ChemInform Abstract: The Use of Ultrasmall Iron(0) Nanoparticles as Catalysts for the Selective Hydrogenation of Unsaturated C—C Bonds.

Abstract

Monodisperse iron nanoparticles of about 2 nm size are prepared and tested as a heterogeneous catalyst in the hydrogenation of alkenes, dienes, and alkynes.

Iron nanotube-silica composite (ZVI-S-PCAT modified silica composite) preparation, characterization and application as a recyclable catalytic system for 5-membered ring organic transformations

“…So this property 15 of nanoscale zerovalent iron motivated us to see its another variant catalytic property in C-X organic transformations. In the context of using ZVI as catalyst in organic transformations, some of the work includes iron (0) nanoparticle-catalyzed hydrogenation in water in flow, 6 iron(0) nanoparticles as catalysts for the selective hydrogenation of unsaturated C-C bonds, 7 iron-iron oxide core-shell nanoparticles (Fe CSNPs) in the hydrogenation of olefins in ethanol 20 and in the presence of water, 8 graphene-supported iron-based nanoparticles encapsulated in nitrogen-doped carbon as a catalyst for hydrogen evolution and oxygen reduction reactions, 9 supported iron nanoparticles as catalysts for sustainable production of lower olefins, 10 asymmetric transfer hydrogenation of ketones using iron (0). 11 From the existing procedures of preparing and stabilizing zerovalent iron nanoparticles we present here a chemically modified 25 support material to stabilize Fe (0) nps and the difference observed from the earlier reported methods have shown the formation of nanotubes of iron and here we present a methodology wherein chemical modification of support material has brought such structural changes to give metallic nanotubes formation which is an important feature forming grounds to study their electrical, thermal and optical properities besides being studied as a catalyst in the present 30 work.…”