Scribner Associates extends its groundbreaking line of tabletop fuel cell testing equipment with the 885 Fuel Cell Potentiostat. The 885 bolts directly to SAI's 850e Multi-Range Fuel Cell Test Systems or 890e / 890C / 890ZV Fuel Cell Test Loads (different form-factors), offering an easy, efficient testing platform that delivers. Streamline your testing while delivering real results with Scribner Associates' fuel cell test systems.
✓ Perform Automated Experiments within FuelCell®
✓ No Need to Swap Cell Leads to Use Potentiostat Functions
✓ Voltammetry for In-Situ Fuel Crossover & Electrochemical Surface Area
✓ Potentiostatic Mode for Electrode and Catalyst Support Durability Test
✓ Fine Current Resolution for High Accuracy Tafel Experiments
✓ Quick & Easy Installation
✓ Data Analysis with FCView
Features:
• Integrated Potentiostat for 850 Series Fuel Cell Test Systems / 890 Series Fuel Cell Test Loads
• 3 Current Ranges for Maximum Flexibility and Current Accuracy
• Sweep Function for CV and LSV Measurements
• Automated Switching between Load and Potentiostat Operation
• Combine with the 850 Auto Multigas Unit for Automated Gas Input Switching
Specifications:
Cell Connections 2, 3 or 4 terminal
Working Electrode
Current Ranges 2 A, 200 mA, 20 mA
Resolution 122 µA (2 A FS) to
1.22 µA (20 mA FS)
Counter Electrode
Output Voltage vs. WE ±3 V
Current ±2 A
(short circuit protected)
Reference Electrode
Type Differential w/ driven shields
Input V range -3 to +3 V
Differential Input -3 to +3 V
Resolution 152 µV
Capacitance 150 pF
Limit of Error 0.3% of reading + 3 mV
DC Polarization
Voltage Range -3 V to +3 V
Limit of Error 0.25 %
Resolution 125 µV
Sweep Functions
Scan Rates 1 mV/sec to 1 V/sec
Data Acquisition Speed 10 points/sec
Figure 1: PEM fuel cell hydrogen crossover acquired by linear sweep voltammetry using Scribner’s 885 Fuel Cell Potentiostat (red) and a commercial potentiostat (black). The small dip in current near 0.4 VRE is a feature of the fuel cell. Test conditions given in figure.
Figure 2: PEM fuel cell cyclic voltammetry data using Scribner’s 885 Fuel Cell Potentiostat (red) and a commercial potentiostat (black). Cyclic voltammetry is used for in-situ electrochemical active surface area characterization of PEM fuel cell electrodes. Conditions given in figure.
