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Green Synthesis of Ni–Nb oxide Catalysts for Low‐Temperature Oxidative Dehydrogenation of Ethane
Author(s) -
Zhu Haibo,
Rosenfeld Devon C.,
Anjum Dalaver H.,
Caps Valérie,
Basset JeanMarie
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201403181
Subject(s) - dehydrogenation , calcination , catalysis , oxide , oxalate , inorganic chemistry , materials science , chemical engineering , chemistry , metallurgy , organic chemistry , engineering
The straightforward solid‐state grinding of a mixture of Ni nitrate and Nb oxalate crystals led to, after mild calcination ( T <400 °C), nanostructured Ni–Nb oxide composites. These new materials efficiently catalyzed the oxidative dehydrogenation (ODH) of ethane to ethylene at a relatively low temperature ( T <300 °C). These catalysts appear to be much more stable than the corresponding composites prepared by other chemical methods; more than 90 % of their original intrinsic activity was retained after 50 h with time on‐stream. Furthermore, the stability was much less affected by the Nb content than in composites prepared by classical “wet” syntheses. These materials, obtained in a solvent‐free way, are thus promising green and sustainable alternatives to the current Ni–Nb candidates for the low‐temperature ODH of ethane.