Palladium based micro-membrane hydrogen gas separator-reactor in a miniature fuel processor for micro fuel cells

Sooraj V. Karnik, Miltiadis K. Hatalis, Mayuresh V. Kothare

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel palladium-based micromembrane has been fabricated and tested which has the potential to be used for carbon monoxide shift reaction and hydrogen gas separation in a miniature fuel processor for micro fuel cells. The micromembrane structure is built in silicon substrate, using standard MEMS microfabrication processes. The four layers, viz., copper, aluminum, spin-on-glass (SOG) and palladium form the composite micromembrane. Copper, aluminum and SOG serve as a structural support for the palladium film. Copper also acts as a catalyst in the shift reaction that converts unwanted carbon monoxide gas into hydrogen, which in turn is separated by the palladium micro-membrane. For a particular combination of thicknesses for various layers, the composite micro-membrane withstands a pressure gradient up to 1 atm. The micromembrane separates hydrogen from a 20% hydrogen balance nitrogen gas mixture at room temperature.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
Pages243-248
Number of pages6
Volume687
StatePublished - 2002
Externally publishedYes
EventMaterials Science of Microelectromechanical Systems (MEMS) Devices IV - Boston, MA, United States
Duration: Nov 25 2001Nov 28 2001

Other

OtherMaterials Science of Microelectromechanical Systems (MEMS) Devices IV
CountryUnited States
CityBoston, MA
Period11/25/0111/28/01

Fingerprint

Palladium
Separators
Fuel cells
Hydrogen
Gases
Membranes
Copper
Carbon Monoxide
Aluminum
Carbon monoxide
Glass
Microfabrication
Composite materials
Silicon
Pressure gradient
Gas mixtures
MEMS
Nitrogen
Catalysts
Substrates

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Karnik, S. V., Hatalis, M. K., & Kothare, M. V. (2002). Palladium based micro-membrane hydrogen gas separator-reactor in a miniature fuel processor for micro fuel cells. In Materials Research Society Symposium - Proceedings (Vol. 687, pp. 243-248)

Palladium based micro-membrane hydrogen gas separator-reactor in a miniature fuel processor for micro fuel cells. / Karnik, Sooraj V.; Hatalis, Miltiadis K.; Kothare, Mayuresh V.

Materials Research Society Symposium - Proceedings. Vol. 687 2002. p. 243-248.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Karnik, SV, Hatalis, MK & Kothare, MV 2002, Palladium based micro-membrane hydrogen gas separator-reactor in a miniature fuel processor for micro fuel cells. in Materials Research Society Symposium - Proceedings. vol. 687, pp. 243-248, Materials Science of Microelectromechanical Systems (MEMS) Devices IV, Boston, MA, United States, 11/25/01.
Karnik SV, Hatalis MK, Kothare MV. Palladium based micro-membrane hydrogen gas separator-reactor in a miniature fuel processor for micro fuel cells. In Materials Research Society Symposium - Proceedings. Vol. 687. 2002. p. 243-248
Karnik, Sooraj V. ; Hatalis, Miltiadis K. ; Kothare, Mayuresh V. / Palladium based micro-membrane hydrogen gas separator-reactor in a miniature fuel processor for micro fuel cells. Materials Research Society Symposium - Proceedings. Vol. 687 2002. pp. 243-248
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