Optimizing the CeO2-MnO2 interface via H2O2 etching for surface lattice oxygen activation in the plasma catalytic degradation of trimethylamine

Feng, Wenji; He, Feiyang; Chen, Xinru; Jiang, Boqiong; Wang, Haiqiang; Wu, Zhongbiao

doi:10.1016/j.cej.2024.150804

Cited by 8 publications

(1 citation statement)

References 69 publications

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“…Besides, the weak acidity of H 2 O 2 was reported as the reason for reconstructing the pristine CuO nanoflower into nanosheet with preferentially exposed (110) surface . Moreover, the surfaces of catalysts such as Mn 2 O 3 , CeO 2 –MnO 2 , MoS 2 , among others have also been effectively modified through H 2 O 2 etching. − …”

Section: Results and Discussionmentioning

confidence: 99%

Refining Metal–Support Interactions via Surface Modification of Irreducible Oxide Support for Enhanced Complete Propane Oxidation

You,

Xu,

Tang

et al. 2024

ACS Catal.

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Regulating the metal−support interaction (MSI) of supported metal catalysts is critical to enhancing their catalytic performance. However, achieving direct control over the MSI by tuning the properties of irreducible oxide-supported supports remains a challenging task. In this study, we propose a surface modification strategy to refine the MSI on an irreducible MgAl 2 O 4supported Pt catalyst. By employing a facile H 2 O 2 treatment to modify the support surface, the number of Brønsted acid sites on MgAl 2 O 4 was successfully reduced. The MSI between Pt and MgAl 2 O 4 is appropriately weakened, resulting in a higher proportion of metallic Pt species, while maintaining a high level of dispersion during the reaction. These metallic Pt species enhance the activation ability of C−H bonds in propane and facilitate the rapid consumption of intermediate species. Consequently, the complete propane oxidation reaction performance of H 2 O 2 -treated Pt/MgAl 2 O 4 is significantly promoted, exhibiting an impressive increase in intrinsic activity of over 32-fold compared to traditional Pt/MgAl 2 O 4 .

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Section: Results and Discussionmentioning

confidence: 99%

Refining Metal–Support Interactions via Surface Modification of Irreducible Oxide Support for Enhanced Complete Propane Oxidation

You,

Xu,

Tang

et al. 2024

ACS Catal.

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Ce‐Pr Co‐doped Co₃O₄ with Enriched Oxygen Vacancies for the Efficient Decomposition of N₂O

Sun,

Wu,

Zhang

et al. 2024

ChemCatChem

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Nitrous oxide (N2O) has gained increasing attention as a non‐carbon dioxide greenhouse gas, and catalytic decomposition is an effective method for mitigating its emissions. In this study, Ce‐Pr Co‐doped Co3O4 was synthesized via a coprecipitation method and used for the catalytic decomposition of N2O. The experimental results revealed that the N2O decomposition achieved 100% conversion at 400 °C on the catalyst with a Pr/Ce/Co molar ratio of 0.02:0.2:1, exhibiting an 80 °C decrease of T100 compared with that of Co3O4. The introduction of Ce reduced the size and crystallization of Co3O4 particles, increased the activity of the lattice oxygen of Co3O4, and facilitated the formation of oxygen vacancies, thereby enhancing the activation of N2O. However, the introduction of Ce inhibited the crystallization of Co3O4 and the surface coverage of CeO2 decreased the exposure degree of N2O molecules to the Co3O4 surface. Co‐doping strategy of Ce‐Pr was performed to alleviate the negative effects of ceria. Consequently, the incorporation of Ce and Pr species enhanced the redox properties of Co3O4, leading to remarkable catalytic performance of N2O decomposition. This study elucidated the interaction between Ce and Pr dopants and Co3O4, and encouraged more attention on designing novel catalysts for N2O mitigation.

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A core-shell structured crystalline@amorphous MnO2 with enhanced plasma catalytic degradation performance for volatile organic sulfur compounds and degradation mechanism exploration

Feng,

Wang,

Liu

et al. 2025

Journal of Hazardous Materials

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Optimizing the CeO2-MnO2 interface via H2O2 etching for surface lattice oxygen activation in the plasma catalytic degradation of trimethylamine

Cited by 8 publications

References 69 publications

Refining Metal–Support Interactions via Surface Modification of Irreducible Oxide Support for Enhanced Complete Propane Oxidation

Refining Metal–Support Interactions via Surface Modification of Irreducible Oxide Support for Enhanced Complete Propane Oxidation

Ce‐Pr Co‐doped Co₃O₄ with Enriched Oxygen Vacancies for the Efficient Decomposition of N₂O

A core-shell structured crystalline@amorphous MnO2 with enhanced plasma catalytic degradation performance for volatile organic sulfur compounds and degradation mechanism exploration

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Optimizing the CeO2-MnO2 interface via H2O2 etching for surface lattice oxygen activation in the plasma catalytic degradation of trimethylamine

Cited by 8 publications

References 69 publications

Refining Metal–Support Interactions via Surface Modification of Irreducible Oxide Support for Enhanced Complete Propane Oxidation

Refining Metal–Support Interactions via Surface Modification of Irreducible Oxide Support for Enhanced Complete Propane Oxidation

Ce‐Pr Co‐doped Co3O4 with Enriched Oxygen Vacancies for the Efficient Decomposition of N2O

A core-shell structured crystalline@amorphous MnO2 with enhanced plasma catalytic degradation performance for volatile organic sulfur compounds and degradation mechanism exploration

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Product

Resources

About

Ce‐Pr Co‐doped Co₃O₄ with Enriched Oxygen Vacancies for the Efficient Decomposition of N₂O