Results 81 to 90 of about 5,474,145 (308)

Multi-wavelength holography with a single spatial light modulator for ultracold atom experiments [PDF]

open access: yes, 2015
The authors acknowledge funding from the Leverhulme Trust Research Project Grant RPG-2013-074 and from the EPSRC grant GR/T08272/01.We demonstrate a method to independently and arbitrarily tailor the spatial profile of light of multiple wavelengths and ...
Cassettari, Donatella   +3 more
core   +1 more source

Pushing the Limits of Precious Metal Atom Economy for Three-Way-Catalysts (TWC): Thermally Stable and Highly Active Single Rh Atom Catalysts (Rh1/ceria) Under Both Dry and Industrially Relevant Conditions for NO Abatement [PDF]

open access: yes, 2020
We show for the first time that single positively-charged Rh atoms on ceria, prepared via high-temperature atom trapping synthesis, are the highly active species for (CO+NO) reaction both under dry and wet, industrial conditions.
Nicholas R., Jaegers   +6 more
core   +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

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

open access: yesFEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn   +2 more
wiley   +1 more source

Protein nanoreactors and native enzymes for controlled/living radical polymerization [PDF]

open access: yes, 2013
The present PhD thesis entitled ‚Protein Nanoreactors and Native Enzymes for Controlled/Living Radical Polymerization‘ began with the hypothesis that protein-catalyst conjugates are able to beneficially influence controlled/living radical polymerization,
Renggli, Kasper
core   +1 more source

Structural rule of N-coordinated single-atom catalysts for electrochemical CO2 reduction

open access: yes, 2022
Metal single-atom catalysts (SACs) on nitrogen-doped carbons exhibit an attractive prospect in catalysis. However, how to quickly collocate various metal centers with diverse N-coordination topological structures to maximize the catalytic performance is ...
Yuan, H   +5 more
core   +1 more source

Recent Progress of Studies on Photoconversion and Photothermal Conversion of CO2 with Single-Atom Catalysts

open access: yesChem & Bio Engineering
Catalytic conversion of carbon dioxide (CO2) into useful chemical raw materials or fuels can help achieve the “dual carbon” goals of carbon peaking and carbon neutrality.
Guoxiang Yang   +4 more
doaj   +1 more source

The simplest construction of single-site catalysts by the synergism of micropore trapping and nitrogen anchoring

open access: yesNature Communications, 2019
Single-atom catalysts maximize atom usage within supports, but preparations can be complex. Here, authors show a facile impregnation-adsorption method to attach single noble-metal atoms to N-doped porous carbon and demonstrate strong electrocatalytic ...
Zhiqi Zhang   +13 more
doaj   +1 more source

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

open access: yesAdvanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed   +6 more
wiley   +1 more source

Amorphizing noble metal for single-atom-layer catalysis [PDF]

open access: yes, 2020
Rational design of noble metal catalysts with the potential to leverage efficiency is vital for industrial applications. Such an ultimate atom-utilization efficiency can be achieved when all noble metal atoms exclusively contribute to catalysis. Here, we
Yu, Peng   +17 more
core   +1 more source

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