Understanding PEM Water Electrolysis in 1 Minute

PEM Water Electrolysis Technology

During PEM electrolysis operation, water molecules undergo oxidation at the anode, producing oxygen, protons, and electrons. The protons migrate through the proton exchange membrane to the cathode, where they combine with electrons to form hydrogen.

Working Principle:

  • Anode Reaction: 2H₂O → O₂ + 4H⁺ + 4e⁻
  • Cathode Reaction: 4H⁺ + 4e⁻ → 2H₂
  • Overall Reaction: 2H₂O → 2H₂ + O₂

Technical Advantages:

  • Quick start-up and load response capability
  • High hydrogen purity (up to 99.999%)
  • Compact system design
  • Environmentally friendly with no harmful emissions

The application of this technology will greatly promote the development of the hydrogen energy industry and provide strong support for achieving carbon neutrality goals.

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