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Unraveling the Role of Site Isolation and Support for Semihydrogenation of Phenylacetylene
Author(s) -
Goud Devender,
Cherevotan Arjun,
MaligalGanesh Raghu,
Ray Bitan,
Ramarao S. D.,
Raj Jithu,
Peter Sebastian C.
Publication year - 2019
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201901401
Subject(s) - phenylacetylene , bimetallic strip , intermetallic , materials science , catalysis , nanomaterials , transition metal , chemical engineering , selectivity , alloy , mesoporous silica , styrene , mesoporous material , nanoparticle , nanotechnology , chemistry , organic chemistry , copolymer , metallurgy , composite material , polymer , engineering
Intermetallic compounds (IMCs) composed of transition metals and post‐transition metals function as superior heterogeneous catalysts in comparison to their monometallic and bimetallic alloy counterparts. Rendering IMCs in their nanomaterial iterations further enhances their efficiency. Herein, we demonstrate the role of PdIn as well‐dispersed intermetallic nanoparticles (IMNPs) for the semihydrogenation of phenylacetylene selectively to styrene at ambient conditions. Higher selectivity of PdIn was explained with the help DOS calculations. We have explored the role of a few well‐known silica‐based supports such as SBA‐15 and MCM‐41, providing insight into how they affect catalysis. As an additional support we have explored previously reported JNC‐1, a mesoporous carbon material obtained via a templated strategy using SBA‐15. PdIn supported on SBA‐15 and JNC‐1 displayed the best dispersion, while also exhibiting the most catalytic activity due to the unique nature of the porous structure.