A planar microfabricated electrolyzer for hydrogen and oxygen generation

L. Jiang, B. Myer, K. Tellefsen, S. Pau

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We present the design, fabrication and testing of a microfabricated planar reactor for the hydrogen evolution reaction (HER) using thin film Pt electrodes and polydimethylsiloxane (PDMS) fluidic chamber. The reactor is designed to separate gases by flow dynamics and reactor flow is analyzed by three-dimensional finite element analysis. The planar geometry is scalable, compact and stackable. Using KOH 28 wt% electrolyte, we have achieved a hydrogen generation density of 0.23 kg h-1 m-3 and an efficiency of 48% with a flow rate of 10 ml min-1 and cell voltage of 3 V.

Original languageEnglish (US)
Pages (from-to)256-260
Number of pages5
JournalJournal of Power Sources
Issue number1
StatePublished - Mar 1 2009


  • Electrolysis
  • Hydrogen
  • Microfabrication

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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