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

Abstract

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{sub 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.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
940621
DOE Contract Number:  
AC36-99-GO10337
Resource Type:
Journal Article
Resource Relation:
Journal Name: Solar Hydrogen and Nanotechnology II; Journal Volume: 6650
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 09 BIOMASS FUELS; 77 NANOSCIENCE AND NANOTECHNOLOGY; BINDING ENERGY; CARBON; CHLAMYDOMONAS; CLOSTRIDIUM ACETOBUTYLICUM; DISSOCIATION; ELECTRONS; ENERGY CONVERSION; ENZYMES; EXCITONS; HYBRID SYSTEMS; HYDROGEN; HYDROGENASES; NANOTUBES; OPTICAL PROPERTIES; PROTONS; VALENCE; Basic Sciences

Citation Formats

Chang, D. S., McDonald, T. J., Kim, Y.-H., Blackburn, J. L., Heben, M. J., and King, P. W.. Interaction of [FeFe]-Hydrogenases with Single-walled Carbon Nanotubes. United States: N. p., 2007. Web. doi:10.1117/12.736232.
Chang, D. S., McDonald, T. J., Kim, Y.-H., Blackburn, J. L., Heben, M. J., & King, P. W.. Interaction of [FeFe]-Hydrogenases with Single-walled Carbon Nanotubes. United States. doi:10.1117/12.736232.
Chang, D. S., McDonald, T. J., Kim, Y.-H., Blackburn, J. L., Heben, M. J., and King, P. W.. Mon . "Interaction of [FeFe]-Hydrogenases with Single-walled Carbon Nanotubes". United States. doi:10.1117/12.736232.
@article{osti_940621,
title = {Interaction of [FeFe]-Hydrogenases with Single-walled Carbon Nanotubes},
author = {Chang, D. S. and McDonald, T. J. and Kim, Y.-H. and Blackburn, J. L. and Heben, M. J. and King, P. W.},
abstractNote = {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{sub 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.},
doi = {10.1117/12.736232},
journal = {Solar Hydrogen and Nanotechnology II},
number = ,
volume = 6650,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}