Results 1 to 10 of about 219,982 (268)

Constructing multiple active sites in iron oxide catalysts for improving carbonylation reactions

open access: yesNature Communications, 2023
Surface engineering is a promising strategy to improve the catalytic activities of heterogeneous catalysts. Nevertheless, few studies have been devoted to investigate the catalytic behavior differences of the multiple metal active sites triggered by the ...
Shujuan Liu   +6 more
doaj   +1 more source

A facile strategy for incorporation of PtCo alloy into UiO-66-NH2 for cinnamaldehyde hydrogenation

open access: yesCatalysis Communications, 2023
As a material with multifunctional ligands, metal-organic frameworks (MOFs) can effectively regulate the electronic and geometric state of supported metal nanoparticles (MNPs).
Haiyu Shen   +6 more
doaj   +1 more source

Nitrogen-incorporation activates NiFeOx catalysts for efficiently boosting oxygen evolution activity and stability of BiVO4 photoanodes

open access: yesNature Communications, 2021
While solar-to-fuel conversion offers a renewable energy production strategy, photoelectrochemical water splitting requires further optimization.
Beibei Zhang   +7 more
doaj   +1 more source

Enhancing stability by trapping palladium inside N-heterocyclic carbene-functionalized hypercrosslinked polymers for heterogeneous C-C bond formations

open access: yesNature Communications, 2021
Catalyst deactivation caused by the aggregation of active metal species poses great challenges for supported metal catalyzed solid-liquid reactions. Here, the authors develop a hypercrosslinked polymer integrated with N-heterocyclic carbene (NHC) as ...
Chengtao Yue   +5 more
doaj   +1 more source

Tunable synthesis of furfurylamines or β-amino alcohols via Ru-catalyzed N–H functionalization using biomass-derived polyols

open access: yesGreen Synthesis and Catalysis, 2022
We report the highly efficient conversion of readily available biomass-derived polyols with amines to valuable furfurylamines or β-amino alcohols compounds using ruthenium catalysis.
Le Jia   +5 more
doaj   +1 more source

Detection of Lipase Activity Based on Fluorescence Inner Filter Effect of p-Nitrophenol [PDF]

open access: yesShipin Kexue, 2023
Lipase activity was detected based on the fluorescence properties of gold nanoclusters (AuNCs) and the inner filter effect (IFE) of p-nitrophenol. Glutathione-modified AuNCs was used as fluorophore, and p-nitrophenol produced from the lipase-catalyzed ...
XU Yang, XIN Jiaying, LI Huimin, WANG Guiru, WANG Yuqing
doaj   +1 more source

Chemodivergent transformations of amides using gem-diborylalkanes as pro-nucleophiles

open access: yesNature Communications, 2020
Amides are versatile synthetic building blocks, however the general stability of the amide bond makes its selective transformation challenging. Here, the authors report a chemodivergent transformation of primary, secondary and tertiary amides by using 1 ...
Wei Sun   +5 more
doaj   +1 more source

Understanding Selective Oxidations

open access: yesCHIMIA, 2010
Functionalizing organic molecules is an important value-creating step throughout the entire chemical value-chain. Oxyfunctionalization of value-chain. Oxyfunctionalization of e.g. C–H or C=C bonds is one of the most important functionalization technologies used industrially.
Ulrich Neuenschwander   +4 more
openaire   +3 more sources

Catalysts for the Selective Oxidation of Methanol [PDF]

open access: yesCatalysts, 2016
In industry, one of the main catalysts typically employed for the selective oxidation of methanol to formaldehyde is a multi-component oxide containing both bulk Fe2(MoO4)3 and excess MoO3. It is thought that the excess MoO3 primarily acts to replace any molybdenum lost through sublimation at elevated temperatures, therefore preventing the formation of
Catherine Brookes   +2 more
openaire   +2 more sources

Site-selective Electrochemical Oxidation of Glucosides

open access: yesACS Catalysis, 2022
Quinuclidine-mediated electrochemical oxidation of glycopyranosides provides C3-ketosaccharides with high selectivity and good yields. The method is a versatile alternative to Pd-catalyzed or photochemical oxidation and is complementary to the 2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPO)-mediated C6-selective oxidation.
Marios Kidonakis   +4 more
openaire   +4 more sources

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