Gamry fumatech MK 3 conductivity cell
Gamry fumatech MK 3 conductivity cell
The MK 3 simulates typical fuel cell conditions with high accuracy for conductivity measurements using electrochemical impedance spectroscopy in conjunction with the Gamry System Reference 600+ or Interface 1010E.The fumatech MK 3 conductivity measurement cell is designed for measuring the proton conductivity and general ionic conductivity of membrane samples within a temperature range from room temperature up to 200°C, using an additional potentiostat. Measurements can be carried out both under selected humidification conditions and in a dry state. Suitable potentiostats for use with the MK 3 include, for example, the Gamry Reference 600+ potentiostat/galvanostat/ZRA or the Gamry Interface 1010E potentiostat/galvanostat/ZRA.
Product Description
The compact design and the materials used in its manufacture for high chemical, thermal and mechanical resistance make the MK 3 conductivity measuring cell a flexible measuring apparatus for routine measurements in quality assurance as well as for the development and optimisation of new membrane materials in a wide range of applications.
The simple and intuitive operation for the secure attachment of the analysed membrane samples with excellent tightness allows the exact and fast setting of the test conditions with regard to temperature and humidity.
Typical applications of the MK 3 conductivity measuring cell include testing the various operating parameters of polymer electrolyte membranes (PEM) in polymer electrolyte fuel cells (PEMFC) between low-temperature PEMFCs at room temperature up to high-temperature PEMFCs and, with a maximum operating temperature of 200°C, even beyond.
The MK 3 conductivity measuring cell consists of a total of three main components, the water reservoir, the adapter and the sample chamber. These components are equipped with a total of 7 heating elements (50W per heating element) and are divided into 2 heating elements each for the water reservoir and adapter and 3 heating elements each for the sample chamber.
The MK 3 conductivity measuring cell is made entirely of stainless steel (1.4301 or V2A) and the head of the sample chamber in the stainless steel housing is equipped with a Teflon body and a total of four embedded platinum electrodes (Kelvin contacting) for so-called “in-plane” measurements. Due to the materials used, the MK 3 conductivity measuring cell can also be used in strongly alkaline or strongly acidic ambient conditions, e.g. when testing membranes doped with phosphoric acid.
The additional potentiostat is connected to the sample chamber via BNC connections and enables a frequency range of 10 µHz – 2 MHz (Gamry System Interface 1010E) or 10 µHz – 5 MHz (Gamry System Reference 600+), see 5773 Technical Note Waveform Genration – Frequency Resolution.
The sample geometry of the planar membrane samples should ideally be 15 mm wide and 40 mm long for the dimensions of the MK 3 conductivity measuring cell and for ideal contacting of all four platinum electrodes with even coverage.
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Specifications
SYSTEM fumatech® MK 3Housing material: Stainless steel (1.4301)
Sample chamber material: Teflon / Stainless steel (1.4301)
Measurement method: 4-point contact (in-plane)
Electrode material: Platinum (Pt)
Application: Proton and ion conductivity measurement cell
Dimensions: Sample chamber 15 mm (W) x 40 mm (L)
Heating elements: 7 heating elements (50 W each)
Frequency range: EIS measurements (with Reference 600+ potentiostat/galvanostat/ZRA) 10 µHz – 5 MHz
Frequency range: EIS measurements (with Interface 1010 potentiostat/galvanostat/ZRA) 10 µHz – 2 MHz
Max. AC current or AC voltage: (with Reference 600+ potentiostat/galvanostat/ZRA) 600 mA or 3 V rms
Max. AC current or AC voltage: (with Interface 1010 potentiostat/galvanostat/ZRA) 1 A or 2.33 V rms
Options and Accessories
• Interface 1000 Potentiostat/Galvanostat/ZRA
• Interface 1010 Potentiostat/Galvanostat/ZRA
• Reference 600 Potentiostat/Galvanostat/ZRA
• Reference 600+ Potentiostat/Galvanostat/ZRA
Applications
– Basics of Electrochemical Impedance Spectroscopy [Link AN 5657]
– Equivalent Circuit Modelling in EIS [Link AN 5658]
– Comparison of Corrosion Rates Calculated by EFM, LPR and EIS [Link AN 5660]
– Tsujikawa-Hisamatsu-Electrochemical (THE) Method for Crevice Corrosion Repassivation Potentials [Link AN 5671]
– Basics of Electrochemical Corrosion Measurements [Link AN 5677]
– EIS Measurement of a Very Low Impedance Lithium Ion Battery [Link AN 5682]
– Steps for Creating an Application Using GamryCOM [Link AN 5687]
– Electrochemical Impedance at a Rotating Disk Electrode [Link AN 5695]
– Measuring the Impedance of Your Reference Electrode [Link AN 5697]
– Testing Super-Capacitors: Part 1 – CV, EIS and Leakage Current [Link AN 5710]
– Demystifying Transmission Lines: What are they? Why are they useful? [Link AN 5711]
– Basics of a Quartz Crystal Microbalance [Link AN 5717]
– OptiEIS™ – A Multisine Implementation [Link AN 5718]
– Testing Supercapacitors: Part 2 – CCD and Stacks [Link AN 5724]
– Calibration of an Au-coated Quartz Crystal [Link AN 5727]
– EQCM Investigations of a Thin Polymer Film [Link AN 5728]
– Measuring Surface-Related Currents using Digital Staircase Voltammetry [Link AN 5731]
– Testing Supercapacitors: Part 3 – Electrochemical Impedance Spectroscopy [Link AN 5732]
– Monitoring Layer-by-Layer Assembly of Polyelectrolyte Film using a Quartz Crystal Microbalance [Link AN 5736]
– Characterisation of a Supercapacitor using an Electrochemical Quartz Crystal Microbalance [Link AN 5737]
– Spectroelectrochemistry – Part 1: Getting started [Link AN 5739]
– Spectroelectrochemistry – Part 2: Experiments and Data evaluation [Link AN 5740]
– Raman Spectroelectrochemistry [Link AN 5741]
– How Cabling and Signal Amplitudes Affect EIS Results [Link AN 5747]
– Testing Lithium-Ion Batteries [Link AN 5748]
– Dye Solar Cells – Part 1: Basic principles and measurements [Link AN 5749]
– The Art of Electrochemistry in an Autoclave [Link AN 5751]
– Dye Solar Cells – Part 2: Impedance measurement [Link AN 5752]
– Measuring Batteries using the Right Setup: Dual-cell CR2032 and 18650 Battery Holder [Link AN 5753]
– Getting Started With Your First Experiment: DC105 Corrosion Techniques – Polarisation Resistance [Link AN 5754]
– Getting Started With Your First Experiment: EIS300 Electrochemical Impedance Techniques – Potentiostatic Electrochemical Impedance Spectroscopy [Link AN 5755]
– Dye Solar Cells – Part 3: IMPS and IMVS measurements [Link AN 5756]
– The Implementation of Transmission Lines Using Generalised Circuit Blocks [Link AN 5757]
– Use of Transmission Lines for Electrochemical Impedance Spectroscopy [Link AN 5758]
– A Snapshot of Electrochemical Impedance Spectroscopy [Link AN 5759]
– Determination of the correct value of Cdl from the impedance results fitted by commercially available software [Link AN 5760]
– EIS of Organic Coatings and Paints [Link AN 5763]
