Progress Report and Future Directions Renewable energy sources such as solar, wind, or geothermal provide the possibility of large amounts of carbon-free energy, but the temporal variation in electricity output from these sources will require energy storage. Studies of H2 are a critical part of efforts to rationally design electrocatalysts for energy storage as fuels. Low-temperature proton exc...

Escherichia coli can perform at least two modes of anaerobic hydrogen metabolism and expresses at least two types of hydrogenase activity. Respiratory hydrogen oxidation is catalysed by two ‘uptake’ hydrogenase isoenzymes, hydrogenases -1 and -2, and fermentative hydrogen production is catalysed by hydrogenase-3. Harnessing and enhancing the metabolic capability of Escherichia coli to perform a...

Volume production of D negative ions including isotope effects is studied in a rectangular arc chamber. Production and control of plasma parameters in D2 plasmas are performed by varying the intensity of the magnetic filter. The values of Te and ne in D2 plasmas are slightly higher than ones in H2 plasmas. Te in D2 plasmas cannot be decreased and is kept above 1 eV in the extraction region with...

NIR light induced H2 evolution was realized by metal-free photocatalysis for the first time. The considerable H2 production at 808 nm and large promotion of the photocatalytic activity in both UV-Vis and Vis regions originated from the synergistic effect on spectral and electronic coupling of g-C3N4 nanosheets and carbon quantum dots.

The production and characterization of a monoclonal antibody (MoAb) designated Ber-H2. directed against a new epitope of the Ki-1 (CD3O) antigen. are described. In comparison with the formerly reported Ki-1 MoAb whose reactivity with Hodgkin and Reed-Sternberg (H-RS) cells in frozen tissue sections is well-documented. the Ber-H2 MoAb showed new. important features: the labeling intensity of the...

The possible influence on functional outcomes of hydrogen production in the ileoanal pouch after restorative proctocolectomy was investigated by means of lactulose H2 breath tests. Eight of 15 patients had significant increases in breath hydrogen after 10 g lactulose. One patient declined to participate in further investigations, the remaining seven responders had no evidence of small bowel bac...

Nanocomposites of tantalum-based pyrochlore nanoparticles and indium hydroxide were prepared by a hydrothermal process for UV-driven photocatalytic reactions including overall water splitting, hydrogen production from photoreforming of methanol, and CO2 reduction with water to produce CO. The best catalyst was more than 20 times more active than sodium tantalate in overall water splitting and 3...

Potassium hexaniobate nanoscrolls (NS-K4Nb6O17) formed by exfoliation of lamellar K4Nb6O17 were studied as building blocks for visible-light-driven H2 production (λ > 420 nm) from water using tris(2,2′bipyridyl)ruthenium(II) chloride (Ru(bpy)3) as a sensitizer and ethylenediaminetetraacetic acid (EDTA) as an electron donor. The surface of NS-K4Nb6O17 is negatively charged at pH 3-11, enabling c...

Occurrences whereby cnidaria lose their symbiotic dinoflagellate microalgae (Symbiodinium spp.) are increasing in frequency and intensity. These so-called bleaching events are most often related to an increase in water temperature, which is thought to limit certain Symbiodinium phylotypes from effectively dissipating absorbed excitation energy that is otherwise used for photochemistry. Here, we...