نتایج جستجو برای: redox reaction
تعداد نتایج: 446587 فیلتر نتایج به سال:
We report a rapid and efficient procedure to functionalize SWNT where free radicals generated at room temperature by a redox reaction between reduced SWNT and diacyl peroxide derivatives were covalently attached to the SWNT wall.
Carbon nanostructures have played an important role in creating a new field of materials based on carbon. Chemical modification of carbon nanostructures through grafting has been a successful step to improve dispersion and compatibility in solvents, with biomolecules and polymers to form nanocomposites. In this sense carbohydrates such as chitosan are extremely valuable because their functional...
A straightforward, efficient, and reliable redox catalyst system for the Au(I)/Au(III)-catalyzed Sonogashira cross-coupling reaction of functionalized terminal alkynes with arylboronic acids under mild conditions has been developed.
In this work, a novel mechanistic model of hop inhibition beyond the proton ionophore action toward (beer spoiling) bacteria was developed. Investigations were performed with model systems using cyclic voltammetry for the determination of redox processes/conditions in connection with growth challenges with hop-sensitive and -resistant Lactobacillus brevis strains in the presence of oxidants. Cy...
Abstract Terthiazoles with redox‐active substituents like an N‐methyl pyridinium group and ferrocene have been synthesized their photo‐ electro‐chromic behaviors were investigated. The presence of two lateral in the structure terthiazole proved to be effective inducing not only reductive ring‐closure core but also its oxidative ring‐opening reaction, leading first terarylene‐based switch able f...
A triazolium salt derived N-heterocyclic carbene catalyzes the redox esterification reaction between α-β-unsaturated aldehydes and oximes. The resulting saturated oxime esters were obtained in very good yields for a broad range of aliphatic, aromatic and heteroaromatic substrates.
Doped and undoped ZnS semiconductor nanocrystals having different recombination pathways are explored to study the charge transfer reaction between the nanocrystals and the 4-nitrophenol/sodium borohydride redox couple.
A strategy for the electrochemical detection of DNA based on catalytic hairpin assembly combined with nanocatalyst label-based redox cycling reaction signal amplification. A superior detection limit of 0.3 aM toward DNA can be achieved.
Identifying interesting redox-active couples from the vastness of organic chemical space requires rapid screening techniques. A good initial indicator for worthy further investigation is heat reaction ΔH°. Traditional methods calculating this quantity, both experimental and computational, are prohibitively costly at large scale. Instead, we apply a graph convolutional network to estimate heats ...
A series of TiO 2 -supported MO x catalysts (M=V, W, Ce, Cu and S) were investigated for their SCR activity. In situ Raman spectroscopy indicated that the supported phases completely dispersed as surface sites on support. IR revealed VO , WO SO anchored at both CeO /CuO sites. The number Lewis acid decreased with addition basic (CeO ) acidic (VO /WO in all catalysts, unpromoted Ce-promoted cata...
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