How To Build A PEM Hydrogen Generator

How To Build A PEM Hydrogen Generator

This article will teach you in detail how to build a PEM hydrogen generator.Learn how to create your own PEM electrolyzer at home with this comprehensive guide. Follow these step-by-step instructions to build an efficient and eco-friendly hydrogen generator.
Here is a video and text of making a PEM electrolyser.Of course, there is an easier way to get a PEM hydrogen generator.
Do you want to know the difference between pem hydrogen generator and alkaline hydrogen generator?

Prepare required parts

  • 1. Aluminum alloy plate
  • 2. Insulated gasket 
  • 3. Titanium alloy positive and negative electrode plate
  • 4. Titanium mesh
  • 5. Silicone gasket
  • 6. Microplate
  • 7. Imported DuPont N117 PEM 
  • 8. Screw  
  • 9. Gasket  
  • 10. Nut  
  • 11. Gas pipe connector
How To Build A PEM Hydrogen Generator

How to build a PEM hydrogen generator

  1. Prepare required parts.

  2. Select an aluminum alloy plate as the down-pressing board.

  3. Insert the prepared screws.

  4. Install the insulated gasket.

    Install the insulated gasket

    Pay attention to the position of water inlet and air outlet.

  5. Install titanium alloy positive and negative electrode plates.

  6. Install the sealing silicone gasket.

  7. Install titanium mesh.

    Install titanium mesh

    1.Titanium mesh shall be placed in the order of high 、medium、 small density.
    2.Place them neatly.

  8. Install the microplate.

    Install the microplate.

    Align the titanium mesh when placing.

  9. Install DuPont N117 PEM.

    Install DuPont N117 PEM

    The PEM shall be installed carefully to avoid damage.

  10. Install the microplate.

  11. Install the studio sealing silicone gasket.

  12. Install titanium mesh.

    Install titanium mesh

    1.Titanium mesh shall be placed in the order of high 、medium、 small density.
    2.Align the microplate when placing.

  13. Install titanium alloy positive and negative electrode plates.

  14. Install the sealing silicone gasket.

  15. Install the second titanium mesh.

    Install the second titanium mesh

    Titanium mesh shall be placed in the order of high 、medium、 small density.

  16. Install the microplate.

  17. Install DuPont N117 PEM.

  18. Install the microplate.

  19. Install the sealing silicone gasket.

  20. Install titanium mesh.

  21. Install titanium alloy positive and negative electrode plates.

  22. Install insulated gasket.

  23. Install aluminum alloy plate.

  24. Install gasket and nut.

  25. Tighten the screws.

    Tighten the screws

    Base on the standard compactness and torsion.

  26. Install the air pipe connector and tighten.

    nstall the air pipe connector and tighten

    water inlet, hydrogen outlet and oxygen outlet shall be distinguished.

  27. Installation completed.

  28. Test after assembly.

  29. Check whether there is resistance and whether there is short circuit between electrode and pressing plate.

    Test after assembly

    Test is normal

  30. Go on power on test

  31. Connect to water pump

  32. Connect the air pipe

  33. Connect to output bus

  34. The output bus plug is connected to the transformer.

  35. The control transfer line connector is connected to the transformer.

  36. The signal line connector is connected to the transformer.

  37. The input bus plug is connected to the transformer.

  38. Connect the water level sensor line of the control transfer line to the tank.

  39. Connect the water pump line controlling the transfer line to the water pump.

  40. Unscrew the upper cover of water gas separator.

  41. Pour in purified water.

  42. Turn on the switch.

  43. During inspection.

    Whether hydrogen and oxygen are normal

    1. Whether hydrogen and oxygen are normal(hydrogen outlet) (oxygen outlet).
    2. Check whether the voltage and current are normal.
    3. Check for water leakage.

  44. If there is no problem in the test, installation is completed.

Understanding PEM Hydrogen Generators

Introduction to PEM (Polymer Electrolyte Membrane) hydrogen generators PEM hydrogen generators, also known as PEM electrolyzers, use a solid polymer electrolyte (PEM) to produce hydrogen through the process of water electrolysis. By applying an electric current, water molecules are split into hydrogen and oxygen, which can then be collected and used as fuel or for other applications. PEM electrolyzers have gained popularity due to their high efficiency, safety, and ability to produce pure hydrogen.

