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Surface Modification of Cobalt‐Manganese Mixed Oxide and Its Application for Low‐Temperature Propane Catalytic Combustion
Author(s) -
Liu Yihao,
Zhao Peng,
Sun Liang,
Feng Nengjie,
Wang Lei,
Wan Hui,
Guan Guofeng
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202004530
Subject(s) - catalysis , cobalt , catalytic combustion , manganese , oxide , propane , cobalt oxide , adsorption , inorganic chemistry , chemistry , metal , oxygen , mixed oxide , materials science , organic chemistry
The Co−Mn mixed metal oxide was firstly fabricated using Co(NO 3 ) 2 , KMnO 4 and K 2 CO 3 . The tuned catalysts, donated as xM‐Co 3 Mn 1 (x=0, 0.025, 0.05 and 0.1), were synthesized by selective dissolve method (SD). The physicochemical properties induced by different acid concentrations on catalysts were explored via a series of characterization techniques. Compared with the original material, the catalysts treated by SD had higher advantages in enriching crystal defects, surface Co 2+ and adsorbed oxygen species as well as increasing the specific surface areas (SSA). Among acid‐treated catalysts, 0.05 M‐Co 3 Mn 1 exhibited the best catalytic activity, while the T 50 and T 90 were 71 and 117 °C lower than the original one. Meanwhile, 0.05 M‐Co 3 Mn 1 showed excellent stability and great regeneration ability.