Engineering the Crystal Facet of Monoclinic NiO for Efficient Catalytic Ozonation of Toluene

Hong, Wei; Jiang, Xinxin; An, Chenguang; Huang, Haibao; Zhu, Tianle; Sun, Ye; Wang, Haining; Shen, Fangxia; Li, Xiang

doi:10.1021/acs.est.3c06194

Cited by 9 publications

(2 citation statements)

References 58 publications

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“…To investigate the oxygen vacancy of catalysts, a visual analysis was conducted via EPR testing (Figure a). All samples displayed a symmetric signal at a g-value of 2.003, corresponding that electrons were trapped in oxygen vacancies . The signal intensity followed the order of USY < MnO x -USY < FeO x -USY < MnFeO x < MnFeO x -USY, which showed that MnFeO x -USY had the most oxygen vacancies.…”

Section: Resultsmentioning

confidence: 93%

“…The DRIFT spectra of adsorbed C 7 H 8 over different catalysts exposed to C 7 H 8 /N 2 are presented in Figure a. It can be seen that a sharp band at 1630 cm –1 and the overlap peaks around 1300–1500 cm –1 were belonging to toluene. , Generally, the greater peak intensity corresponded to a higher toluene adsorption content. Hence, the toluene adsorption content increased with the enhancement of interactions between catalytic components (Figures b,c and a) and following in the trend: MnFeO x -USY > MnFeO x > FeO x -USY > MnO x -USY > USY.…”

Section: Resultsmentioning

confidence: 95%

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Catalytic Ozonation of Low Concentration Toluene over MnFeOx-USY Catalyst: Effects of Interactions between Catalytic Components and Introduction of Gas Phase NO_x

An,

Hong,

Jiang

et al. 2024

Environ. Sci. Technol.

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A series of Mn and Fe metal oxide catalysts loaded onto USY, as well as single metal oxides, were prepared and characterized. The effects of interactions between the catalytic components and the introduction of gas phase NO on the catalytic ozonation of toluene were investigated. Characterization showed that there existed strong interactions between MnO x , FeO x , and USY, which enhanced the content of oxygen vacancies and acid sites of the catalysts and thus boosted the generation of reactive oxygen species and the adsorption of toluene. The MnFeO x -USY catalyst with MnO x and FeO x dimetallic oxides exhibited the most excellent performance of catalytic ozonation of toluene. On the other hand, the presence of NO x in reaction gas mixtures significantly promoted both toluene conversion and mineralization, which was attributed to the formation of nitrate species on the catalysts surface and thus the increase of both acid sites and toluene oxidation sites. Meanwhile, the reaction mechanism between O 3 and C 7 H 8 was modified in which the strong interactions between MnO x , FeO x , and USY accelerated the reaction progress based on the L-H route. In addition, the formation of the surface nitrate species not only promoted reaction progress following the L-H route but also resulted in the occurrence of the reaction via the E-R route.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 95%

Catalytic Ozonation of Low Concentration Toluene over MnFeOx-USY Catalyst: Effects of Interactions between Catalytic Components and Introduction of Gas Phase NO_x

An,

Hong,

Jiang

et al. 2024

Environ. Sci. Technol.

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Dopant effects on the environment-dependent chemical properties of NiO(100) surfaces

Wang,

Hensley

2025

Applied Surface Science

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Influence of Co-Ni interactions on catalytic activity of xCo/NiO nanosheet catalysts in situ grown on monolithic cordierite for soot combustion

Gao,

Zhang,

Yang

et al. 2024

Catalysis Today

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Engineering the Crystal Facet of Monoclinic NiO for Efficient Catalytic Ozonation of Toluene

Cited by 9 publications

References 58 publications

Catalytic Ozonation of Low Concentration Toluene over MnFeOx-USY Catalyst: Effects of Interactions between Catalytic Components and Introduction of Gas Phase NO_x

Catalytic Ozonation of Low Concentration Toluene over MnFeOx-USY Catalyst: Effects of Interactions between Catalytic Components and Introduction of Gas Phase NO_x

Dopant effects on the environment-dependent chemical properties of NiO(100) surfaces

Influence of Co-Ni interactions on catalytic activity of xCo/NiO nanosheet catalysts in situ grown on monolithic cordierite for soot combustion

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Engineering the Crystal Facet of Monoclinic NiO for Efficient Catalytic Ozonation of Toluene

Cited by 9 publications

References 58 publications

Catalytic Ozonation of Low Concentration Toluene over MnFeOx-USY Catalyst: Effects of Interactions between Catalytic Components and Introduction of Gas Phase NOx

Catalytic Ozonation of Low Concentration Toluene over MnFeOx-USY Catalyst: Effects of Interactions between Catalytic Components and Introduction of Gas Phase NOx

Dopant effects on the environment-dependent chemical properties of NiO(100) surfaces

Influence of Co-Ni interactions on catalytic activity of xCo/NiO nanosheet catalysts in situ grown on monolithic cordierite for soot combustion

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Product

Resources

About

Catalytic Ozonation of Low Concentration Toluene over MnFeOx-USY Catalyst: Effects of Interactions between Catalytic Components and Introduction of Gas Phase NO_x

Catalytic Ozonation of Low Concentration Toluene over MnFeOx-USY Catalyst: Effects of Interactions between Catalytic Components and Introduction of Gas Phase NO_x