The role of PEM electrolyzers in hydrogen production PEM electrolyzers play a crucial role in hydrogen production, particularly in the context of renewable energy systems. They offer a sustainable way to produce hydrogen using electricity from solar panels, wind turbines, or other renewable sources, which can then be stored and utilized as needed. This helps to address the issue of intermittent renewable energy supply and enables the production of hydrogen with a low carbon footprint.

Benefits of using PEM technology compared to traditional methods PEM technology offers several advantages over traditional electrolysis methods, such as alkaline electrolyzers, including:

  • Higher efficiency: PEM electrolyzers can achieve higher energy conversion efficiencies compared to alkaline electrolyzers.
  • Faster response time: PEM electrolyzers can ramp up and down quickly, making them well-suited for use with intermittent renewable energy sources.
  • Greater purity: PEM electrolyzers produce hydrogen with higher purity levels, which is crucial for certain applications, such as fuel cells.
  • Compact design: Due to their solid polymer electrolyte, PEM electrolyzers can be designed to be more compact and lightweight compared to their alkaline counterparts.

Choosing the right PEM membrane, such as the DuPont N117 membrane Selecting the appropriate PEM membrane is essential for achieving optimal performance and longevity in your hydrogen generator. One popular choice is the DuPont N117 membrane, which offers a balance of durability, proton conductivity, and gas barrier properties. Other factors to consider when choosing a PEM membrane include cost, availability, and compatibility with the other components of your electrolyzer system.

Troubleshooting and Optimizing Your PEM Electrolyzer

Identifying common issues Some common issues with PEM electrolyzers may include membrane degradation, electrode corrosion, gas leaks, and insufficient hydrogen production. Regularly inspect the electrolyzer components for signs of wear or damage and address any issues promptly to maintain optimal performance.

Optimizing efficiency To optimize the efficiency of your PEM electrolyzer, ensure that the membrane, electrodes, and bipolar plates are clean and free of contaminants. Regularly check the power supply and control systems to ensure they are functioning correctly and providing the appropriate current and voltage to the electrolyzer cell.

Maintaining safety Ensure that your PEM electrolyzer is properly ventilated to prevent the buildup of hydrogen and oxygen gases, which can pose an explosion risk. Regularly inspect all connections for leaks and address any issues immediately. Follow all safety guidelines and recommendations provided by the manufacturer or other experts in the field.

Practical Applications of Hydrogen Generators

Using hydrogen generators in vehicles and homes Hydrogen generators can be used in vehicles and homes to provide a clean, sustainable source of energy. In vehicles, hydrogen can be used to power fuel cells, which generate electricity to drive electric motors. In homes, hydrogen can be used for heating, cooking, or even to generate electricity using a fuel cell system.

The potential of hydrogen as an alternative fuel source Hydrogen has significant potential as an alternative fuel source due to its abundance, high energy content, and the fact that it produces only water as a byproduct when burned or used in a fuel cell. This makes hydrogen an attractive option for reducing greenhouse gas emissions and combating climate change.

Future developments and innovations in hydrogen technology Advancements in hydrogen technology, such as improved electrolyzer efficiency, lower-cost production methods, and better storage solutions, will continue to make hydrogen a more viable alternative fuel source. As the world shifts toward cleaner and more sustainable energy sources, hydrogen is expected to play an increasingly important.

How does PEM hydrogen generator work

Author Bio
Author Photo


The SENZA R&D team consists of senior automotive engineers, hydrogen energy technology experts, and technology installation engineers. It has 8 years of experience in hydrogen energy research and development and application. Michael Wu, chief technical engineer, graduated from Sun Yat-sen University in transportation engineering. He has been engaged in engine R&D tests at Dongfeng Nissan Passenger Car Technology Center and GAC Research Institute, and is responsible for the engine R&D test project of the entire car series.

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  1. Muhammad Hafeez Ullah says:

    I love new technologies

  2. george csaki says:

    yes do you haven for sale that makes 2 liter a minute

    thank you George