Converting Silicon Nanoparticles into Nickel Iron Silicide Nanocrystals within Molten Salts for Water Oxidation Electrocatalysis

We synthesize metal silicide electrocatalysts of water oxidation, by using the high reactivity of silicon nanoparticles and the unique stability and low vapor pressure of molten salt solvents, to perform...

New superhydrophobic and self-cleaning zirconia/polydimethylsiloxane nanocomposite coated cotton fabrics

Zirconia/polydimethylsiloxane nanocomposite coated fabric demonstrates unique stability with tendencies toward self-cleaning and oil–water separations due to its nanopatterned morphologies and adhering superhydrophobic polysiloxane chemical groups.

Distorted copper(ii) radicals with sterically hindered salens: electronic structure and aerobic oxidation of alcohols

Strongly distorted copper salen complexes show a unique stability in four different redox states by CV. Copper phenoxyl radical complexes are structurally characterized. They promote the catalytic aerobic oxidation of 2-phenylethanol under air.

Tertiary Enamides: Versatile and Available Substrates in Synthetic Chemistry

Background: Enamines and their variant enamides as powerful and versatile synthons have attracted great attention in synthetic chemistry. Enamides display unique stability and reduce enaminic reactivity in view of the electron-withdrawing effect of N-acyl group. A great deal of satisfactory achievements in the synthesis and application of enamides has been made in recent years. Especially, tertiary enamides without N-H bond regarded as low reactivity of compounds in the past can act as excellent nucleophiles to react with electrophiles for the construction of various nitrous molecules. </P><P> Objective: This review focuses on recent advances on tertiary enamides in the synthetic strategies and applications including addition, coupling reaction, functionalization and electro- or photo-chemical reaction. Conclusion: Tertiary enamides as electron-deficient nucleophiles display a satisfactory balance between stability and reactivity to offer multiple opportunities for the construction of various functionalized nitrogencontaining compounds. Further exploration of the reactive mechanisms involved tertiary enamides and the development of novel and efficient transformations to generate ever more complex building blocks starting from tertiary enamides are particularly worth pursuing.

“Fishing” of heteropolyacids into carbonaceous seine via coking

Heteropolyacid has been encapsulated into a porous carbon matrix using controlled coking. The catalyst demonstrated unique stability toward leaching with high activity in the esterification reaction.