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how to run the impedance EIS test on a potentiostat?

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January 07, 2025
Category Connection: Single Channel Potentiostat
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Tags:
#Potentiostat Device #Corrtest Potentiostat #Potentiostat And Galvanostat
Brief: Learn how to run the impedance EIS test on a potentiostat with the CS350M Electrochemical Impedance Spectroscopy Potentiostat. This video covers the setup, techniques, and applications of EIS in corrosion, energy, and material research.
Related Product Features:
  • High-power, high-precision potentiostat/galvanostat with a max current of ±2A and potential range of ±10V.
  • Electrochemical impedance spectroscopy (EIS) frequency range from 10uHz to 1MHz for detailed analysis.
  • Supports 7 different EIS techniques including Potentiostatic EIS, Galvanostatic EIS, and Mott-Schottky.
  • Built-in equivalent circuit fitting in the software for accurate EIS data modeling.
  • Wide applications in corrosion study, energy conversion, supercapacitors, Li-ion batteries, and electrocatalysis.
  • Compliance voltage of ±21V and current booster options up to 20A/40A for high-power applications.
  • Advanced software features include cyclic voltammetry, Tafel plot analysis, and battery test capabilities.
  • Robust anti-interference ability with internal resistance up to 1013Ω, suitable for high-impedance systems.
Faqs:
  • Why does inductive reactance appear in the high-frequency region of EIS?
    Inductive reactance is caused by the coil and is more noticeable in high-frequency regions and lower resistance systems. To reduce it, shorten electrode cables and avoid nearby coils.
  • Do I need to wait before measuring EIS after building the testing system?
    Yes, ensure the system is stable. Observe OCP (Open Circuit Potential) as a standard. Some systems, like zinc-air batteries, need stabilization time, while others, like electrocatalysis, stabilize quickly.
  • Why is there no semicircle in my EIS test?
    Not all samples show a semicircle. High-frequency regions may show an arc for materials like carbon, while low-frequency regions display diffusion-controlled straight lines.
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