Results 51 to 60 of about 197,550 (311)

RuKY Catalyst‐Packed Permeation Membrane for Quantitative Ammonia and d3‐Ammonia Dehydrogenation to Ultrapure Hydrogen

ChemistryOpen
Ammonia is a promising carbon‐free hydrogen carrier, but incomplete ammonia dehydrogenation (cracking) generates atmospheric emissions of NOx, a potent greenhouse gas. Additionally, incomplete cracking of ammonia leads to regulatory challenges in nuclear
Christopher J. Koch, Jennifer Naglic, John T. Kelly, Logan Kearney, José D. Arregui‐Mena, Jochen Lauterbach, Lucas M. Angelette, Tyler Guin   +7 more
doaj   +1 more source

Material Challenges and Hydrogen Embrittlement Assessment for Hydrogen Utilisation in Industrial Scale

Hydrogen, 2023
Hydrogen has been studied extensively as a potential enabler of the energy transition from fossil fuels to renewable sources. It promises a feasible decarbonisation route because it can act as an energy carrier, a heat source, or a chemical reactant in ...
Alexander Ilyushechkin, Liezl Schoeman, Lachlan Carter, San Shwe Hla   +3 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Hydrogen from urea: a novel energy source [PDF]

, 2011
This research presents a viability assessment of using urea as an energy vector. Urea is attractive in comparison to the chemicals previously considered for supplying hydrogen since it is non-toxic, non-flammable and stable at room temperature and ...
Rollinson, Andrew Neil
core  

Recent Progress in Halide Perovskite Nanocrystals for Photocatalytic Hydrogen Evolution

Nanomaterials, 2022
Due to its environmental cleanliness and high energy density, hydrogen has been deemed as a promising alternative to traditional fossil fuels. Photocatalytic water-splitting using semiconductor materials is a good prospect for hydrogen production in ...
Zhijie Zhang, Rui Zhou, Deben Li, Ying Jiang, Xuesheng Wang, Huiling Tang, Jiayue Xu   +6 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Unraveling the Role of Functional Groups in Polyaniline for Ammonia Sensing: A Theoretical Approach

Engineered Science
One of the pressing challenges in the hydrogen energy field is the safe storage and transport of hydrogen, where leakage can pose severe risks, making the detection of hydrogen and its carriers, such as ammonia, critically important.
Areyi Nulimu, Anuar Aldongarov, Saniya Sarsenova, Aigerim Ibrayeva, Mirat Karibayev   +4 more
doaj   +1 more source

Online monitoring of energy content and impurities in hydrogen using a micro gas chromatograph [PDF]

EPJ Web of Conferences
Hydrogen is increasingly considered as a clean alternative to natural gas, creating a need for reliable online measurements of its energy content and impurity concentrations.
Krolis Eva, Karaburun-Yavuz Füsun
doaj   +1 more source

Converting the Charge Transfer in ZnO/ZnxCd1‐xS‐DETA Nanocomposite from Type‐I to S‐scheme for Efficient Photocatalytic Hydrogen Production

Advanced Materials Interfaces, 2022
As for the composite photocatalysts, the carrier transfer mechanism at the heterojunction has a very important impact on their photocatalytic performances. In this work, the bandgap of ZnxCd1‐xS‐DETA can be tuned by adjusting the ratio of Cd2+/Zn2+. With
Zhen Li, Tingting Ma, Jinfeng Zhang, Zhenghua Wang   +3 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source