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Structure and Catalytic Performance of Mg‐SBA‐15‐Supported Nickel Catalysts for CO 2 Reforming of Methane to Syngas
Author(s) -
Zhang H.,
Li M.,
Xiao P.,
Liu D.,
Zou C. J.
Publication year - 2013
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201300006
Subject(s) - catalysis , syngas , physisorption , methane , temperature programmed reduction , mesoporous material , nickel , carbon dioxide reforming , desorption , chemistry , inorganic chemistry , particle size , nuclear chemistry , materials science , chemical engineering , organic chemistry , adsorption , engineering
A series of Mg‐modified SBA‐15 mesoporous silicas with different MgO contents were successfully synthesized by a simple one‐pot synthesis method and further impregnated with Ni. The Mg‐modified SBA‐15 materials and supported Ni catalysts were characterized by N 2 physisorption (BET), X‐ray diffraction (XRD), temperature‐programmed desorption of CO 2 (CO 2 ‐TPD), temperature‐programmed H 2 reduction (H 2 ‐TPR), and temperature‐programmed hydrogenation (TPH) techniques and used for methane dry reforming with CO 2 . CO 2 ‐TPD results proved that the addition of Mg increased the total amount of basic sites which was responsible for the enhanced catalytic activity over the Mg‐modified Ni catalyst. The excellent catalytic stability of Ni/8Mg‐SBA‐15 was ascribed to less coking and higher stability of the Ni particle size due to the introduction of Mg.