Highly improved acetone oxidation performance over mesostructured CuxCe1−xO2 hollow nanospheres

Chen, Min; Wang, Jinguo; Sun, Honghua; Hu, Tianxiang; Men, Yongfeng

doi:10.1039/d2nj00078d

Cited by 4 publications

(1 citation statement)

References 44 publications

(235 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Acetone is a kind of oxygenated volatile organic compound (OVOC) with high reactivity that mainly comes from different industries such as pharmaceuticals, plastics, and printing, and which greatly harms human health and the environment. − Several of techniques (e.g., catalytic oxidation, condensation, adsorption, and biotechnology) have been applied to remove OVOCs. ,, Among these, catalytic oxidation is regarded as one of the most efficient and promising technologies in OVOC destruction owing to its advantages of low energy consumption and high efficiency. − It is necessary to develop economic and highly active catalysts that are crucial for catalytic oxidation technology. − …”

Section: Introductionmentioning

confidence: 99%

Tuning the Surface Mn/Al Ratio and Crystal Crystallinity of Mn–Al Oxides by Calcination Temperature for Excellent Acetone Low-Temperature Mineralization

Lǐ

Zheng

et al. 2023

ACS EST Eng.

View full text Add to dashboard Cite

Here, Mn−Al oxides with the strengthened synergistic effect of Mn and Al species were fabricated by facilely adjusting the calcination temperature with the hydrolysis-driven redox-precipitation method. Results demonstrated that the surface Mn/Al ratio and KMn 8 O 16 phase can be effectively tamed under different calcination temperatures, which obviously alter the CO 2 selectivity, reaction rate, and stability of Mn−Al oxides for catalytic oxidation of acetone, among which the Mn 5 Al-350 catalyst exhibits the best catalytic performance (90% of acetone converted at 159 °C) with CO 2 selectivity higher than 99.5%, mainly owing to its higher surface Mn/Al ratio and weaker Mn−O bond with more Mn 3+ as compared to Mn 5 Al-250, Mn 5 Al-450, and Mn 5 Al-550. Although a decrease in the consumption rate of acetic acid in the presence of 3.0 vol % H 2 O leads to the slight reduction of acetone conversion and CO 2 yield, Mn 5 Al-350 still exhibits a superior catalytic stability. The reaction intermediates including acetaldehyde, ethanol, acetic acid, and formic acid species before total mineralization are determined by proton transfer reaction−mass spectrometry, theoretical calculations, and in situ DRIFTS. Theoretical calculations also reveal that the p-orbital interaction of C with a certain anisotropy leads to a weak catalytic effect in the process of acetic acid decomposition as the rate-limiting step.

show abstract

Section: Introductionmentioning

confidence: 99%

Tuning the Surface Mn/Al Ratio and Crystal Crystallinity of Mn–Al Oxides by Calcination Temperature for Excellent Acetone Low-Temperature Mineralization

Lǐ

Zheng

et al. 2023

ACS EST Eng.

View full text Add to dashboard Cite

show abstract

Regulation of the existing state of Cu species in high water-toletant CuOx-Mn3O4 for VOCs mixtrue catalytic oxidation

Lei,

Chen,

Bai

et al. 2024

Chemical Engineering Science

View full text Add to dashboard Cite

The structure activity relationship of promoted La doped Ni-CeO2 catalysts prepared by continuous-flow microreactor for low temperature CO2 methanation

Ullah,

Pan,

Xue

et al. 2025

Fuel

View full text Add to dashboard Cite

Highly improved acetone oxidation performance over mesostructured Cu_xCe_1−xO₂ hollow nanospheres

Abstract: Hierarchical bimetal oxide solid solution in hollow-interior nanosphere with mesoporous shells has versatile applications in environmental protection, but its synthesis still encounters great challenges. Herein, mesostructured CuxCe1-xO2 hollow nanospheres with...

Cited by 4 publications

References 44 publications

Tuning the Surface Mn/Al Ratio and Crystal Crystallinity of Mn–Al Oxides by Calcination Temperature for Excellent Acetone Low-Temperature Mineralization

Tuning the Surface Mn/Al Ratio and Crystal Crystallinity of Mn–Al Oxides by Calcination Temperature for Excellent Acetone Low-Temperature Mineralization

Regulation of the existing state of Cu species in high water-toletant CuOx-Mn3O4 for VOCs mixtrue catalytic oxidation

The structure activity relationship of promoted La doped Ni-CeO2 catalysts prepared by continuous-flow microreactor for low temperature CO2 methanation

Contact Info

Product

Resources

About