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Preparation of nanocrystalline Ni/Al 2 O 3 catalysts with the microemulsion method for dry reforming of methane
Author(s) -
Shiraz Mohammad Hossein Aboonasr,
Rezaei Mehran,
Meshkani Fereshteh
Publication year - 2016
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.22472
Subject(s) - catalysis , carbon dioxide reforming , nanocrystalline material , syngas , materials science , mesoporous material , specific surface area , microemulsion , methane , space velocity , crystallite , scanning electron microscope , temperature programmed reduction , bet theory , chemical engineering , nickel , inorganic chemistry , nuclear chemistry , chemistry , nanotechnology , metallurgy , selectivity , organic chemistry , pulmonary surfactant , composite material , engineering
Mesoporous nanocrystalline nickel‐alumina catalysts with high surface area were prepared by a microemulsion (ME) method and were employed in methane reforming with carbon dioxide for syngas production. The catalysts were characterized by X‐ray diffraction (XRD), Brunauer‐Emmett‐Teller surface area analysis (BET), temperature‐programmed reduction (TPR), temperature‐programmed oxidation (TPO), and scanning electron microscopy (SEM) techniques. The results showed that the catalysts possessed mesoporous structure with high surface area (> 250 m 2 · g −1 ) and small crystallite size (∼5 nm). The catalytic results revealed high activity and stability for the prepared catalysts. In addition, the effect of feed ratio and GHSV on catalytic performance was investigated.