Results 51 to 60 of about 702,145 (300)

Conjugated Polymers with Oligoethylene Glycol Side Chains for Improved Photocatalytic Hydrogen Evolution

open access: yesiScience, 2019
Summary: Conjugated polymers are emerging as promising organic photocatalysts for hydrogen evolution from water. However, it is still very challenging for conjugated polymers to realize highly efficient photocatalytic hydrogen evolution.
Zhicheng Hu   +6 more
doaj   +1 more source

Integrated interfacial design of covalent organic framework photocatalysts to promote hydrogen evolution from water

open access: yesNature Communications, 2023
Attempts to develop hydrogen evolution photocatalysts usually result in low efficiency. Here the authors report a photocatalyst system by integrated interfacial design of stable covalent organic frameworks for high performance hydrogen evolution.
Ting He   +13 more
doaj   +1 more source

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

Generation of quasi-monoenergetic protons from thin multi-ion foils by a combination of laser radiation pressure acceleration and shielded Coulomb repulsion [PDF]

open access: yes, 2013
We study theoretically and numerically the acceleration of protons by a combination of laser radiation pressure acceleration and Coulomb repulsion of carbon ions in a multi-ion thin foil made of carbon and hydrogen.
Chen, Shih-Hung   +8 more
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Water Splitting Reaction at Polar Lithium Niobate Surfaces [PDF]

open access: yes, 2019
Water splitting is a highly promising, environmentally friendly approach for hydrogen production. It is often discussed in the context of carbon dioxide free combustion and storage of electrical energy after conversion to chemical energy.
Dues, Christof   +2 more
core   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +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

Charge self-regulation in 1T'''-MoS2 structure with rich S vacancies for enhanced hydrogen evolution activity

open access: yesNature Communications, 2022
Metal chalcogenides have shown promising performances for renewable hydrogen evolution and such activities are sensitive to the material electronic structures.
Xiaowei Guo   +8 more
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

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