The Copoisoning Effects of Antimony and Ammonium Bisulfate on Ceria-Based Catalysts for NOx Reduction DOI

Wenhua Wang,

Zhanpeng Luo,

Guohua Zhao

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(43), P. 18380 - 18389

Published: Oct. 19, 2024

In this study, the underlying influence mechanism between Sb and ABS on ceria-based SCR catalysts has been disclosed. Experimental results indicate that there exists a copoisoning effect antimony (Sb) ammonium bisulfate (ABS) activity, which significantly suppresses NO conversion below about 40% within whole investigated temperature window. Characterization deduced should be derived from existing strong interactions ABS. Inherently, formed not only result in pronounced deactivation structural properties redox capacity but also counteract acidity enhancement provided by sulfate species Importantly, restrained mobility of active oxygen would hinder reaction NH4+ ABS, while narrowed pore size existence could strengthen thermal stability therefore resulting more serious performances.

Language: Английский

Improving synergistic catalysis of CuOx/AgOy/TiO2 for promoting selective catalytic oxidation of ammonia DOI
Junfei Chen, Zhihao Yu, Jinwei Wu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161201 - 161201

Published: March 1, 2025

Language: Английский

Citations

0
CePO4 supported Cr catalyst with superior sulfur tolerance for selective catalytic oxidation of ammonia DOI
Xiaoqiang Wang, Fangyuan Zhou, Yue Liu

et al.

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: unknown, P. 110420 - 110420

Published: Sept. 1, 2024

Language: Английский

Citations

1
The Copoisoning Effects of Antimony and Ammonium Bisulfate on Ceria-Based Catalysts for NOx Reduction DOI

Wenhua Wang,

Zhanpeng Luo,

Guohua Zhao

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(43), P. 18380 - 18389

Published: Oct. 19, 2024

In this study, the underlying influence mechanism between Sb and ABS on ceria-based SCR catalysts has been disclosed. Experimental results indicate that there exists a copoisoning effect antimony (Sb) ammonium bisulfate (ABS) activity, which significantly suppresses NO conversion below about 40% within whole investigated temperature window. Characterization deduced should be derived from existing strong interactions ABS. Inherently, formed not only result in pronounced deactivation structural properties redox capacity but also counteract acidity enhancement provided by sulfate species Importantly, restrained mobility of active oxygen would hinder reaction NH4+ ABS, while narrowed pore size existence could strengthen thermal stability therefore resulting more serious performances.

Language: Английский

Citations

1