Reduction of nitroarenes catalyzed by microgel-stabilized silver nanoparticles

Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects

“…Silver nanoparticles have gained attention as catalysts for various reduction reactions ( Begum et al, 2019 , 2017 ; Naseem et al, 2019 ; Begum et al, 2016 ) but their utility as nano-catalyst for Cr(VI) reduction is limited ( Chen et al, 2018a ; Liu et al, 2016a ). Low stability of Ag nanoparticles as compared to other noble metal (Pt and Pd etc.)…”

Polymer microgels for the stabilization of gold nanoparticles and their application in the catalytic reduction of nitroarenes in aqueous media

“…The molecular hydrogen and nitroarenes migrated from the bulk region to the surface of Au nanoparticles through the crosslinked polymeric network system. 54 At the surface of the Au nanoparticles, hydrogen is attached and interactions are generated between the electron-deficient nitro groups of the nitroarenes and molecular hydrogen, as shown in part a of Fig. 9 .…”

Bifunctional Platinum Tetrapods: High‐Performance Catalyst for Hydrogenation of Aromatic Nitro Compounds and Electrochemical Sensor for Hydrazine.

“…Compared to previously reported Pt and other metal catalyzed nitroreduction using hydrazine as reducing agent (50‐130 h −1 ). Pt TPs@HCSs is the best heterogeneous catalyst for hydrogenation of various nitroaromatic compounds without molecular hydrogen (Table S2) …”

“…Pt TPs@HCSs is the best heterogeneous catalyst for hydrogenation of various nitroaromatic compounds without molecular hydrogen (Table S2). [35][36][37][38][39][40][41][42][43][44][45] In order to establish the structure-property relationship of Pt catalysts in nitroreduction, hydrogenation of aromatic nitro compounds was investigated by comparing Pt TPs having high index surface facets with spherical Pt NPs of same Pt content. Superior catalytic reactivity was realized for Pt TPs with high index surface facets with the yield of aniline in hydrogenation reaction of nitrobenzene increasing from 51% for spherical Pt NPs to 99% for Pt TPs under similar reaction conditions (Table S1, entries 5 & 15).…”