首页|Strong water-resistant Co-Mn solid solution derived from bimetallic metal-organic frameworks for catalytic destruction of toluene
Strong water-resistant Co-Mn solid solution derived from bimetallic metal-organic frameworks for catalytic destruction of toluene
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The construction of Co-Mn mixed-metal oxide catalysts derived from bimetallic metal-organic frameworks(MOFs)has great significance for catalytic destruction of toluene.Hence,a series of CoaMnbOx-MOFs with different physicochemical properties were successfully synthesized via pyrolysis of Co-Mn bimetallic MOFs.Attributing to the higher specific surface area,more active sites(Co3+and Mn3+),stronger reducibility,and abundant defect sites,the as-prepared Co1Mn1Ox-MOFs displayed an optimal catalytic performance,especially the excellent water vapor resistance.The result of the in situ diffuse reflectance infrared Fourier transform spectroscopy demonstrated that toluene can be degraded at relatively low temperatures(＜100 ℃).Benzyl alcohol,benzaldehyde,benzoic acid,and maleic an-hydride were the main intermediate products in toluene degradation process.This work reveals the value of bimetallic MOFs derived Co-Mn oxides for toluene oxidation and presents a novel avenue for designing mixed-metal oxide catalysts with potential applications in volatile organic compounds(VOCs)catalytic oxidation.
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