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Mesoporous Assembled Mn 3 O 4 Nanoparticle Networks as Efficient Catalysts for Selective Oxidation of Alkenes and Aryl Alkanes
Author(s) -
Skliri Euaggelia,
Papadogiorgakis Stelios,
Lykakis Ioannis N.,
Armatas Gerasimos S.
Publication year - 2017
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201600460
Subject(s) - catalysis , mesoporous material , nanoparticle , aryl , reactivity (psychology) , heterogeneous catalysis , materials science , oxide , mesoporous organosilica , chemistry , chemical engineering , nanotechnology , mesoporous silica , organic chemistry , alkyl , medicine , alternative medicine , pathology , engineering
The design of nanoscale materials has been considered important for enhancing their surface properties for catalysis. Metal oxide nanoparticles have a large number of exposed surface active sites, but they suffer from low reactivity and poor stability resulting from excessive aggregation into less active microscopic structures. Herein, the synthesis of mesoporous Mn 3 O 4 nanoparticle assemblies by polymer‐assisted self‐assembly is presented and their catalytic activity is demonstrated in the oxidation of various saturated and unsaturated hydrocarbons, including aromatic alkenes and aryl alkanes, in the presence of tert ‐butyl hydroperoxide as a mild oxidant. It is also shown through comparative studies that the high catalytic activity and stability of these Mn 3 O 4 assemblies arise from the unique three‐dimensional open‐pore structure, high internal surface area (90 m 2 g −1 ) and uniform mesopores (≈6.6 nm in size).