Interaction of [FeFe]-Hydrogenases with Single-walled Carbon Nanotubes

Drazenka Svedruzic Chang, Timothy J. McDonald, Yong Hyun Kim, Jeffrey L. Blackburn, Michael J. Heben, Paul W. King

Research output: Contribution to conferencePaperpeer-review


Single-walled carbon nanotubes (SWNT) are promising candidates for use in energy conversion devices as an active photo-collecting elements, for dissociation of bound excitons and charge-transfer from photo-excited chromophores, or as molecular wires to transport charge. Hydrogenases are enzymes that efficiently catalyze the reduction of protons from a variety of electron donors to produce molecular hydrogen. Hydrogenases together with SWNT suggest a novel biohybrid material for direct conversion of sunlight into H 2. Here, we report changes in SWNT optical properties upon addition of recombinant [FeFe] hydrogenases from Clostridium acetobutylicum and Chlamydomonas reinhardtii. We find evidence that novel and stable charge-transfer complexes are formed under conditions of the hydrogenase catalytic turnover, providing spectroscopic handles for further study and application of this hybrid system.

Original languageAmerican English
Number of pages9
StatePublished - 2007
EventSolar Hydrogen and Nanotechnology II - San Diego, CA, United States
Duration: 27 Aug 200730 Aug 2007


ConferenceSolar Hydrogen and Nanotechnology II
Country/TerritoryUnited States
CitySan Diego, CA

NREL Publication Number

  • NREL/CP-270-42219


  • Biohydrogen
  • Charge-transfer
  • Hydrogenases
  • Single-walled carbon nanotubes


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