Results 61 to 70 of about 4,289,500 (393)
Enabling large-scale hydrogen storage in porous media – the scientific challenges
Energy & Environmental Science, 2021 This article identifies and discusses the scientific challenges of hydrogen storage in porous media for safe and efficient large-scale energy storage to enable a global hydrogen economy.
N. Heinemann +15 more
semanticscholar +1 more source
Ionization of Hydrogen and Hydrogenic Ions by Antiprotons [PDF]
Physical Review Letters, 1996 Presented here is a description of the ionization of hydrogen and hydrogenic ions by antiproton-impact, based on very large scale numerical solutions of the time-dependent Schr dinger equation in three spatial dimensions and on analysis of the topology of the electronic eigenenergy surfaces in the plane of complex internuclear distance.
Carlos O. Reinhold +3 more
openaire +4 more sources
Life Cycle Global Warming Impact of Long-Distance Liquid Hydrogen Transport from Africa to Germany
Hydrogen, 2023 The global interest in hydrogen as an energy carrier is steadily increasing. In this study, multiple scenarios of liquid hydrogen exports from Africa to Germany are analyzed by life cycle assessment (LCA) to quantify the global warming potential (GWP) of
Olga Kanz +4 more
doaj +1 more source
Hydrogen enhanced thermal fatigue of y-titanium aluminide [PDF]
, 1995 A study of hydrogen enhanced thermal fatigue cracking was carried out for a gamma-based Ti-48Al-2Cr alloy by cycling between room temperature and 750 or 900 °C.
Dunfee, William +3 more
core +3 more sources
The Weak Hydrogen Bond: In Structural Chemistry and Biology
, 1999 1. Introduction 2. Archetypes of the weak hydrogen bond 3. Other weak and non-conventional hydrogen bonds 4. The weak hydrogen bond in supramolecular chemistry 5. The weak hydrogen bond in biological structures 6.
G. Desiraju, T. Steiner
semanticscholar +1 more source
Characterization of fungal carbonyl sulfide hydrolase belonging to clade D β‐carbonic anhydrase
FEBS Letters, EarlyView.Here, we performed a functional analysis of the fungal enzymes belonging to clade D of the β‐class carbonic anhydrase family (β‐D‐CA). The β‐D‐CAs in the basidiomycete Gloeophyllum trabeum and the ascomycete Trichoderma harzianum showed very low activity in the hydration of CO2 but exhibited high activity in the hydrolysis of carbonyl sulfide (COS ...
Ryuka Iizuka +6 more
wiley +1 more source
Hydrogenation of single-walled carbon nanotubes [PDF]
, 2005 Towards the development of a useful mechanism for hydrogen storage, we have studied the hydrogenation of single-walled carbon nanotubes with atomic hydrogen using core-level photoelectron spectroscopy and x-ray absorption spectroscopy. We find that atomic hydrogen creates C-H bonds with the carbon atoms in the nanotube walls and such C-H bonds can be ...
arxiv +1 more source
A hollow fiber membrane probe for the measurement of the hydrogen concentration in a liquid [PDF]
, 1991 A new method is introduced to measure the hydrogen concentration in liquids by applying a polyethersulfone hollow fiber membrane as a probe. Hydrogen rapidly diffuses through the fiber wall after which it is carried to a thermal conductivity detector by ...
Hof, J.A. van 't +2 more
core +2 more sources
Hydrogen Production Technologies: From Fossil Fuels toward Renewable Sources. A Mini Review
Energy & Fuels, 2021 : The global economic growth, the increase in the population, and advances in technology lead to an increment in the global primary energy demand. Considering that most of this energy is currently supplied by fossil fuels, a considerable amount of ...
P. J. Megía +3 more
semanticscholar +1 more source
FEBS Letters, EarlyView.In modular polyketide synthases, the dehydratase (DH) domain catalyzes the dehydration reaction of the β‐hydroxyacyl unit attached to the cognate acyl carrier protein (ACP) domain. However, it is unclear how DH interacts with ACP during the reaction. In this study, we identified DH–ACP interface residues, providing the first detailed insights into DH ...
Kaede Kotagiri +8 more
wiley +1 more source