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Electrolysis03:00

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In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
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Hydrogen Production and Utilization in a Membrane Reactor
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Pulsed Dynamic Water Electrolysis: Mass Transfer Enhancement, Microenvironment Regulation, and Hydrogen Production

Xuewei Zhang1, Wei Zhou2, Xiaoxiao Meng1

  • 1School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, People's Republic of China.

Nano-Micro Letters
|January 6, 2026
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Summary

Pulsed dynamic electrolysis (PDE) enhances water electrolysis for hydrogen production by optimizing energy and mass transfer. This review explores PDE

Keywords:
Energy and mass transferMicroenvironmentPulsed dynamic electrolysisSystem stabilityWater electrolysis

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Area of Science:

  • Electrocatalysis and Sustainable Energy Conversion

Background:

  • Pulsed dynamic electrolysis (PDE) is a promising renewable energy-driven method for electrocatalytic conversion.
  • Current research inadequately explores PDE's mechanisms in energy/mass transfer and electrolysis system lifespan, especially for water electrolysis (WE).

Purpose of the Study:

  • To critically examine PDE's microenvironmental effects on energy and mass transfer.
  • To investigate electrode degradation mechanisms for extending electrolysis system lifespan.
  • To identify key factors for optimizing WE and hydrogen production.

Main Methods:

  • Review of current research on PDE in water electrolysis.
  • Analysis of microenvironmental effects on energy and mass transfer.
  • Examination of electrode degradation and hydrogen evolution reaction (HER) performance.

Main Results:

  • PDE significantly impacts energy and mass transfer through adjustable parameters like frequency, duty cycle, and amplitude.
  • Understanding these parameters is crucial for optimizing hydrogen production efficiency and stability.
  • Electrode degradation mechanisms are explored to enhance the lifespan of electrolysis systems.

Conclusions:

  • Further research into PDE's regulatory mechanisms is vital for low-energy, high-activity, and stable hydrogen production.
  • Bridging the gap between laboratory findings and industrial application requires addressing future challenges.
  • PDE offers a pathway towards sustainable hydrogen generation.