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A Soft Chemistry Route to Selective Nickel‐Based Nanocatalysts with Faceted Morphologies
Author(s) -
Aguilhon Julie,
Thomazeau Cécile,
Boissière Cédric,
Durupthy Olivier,
Sanchez Clément
Publication year - 2013
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201300023
Subject(s) - nanomaterial based catalyst , catalysis , selectivity , nickel , halide , nanoparticle , materials science , nanotechnology , chemical engineering , chemistry , inorganic chemistry , organic chemistry , metallurgy , engineering
A one pot synthesis of alumina supported faceted nickel nanoparticles is carried out following a simple, inexpensive, and sustainable pathway. Tailoring the different chemical steps of catalyst preparation allow the faceted morphology to be maintained while reducing the organic leftover. Moreover, this work shows the key role of the halide ions on the nanoparticles shaping that occurs during the reduction step under H 2 . The predominant role of the {111} facets on the performance of the resulting supported nanocatalysts is also demonstrated. Indeed, catalytic tests in selective hydrogenation of polyunsaturated hydrocarbons performed for both faceted nanocatalysts and reference Ni show a clear selectivity enhancement for the former. The positive impact of {111} faceted Ni catalysts on hydrogenation selectivity is of particular interest to reduce the purification steps after the catalyzed reaction.