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Protocol for assembling and operating bipolar membrane water electrolyzers.

Isabela Rios Amador1, Ryan T Hannagan1, Daniela H Marin1

  • 1Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA; SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.

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This study details a protocol for assembling and operating bipolar membrane water electrolyzers (BPMWEs) using various water sources, including seawater. This enables sustainable hydrogen production from impure water.

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Area of Science:

  • Electrochemistry
  • Sustainable Energy Technologies
  • Water Splitting

Background:

  • Bipolar membrane water electrolyzers (BPMWEs) offer a sustainable pathway for hydrogen production.
  • Utilizing impure water sources like seawater is crucial for widespread adoption.
  • Standardized protocols are needed for reproducible BPMWE assembly and operation.

Purpose of the Study:

  • To present a comprehensive protocol for assembling and operating BPMWEs.
  • To demonstrate the functionality of BPMWEs with diverse water feedstocks, including seawater.
  • To facilitate the scalable and sustainable production of hydrogen.

Main Methods:

  • Detailed steps for membrane electrode assembly preparation.
  • Guidance on electrolyzer assembly procedures.
  • Methodology for electrochemical evaluation of BPMWE performance.

Main Results:

  • Successful assembly and operation of BPMWEs demonstrated.
  • Functionality confirmed across various water feedstocks, from deionized water to seawater.
  • Protocol provides a reproducible framework for hydrogen generation.

Conclusions:

  • The presented protocol enables efficient hydrogen production from impure water sources using BPMWEs.
  • This technology supports sustainable hydrogen generation, particularly from seawater.
  • The protocol serves as a valuable resource for researchers and engineers in the field.