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Title: Biological Systems for Hydrogen Photoproduction (Poster)

Abstract

Presented at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review in Washington, D.C., May 16-19, 2006.

Authors:
; ; ;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
908690
Report Number(s):
NREL/PO-560-39994
TRN: US200722%%870
DOE Contract Number:
AC36-99-GO10337
Resource Type:
Conference
Resource Relation:
Conference: Presented at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review, 16-19 May 2006, Washington, D.C.
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 59 BASIC BIOLOGICAL SCIENCES; FUEL CELLS; HYDROGEN; NATIONAL RENEWABLE ENERGY LABORATORY; PHOTOPRODUCTION; HYDROGEN ALGAL CULTURE; H2; O2; CLONING; Hydrogen

Citation Formats

Ghirardi, M., King, P., Maness, P. C., and Seibert, M. Biological Systems for Hydrogen Photoproduction (Poster). United States: N. p., 2006. Web.
Ghirardi, M., King, P., Maness, P. C., & Seibert, M. Biological Systems for Hydrogen Photoproduction (Poster). United States.
Ghirardi, M., King, P., Maness, P. C., and Seibert, M. Mon . "Biological Systems for Hydrogen Photoproduction (Poster)". United States. doi:. https://www.osti.gov/servlets/purl/908690.
@article{osti_908690,
title = {Biological Systems for Hydrogen Photoproduction (Poster)},
author = {Ghirardi, M. and King, P. and Maness, P. C. and Seibert, M.},
abstractNote = {Presented at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review in Washington, D.C., May 16-19, 2006.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2006},
month = {Mon May 01 00:00:00 EDT 2006}
}

Conference:
Other availability
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  • Presentation on Biological Systems for Hydrogen Photoproduction for the 2005 Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Review held in Arlington, Virginia, May 23-26, 2005.
  • This presentation summarizes biological systems for hydrogen photoproduction.
  • This presentation summarizes NREL biological systems for hydrogen photoproduction work for the DOE Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting, May 14-18, 2012. General goal is develop photobiological systems for large-scale, low cost and efficient H{sub 2} production from water (barriers AH, AI and AJ). Specific tasks are: (1) Address the O{sub 2} sensitivity of hydrogenases that prevent continuity of H{sub 2} photoproduction under aerobic, high solar-to-hydrogen (STH) light conversion efficiency conditions; and (2) Utilize a limited STH H{sub 2}-producing method (sulfur deprivation) as a platform to address or test other factors limiting commercial algalmore » H{sub 2} photoproduction, including low rates due to biochemical and engineering mechanisms.« less
  • Following are the major accomplishments of the 6th year`s study of biological hydrogen photoproduction which were supported by DOE/NREL. (1) We have been characterizing a biological hydrogen production system using synchronously growing aerobically nitrogen-fixing unicellular cyanobacterium, Synechococcus sp. Miami BG 043511. So far it was necessary to irradiate the cells to produce hydrogen. Under darkness they did not produce hydrogen. However, we found that, if the cells are incubated with oxygen, they produce hydrogen under the dark. Under 80% argon + 20% oxygen condition, the hydrogen production activity under the dark was about one third of that under the lightmore » + argon condition. (2) Also it was necessary so far to incubate the cells under argon atmosphere to produce hydrogen in this system. Argon treatment is very expensive and should be avoided in an actual hydrogen production system. We found that, if the cells are incubated at a high cell density and in a container with minimum headspace, it is not necessary to use argon for the hydrogen production. (3) Calcium ion was found to play an important role in the mechanisms of protection of nitrogenase from external oxygen. This will be a clue to understand the reason why the hydrogen production is so resistant to oxygen in this strain. (4) In this strain, sulfide can be used as electron donor for the hydrogen production. This result shows that waste water can be used for the hydrogen production system using this strain.« less