 pA
- CV and LSV scan rate: 0.000001 to 10,000 V/s
- Potential increment during scan: 0.1 mV @ 1,000 V/s
- CA and CC pulse width: 0.0001 to 1000 sec
- CA and CC minimum sample interval: 1 μs
- True integrator for CC
- DPV and NPV pulse width: 0.001 to 10 sec
- SWV frequency: 1 to 100 kHz
- i-t sample interval: minimum 1 μs
- ACV frequency: 0.1 to 10 kHz
- SHACV frequency: 0.1 to 5 kHz
- FTACV frequency: 0.1 to 50 Hz, simultaneously acquire 1st, 2nd,
- 3rd, 4th, 5th, and 6th harmonics ACV data
- IMP frequency: 0.00001 to 1 MHz
- IMP amplitude: 0.00001 V to 0.7 V rms
Electrometer:
- Reference electrode input impedance: 1e12 ohm
- Reference electrode input bandwidth: 10 MHz
- Reference electrode input bias current: <= 10 pA @ 25°C
Waveform Generation and Data Acquisition:
- Fast waveform update: 10 MHz @ 16-bit
- Fast data acquisition: dual channel 16-bit ADC, 1,000,000
- samples/sec simultaneously
- External signal recording channel at maximum 1 MHz sampling rate
