Results 71 to 80 of about 4,584,056 (379)

Review of nonprecious metal electrocatalysts in cathode hydrogen generation by seawater electrocatalysis

open access: yesJournal of Hebei University of Science and Technology, 2022
Hydrogen energy has the advantages of high energy density,green and sustainability,which make it an ideal energy source for human society.Hydrogen generation by seawater electrocatalysis becomes the strategic direction of hydrogen energy industry in the ...
Hanming ZHANG   +2 more
doaj   +1 more source

Hydrogen symbioses in evolution and disease [PDF]

open access: yesQJM, 2007
Hydrogen is the source of energy that unites the metabolisms and fuels the innovative potentials of all living organisms. Autotrophs use hydrogen emitted into hydrothermal vents, where symbiotic communities that share hydrogen thrive. On the surface, life developed using photons to cleave water, releasing hydrogen carried into a reverse Krebs cycle to ...
A C, Williams, D B, Ramsden
openaire   +2 more sources

Dynamic restructuring of nickel sulfides for electrocatalytic hydrogen evolution reaction

open access: yesNature Communications
Transition metal chalcogenides have been identified as low-cost and efficient electrocatalysts to promote the hydrogen evolution reaction in alkaline media. However, the identification of active sites and the underlying catalytic mechanism remain elusive.
Xingyu Ding   +15 more
semanticscholar   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Effects of additives on morphology and hydrogen evolution activities of nickel films prepared by electrodepositing

open access: yesInternational Journal of Electrochemical Science, 2015
Nickel thin films with different morphologies were prepared by electrodeposition from solutions with different additives. It is found by observing the nickel film morphology with SEM that the compact nickel films were prepared from solutions containing ...
Xiongxi Wu, Qifeng Gao, Zesong Li
doaj   +1 more source

The apparent shape of the "Str\"omgren sphere'' around the highest-redshift QSOs with Gunn-Peterson troughs

open access: yes, 2004
Although the highest redshift QSOs (z>6.1) are embedded in a significantly neutral background universe (mass-averaged neutral hydrogen fraction >1%) as suggested by the Gunn-Peterson absorption troughs in their spectra, the intergalactic medium in their ...
Couderc P., Qingjuan Yu, Rees M. J.
core   +1 more source

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

open access: yesFEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Effect of Flow Rate on Corrosion Behavior and Hydrogen Evolution Potential of X65 Steel in 3.5% NaCl Solution

open access: yesInternational Journal of Electrochemical Science, 2019
Effect of flow rate on the cathodic reaction as well as hydrogen evolution potential of X65 steel in 3.5% NaCl solution were investigated using Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization.
Weiwei Kang   +3 more
doaj   +1 more source

Intermetallic Cu5Zr Clusters Anchored on Hierarchical Nanoporous Copper as Efficient Catalysts for Hydrogen Evolution Reaction

open access: yesResearch, 2020
Designing highly active and robust platinum-free electrocatalysts for hydrogen evolution reaction is vital for large-scale and efficient production of hydrogen through electrochemical water splitting.
Hang Shi   +8 more
doaj   +1 more source

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