Ce<sub>1‐x</sub>Mn<sub>x</sub>VO<sub>4</sub> with Improved Activity for Low‐Temperature Catalytic Reduction of NO with NH<sub>3</sub>

Novel Ce<sub>1-x</sub>Mn<sub>x</sub>VO<sub>4</sub> catalysts prepared via modified hydrothermal synthesis were used in selective catalytic reduction of NO using NH<sub>3</sub> (NH<sub>3</sub>-SCR). The Ce<sub>1-x</sub>Mn<sub>x</sub>VO<sub>4</sub> catalysts displayed optimum NO removal efficiency at 250 °C. Physicochemical properties including crystal type, morphology, particle size, elemental composition, BET surface area, chemical bond, and valence state were studied by XRD, TEM, EDS, N<sub>2</sub> adsorption-desorption, Raman spectroscopy, and XPS. Specific properties such as reduction property and acid sites were studied by H<sub>2</sub>-TPR and NH<sub>3</sub>-TPD. The in-situ DRIFTS results revealed that NH<sub>3</sub>-SCR over Ce<sub>0.5</sub>Mn<sub>0.5</sub>VO<sub>4</sub> follows the Eley-Rideal mechanism. The experimental results showed that doped manganese replaces the Ce position in CeVO<sub>4</sub>. The Mn-O-Ce interaction may increase the contents of oxygen defects and Brønsted acid sites, thus leading to enhanced activity.

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Publication Details

Journal
Chemistry - An Asian Journal
Published
2025-01-27
DOI
https://doi.org/10.1002/asia.202401341
Citations
1
Primary Topic
Catalytic Processes in Materials Science
Type
article
Field-Weighted Citation Impact
0.52

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article

Ce1‐xMnxVO4 with Improved Activity for Low‐Temperature Catalytic Reduction of NO with NH3

Zhen Ma, Heping Cheng, S. J. Wu, Li Wang et al.
1 citations
Chemistry - An Asian Journal
Catalytic Processes in Materials Science
0.52
article

Ce1‐xMnxVO4 with Improved Activity for Low‐Temperature Catalytic Reduction of NO with NH3

Zhen Ma, Heping Cheng, S. J. Wu, Li Wang, Long Chen, Junbo Wang, Hui Xu, Fei Huang
article en
1 citations

Abstract

Novel Ce<sub>1-x</sub>Mn<sub>x</sub>VO<sub>4</sub> catalysts prepared via modified hydrothermal synthesis were used in selective catalytic reduction of NO using NH<sub>3</sub> (NH<sub>3</sub>-SCR). The Ce<sub>1-x</sub>Mn<sub>x</sub>VO<sub>4</sub> catalysts displayed optimum NO removal efficiency at 250 °C. Physicochemical properties including crystal type, morphology, particle size, elemental composition, BET surface area, chemical bond, and valence state were studied by XRD, TEM, EDS, N<sub>2</sub> adsorption-desorption, Raman spectroscopy, and XPS. Specific properties such as reduction property and acid sites were studied by H<sub>2</sub>-TPR and NH<sub>3</sub>-TPD. The in-situ DRIFTS results revealed that NH<sub>3</sub>-SCR over Ce<sub>0.5</sub>Mn<sub>0.5</sub>VO<sub>4</sub> follows the Eley-Rideal mechanism. The experimental results showed that doped manganese replaces the Ce position in CeVO<sub>4</sub>. The Mn-O-Ce interaction may increase the contents of oxygen defects and Brønsted acid sites, thus leading to enhanced activity.

Chemistry - An Asian JournalVol. 20(6)
Fudan University (CN), Huangshan University (CN), Zhejiang Shuren University (CN), Shanghai Institute of Pollution Control and Ecological Security
Anhui Provincial Department of Education
Clean water and sanitation
Openalex Percentile: Top 42%
Catalytic Processes in Materials Science
0.52
DOIOpen Access PDFOpenAlex
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Ce<sub>1‐x</sub>Mn<sub>x</sub>VO<sub>4</sub> with Improved Activity for Low‐Temperature Catalytic Reduction of NO with NH<sub>3</sub> — Zhen Ma, Heping Cheng, et al. · Chemistry - An Asian Journal (2025) | TGRS Research Map | TGRS