The effect of Halobacterium halobium on photoelectrochemical hydrogen production

Sediroglu, V
Yucel, M
Gündüz, Ufuk
Turker, L
Eroğlu, İnci
A bio-photoelectrochemical (bio-PEC) reactor containing the photosynthetic bacterium Halobacterium halobium has been constructed. H. halobium contains a retinal protein, bacteriorhodopsin, in its purple membrane that gives protons upon illumination. In this system, the biocatalytic effect of bacteriorhodopsin on photoelectrochemical hydrogen production was determined.


The biocatalytic effect of Halobacterium halobium on photoelectrochemical hydrogen production
Sediroglu, V; Eroglu, I; Yucel, M; Turker, L; Gündüz, Ufuk (1999-04-30)
Hydrogen gas can be produced electrochemically by leading a current through two electrodes immersed in a NaCl solution. Bacteriorhodopsin (BR) a protein found in the purple membrane of Halobacterium halobium, is known to pump protons across the membrane upon illumination. In this study, the effect of BR on photoelectrochemical hydrogen production was investigated. A batch type bio-photoelectrochemical reactor was designed and constructed. The photoelectrochemical hydrogen production experiments were perform...
Contribution of Pd Membrane to Dehydrogenation of Isobutane Over a New Mesoporous Cr/MCM-41 Catalyst
ÇETİNYOKUŞ, SALİHA; DOĞAN, MELTEM; Doğu, Timur (2016-06-01)
A chromium incorporated mesoporous silicate structured Cr/MCM-41 type catalyst was synthesized following a one-pot hydrothermal route and tested in dehydrogenation of isobutane to isobutene in a Pd membrane reactor. Characterization results of the catalyst proved that it had ordered pore structure with a narrow pore size distribution. This catalyst showed quite high activity for the dehydrogenation of isobutane. Membrane reactor tests performed at 823 K proved the advantages of in-situ removal of produced h...
The impact of ionic liquid pretreatment on the chemistry and enzymatic digestibility of Pinus radiata compression wood
Compression wood represents a unique challenge for biochemical processing of softwoods to biofuels and chemicals on account of its high lignin and galactan, and low glucan contents. Here we report the impact of ionic liquid pretreatment on the chemistry and enzymatic digestibility of Pinus radiata compression wood and opposite wood. Samples were pretreated using 1-ethyl-3-methylimidazolium acetate at 120 degrees C and 155 degrees C for 3 h. Hemicelluloses were preferentially extracted during the pretreatmen...
Erden, Fuat; Karakaya, İshak; ERDOĞAN, METEHAN (2014-02-20)
Mg-Ni system draws attention due to the promising hydrogen storage properties of Mg2Ni. The proposed method involves the use of NiO and MgCl2 in an electrochemical cell to from Mg-Ni intermetallics directly. The electrodeoxidation of NiO was followed by combination of Mg and Ni in molten salt electrolytes. The products were characterized by XRD analysis and SEM examinations. The quantitative results from Rigaku supported by Rietveld Refinement method conducted by Maud showed that more than 50 percent of the...
The influence of nutrient loading, climate and water depth on nitrogen and phosphorus loss in shallow lakes: a pan-European mesocosm experiment
Coppens, Jan; Hejzlar, Josef; Sorf, Michal; Jeppesen, Erik; Erdogan, Aeyda; Scharfenberger, Ulrike; Mahdy, Aldoushy; Noges, Peeter; Tuvikene, Arvo; Baho, Didier L.; Trigal, Cristina; Papastergiadou, Eva; Stefanidis, Kostas; Olsen, Saara; Beklioğlu, Meryem (2016-09-01)
Losses of phosphorus (P) and nitrogen (N) have important influences on in-lake concentrations and nutrient loading to downstream ecosystems. We performed a series of mesocosm experiments along a latitudinal gradient from Sweden to Greece to investigate the factors influencing N and P loss under different climatic conditions. In six countries, a standardised mesocosm experiment with two water depths and two nutrient levels was conducted concurrently between May and November 2011. Our results showed external ...
Citation Formats
V. Sediroglu, M. Yucel, U. Gündüz, L. Turker, and İ. Eroğlu, “The effect of Halobacterium halobium on photoelectrochemical hydrogen production,” presented at the International Conference on Biological Hydrogen Production, WAIKOLOA, HI, 1997, Accessed: 00, 2020. [Online]. Available: