Results 51 to 60 of about 38,930 (309)

The Multifaceted Reactivity of Single‐Atom Heterogeneous Catalysts [PDF]

open access: yesAngewandte Chemie International Edition, 2018
AbstractSingle‐atom heterogeneous catalysts (SACs) attached to carefully chosen hosts are attracting considerable interest; principally because they offer maximum utilization per metal atom and are usually readily recyclable. However, diminution of the atomic population of nanoparticles or nanoclusters to single atoms can significantly alter reactivity
Sharon Mitchell   +2 more
openaire   +3 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

Single‐atom catalysts for the electrochemical reduction of carbon dioxide into hydrocarbons and oxygenates

open access: yesCarbon Energy
The electrochemical reduction of carbon dioxide offers a sound and economically viable technology for the electrification and decarbonization of the chemical and fuel industries.
Karl Adrian Gandionco   +4 more
doaj   +1 more source

Innovative applications of single-atom catalysts in MgH2/Mg system to build high-efficiency hydrogen storage

open access: yesJournal of Magnesium and Alloys
MgH2 shows significant potential for a solid-state hydrogen storage medium due to the advantages of high hydrogen capacity, excellent reversibility, and low cost.
Lixiang Ma   +5 more
doaj   +1 more source

Single atom catalysts in Van der Waals gaps

open access: yesNature Communications, 2022
A family of single-atom catalysts synthesized by intercalating metal single atoms into the van der Waals gap of two-dimensional SnS2 is reported. The materials are applied as hydrogen evolving catalysts with good durability and overpotential.
Huaning Jiang   +13 more
doaj   +1 more source

Rapid atom-efficient polyolefin plastics hydrogenolysis mediated by a well-defined single-site electrophilic/cationic organo-zirconium catalyst [PDF]

open access: gold, 2022
Alexander H. Mason   +6 more
openalex   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

A replacement strategy for regulating local environment of single-atom Co-SxN4−x catalysts to facilitate CO2 electroreduction

open access: yesNature Communications
The performances of single-atom catalysts are governed by their local coordination environments. Here, a thermal replacement strategy is developed for the synthesis of single-atom catalysts with precisely controlled and adjustable local coordination ...
Jiajing Pei   +12 more
doaj   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

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