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Tetrahedral Nickel(II) Phosphosilicate Single‐Site Selective Propane Dehydrogenation Catalyst
Author(s) -
Zhang Guanghui,
Yang Ce,
Miller Jeffrey T.
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201701815
Subject(s) - dehydrogenation , catalysis , selectivity , propane , nickel , inorganic chemistry , chemistry , alkane , materials science , photochemistry , organic chemistry
Abstract Silica‐supported Ni catalysts usually show poor stability, low selectivity, and short lifetime in high‐temperature alkane dehydrogenation reactions owing to the reduction to Ni 0 nanoparticles under the reaction conditions. The introduction of a phosphate ligand to silica‐supported Ni II provided single‐site tetrahedral Ni II phosphosilicate as a stable and selective propane dehydrogenation catalyst. The Ni II −OSi bonds activate the C−H bonds of propane and make the Ni II sites catalytically active, whereas the Ni−OP bonds prevent the reduction of Ni II to Ni 0 under the dehydrogenation conditions and help to achieve high stability and selectivity.