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Cooperative Effect of the Ce–Co‐O x for the Catalytic Oxidation of Toluene
Author(s) -
Zhang Xuejun,
Zhao Jinggang,
Song Zhongxian,
Zhao Heng,
Liu Wei,
Ma Zi'ang,
Zhao Min,
Du Huixian
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201902258
Subject(s) - catalysis , toluene , cobalt , selectivity , redox , oxygen , adsorption , texture (cosmology) , materials science , catalytic oxidation , inorganic chemistry , precipitation , chemistry , organic chemistry , physics , artificial intelligence , meteorology , computer science , image (mathematics)
Pure CeO 2 , Co 3 O 4 and CeO 2 ‐CoO x catalysts were successfully prepared by co‐precipitation method and investigated for toluene oxidation. The introduction of cobalt improved the porous texture and increased the specific surface area of catalysts. The cooperative effect of Co and Ce was characterized by several techniques. The characterization results indicated that CeO 2 ‐CoO x showed the largest concentration of Ce 3+ , oxygen vacancy and surface adsorbed oxygen due to the generation of more structural defects, resulting in better redox properties. Hence, CeO 2 ‐CoO x exhibited excellent catalytic activity and ideal CO 2 selectivity than pure CeO 2 and Co 3 O 4 .