Homogeneous introduction of CeOy into MnOx-based catalyst for oxidation of aromatic VOCs

Jin, Chen; Chen, Xi; Xu, Wenjian; Xu, Zhen; Jia, Hongpeng; Chen, Jing

doi:10.1016/j.apcatb.2017.11.036

Cited by 388 publications

(139 citation statements)

References 59 publications

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“…The textural properties, including the N 2 adsorption‐desorption isotherms and pore‐size distribution curves of Co 3 O 4 , CeO 2 and CeO 2 ‐CoO x catalysts, were presented in Figure a and Figure b, respectively. The nitrogen adsorption‐desorption curves displayed the characteristic type IV isotherms and the H3 hysteresis loops were observed in all samples, which represented the mesoporous character of prepared materials . It was worth noting that the P/P 0 of hysteresis loop for CeO 2 ‐CoO x catalyst was broader than that of Co 3 O 4 and CeO 2 , which indicating more mesoporous in CeO 2 ‐CoO x catalyst .…”

Section: Resultsmentioning

confidence: 82%

Cooperative Effect of the Ce–Co‐O_x for the Catalytic Oxidation of Toluene

et al. 2019

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Pure CeO2, Co3O4 and CeO2‐CoOx 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 CeO2‐CoOx showed the largest concentration of Ce3+, oxygen vacancy and surface adsorbed oxygen due to the generation of more structural defects, resulting in better redox properties. Hence, CeO2‐CoOx exhibited excellent catalytic activity and ideal CO2 selectivity than pure CeO2 and Co3O4.

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Section: Resultsmentioning

confidence: 82%

Cooperative Effect of the Ce–Co‐O_x for the Catalytic Oxidation of Toluene

et al. 2019

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“…[1] Among different strategies proposed to control HCHO emission, heterogeneous catalytic oxidation into harmless byproducts is a most attractive method to remove HCHO with robust performance and low energy consumption. [2,3] In recent years, transition metal oxides such as MnO 2 , [4][5][6] CeO 2 , [7,8] Co 3 O 4 , [9] have shown potential for HCHO catalytic oxidation. Among these, MnO 2 is widely used in HCHO removal via complete transformation of HCHO into CO 2 and H 2 O. Sekine et al [10] indicated that among 13 commercial transition metal oxides, MnO 2 had the best HCHO catalytic activity.…”

Section: Introductionmentioning

confidence: 99%

An Advanced Dual‐Function MnO₂‐Fabric Air Filter Combining Catalytic Oxidation of Formaldehyde and High‐Efficiency Fine Particulate Matter Removal

Dai

Zhu

Yan

et al. 2020

Adv Funct Materials

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Comprehensive treatment of indoor contaminants such as volatile organic compounds (VOCs) and fine particulate matter (PM 2.5) using transition metal oxide catalysts or functional fibrous filters has gained substantial attention recently. However, coupling VOC oxidation catalysts into high-performance filter systems remains a challenge. Herein, an overall solution to strongly bind manganese dioxide (MnO 2) nanocrystals onto polypropylene (PP) nonwoven fabrics is provided. For the first time, uniform heterogeneous nucleation and growth of MnO 2 onto PP nonwoven fabrics using intermediate inorganic nucleation films, including Al 2 O 3 , TiO 2 , and ZnO, formed conformally on the fabrics via atomic layer deposition (ALD) are demonstrated. How different ALD thin films influence the crystallinity, morphology, surface area, and surface oxygen species of the MnO 2 grown ALD-coated PP fibers is further investigated. In addition to uniformity and integrity, ZnO thin films give rise to MnO 2 crystals with the largest fraction of available surface oxygen, enabling 99.5% catalytic oxidation of formaldehyde within 60 min. Moreover, the metal oxide filters provide excellent PM removal efficiencies (ePM), achieving ePM 2.5 90% and ePM 10 98%, respectively, making the approach an outstanding method to produce fully dual-functional filtration media.

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“…11 However, Fe-Mn catalysts were not capable of removing chlorinated pollutants. 29 The active sites of Fe-Mn oxides were easily poisoned due to the strong adsorption of Cl, which could be overcome by the addition of other metals. 12 Recently, CeO 2 was used in the catalytic combustion of low concentration chlorobenzene, owing to its high oxygen storage capacity, abundant oxygen vacancies and strong redox property.…”

Section: Introductionmentioning

confidence: 99%

High-yield synthesis of Ce modified Fe–Mn composite oxides benefitting from catalytic destruction of chlorobenzene

Long

Hong-liang

et al. 2020

RSC Adv.

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Homogeneous introduction of CeOy into MnOx-based catalyst for oxidation of aromatic VOCs

Cited by 388 publications

References 59 publications

Cooperative Effect of the Ce–Co‐O_x for the Catalytic Oxidation of Toluene

Cooperative Effect of the Ce–Co‐O_x for the Catalytic Oxidation of Toluene

An Advanced Dual‐Function MnO₂‐Fabric Air Filter Combining Catalytic Oxidation of Formaldehyde and High‐Efficiency Fine Particulate Matter Removal

High-yield synthesis of Ce modified Fe–Mn composite oxides benefitting from catalytic destruction of chlorobenzene

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Homogeneous introduction of CeOy into MnOx-based catalyst for oxidation of aromatic VOCs

Cited by 388 publications

References 59 publications

Cooperative Effect of the Ce–Co‐Ox for the Catalytic Oxidation of Toluene

Cooperative Effect of the Ce–Co‐Ox for the Catalytic Oxidation of Toluene

An Advanced Dual‐Function MnO2‐Fabric Air Filter Combining Catalytic Oxidation of Formaldehyde and High‐Efficiency Fine Particulate Matter Removal

High-yield synthesis of Ce modified Fe–Mn composite oxides benefitting from catalytic destruction of chlorobenzene

Contact Info

Product

Resources

About

Cooperative Effect of the Ce–Co‐O_x for the Catalytic Oxidation of Toluene

Cooperative Effect of the Ce–Co‐O_x for the Catalytic Oxidation of Toluene

An Advanced Dual‐Function MnO₂‐Fabric Air Filter Combining Catalytic Oxidation of Formaldehyde and High‐Efficiency Fine Particulate Matter Removal