Home Journals Articles Updates About
CN
image
收藏切换
Performance and mechanism of Ni-Ce composite synergistically promoting CO-selective catalytic reduction of NO
收藏切换
PDF
Qian MA1, 2, He WANG1, 2, Jia-xin QU1, 2, Shuo JI1, 2, Wei WANG3, Yu HUANG4, Xiao-qing DANG1, *
China Environmental Science | 2025, 45(2) : 671 - 681
Less
收藏切换
China Environmental Science | 2025, 45(2): 671-681
• Air Pollution Control •
Performance and mechanism of Ni-Ce composite synergistically promoting CO-selective catalytic reduction of NO
Full
Qian MA1, 2, He WANG1, 2, Jia-xin QU1, 2, Shuo JI1, 2, Wei WANG3, Yu HUANG4, Xiao-qing DANG1, *
Affiliations
  • 1.School of Environment & Municipal Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China
  • 2.Key Laboratory of Northwest Water Resource, Environment, and Ecology, Ministry of Education, Key Laboratory of Environmental Engineering of Shaanxi Province, Xi’an 710055, China
  • 3.Xi’an Institute for Innovative Earth Environment Research, Xi’an 710061, China
  • 4.State Key Laboratory of Loess and Quaternary Geology, Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China
Published: 2025-02-20
Outline
收藏切换

The bimetallic NiCe-x(x=1:3, 2:2, 3:1, 0:1, 1:0) catalysts were successfully synthesized using the hydrothermal method and subsequently evaluated for their efficacy in the selective catalytic reduction of NO by CO(CO-SCR). The results indicated that compared to NiO and CeO2 catalysts, the NiCe composite catalyst exhibited superior performance in simultaneously removing low-temperature CO and NO. Superior performance was demonstrated by the NiCe composite catalyst with a 3:1 ratio, which achieved over 90% NO conversion over an extensive temperature range of 200~450℃ and exhibited strong resistance to SO2 and H2O. Characterization indicated that the existence of Ni and Ce ions led to an increased specific surface area and accelerated redox cycling (Ce3++Ni3+↔Ce4++Ni2+), which improved denitrification activity. In-situ DRIFTS findings confirmed that adsorbed NCO played a crucial role as an intermediate in the CO-SCR process employing NiCe-3:1.

NiCe compound  /  CO-SCR  /  oxygen vacancies  /  mechanism of reaction
Qian MA, He WANG, Jia-xin QU, Shuo JI, Wei WANG, Yu HUANG, Xiao-qing DANG. Performance and mechanism of Ni-Ce composite synergistically promoting CO-selective catalytic reduction of NO[J]. China Environmental Science, 2025 , 45 (2) : 671 -681 .
Appendix
Less
Year 2025 volume 45 Issue 2
PDF
61
32
Cite this Article
BibTeX
Article Info
  • Receive Date：2024-06-28
  • Online Date：2026-03-17
  • Published：2025-02-20
Article Data
Affiliations
History
  • Received：2024-06-28
Funding
Affiliations
    1.School of Environment & Municipal Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China
    2.Key Laboratory of Northwest Water Resource, Environment, and Ecology, Ministry of Education, Key Laboratory of Environmental Engineering of Shaanxi Province, Xi’an 710055, China
    3.Xi’an Institute for Innovative Earth Environment Research, Xi’an 710061, China
    4.State Key Laboratory of Loess and Quaternary Geology, Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China
References
Share
https://castjournals.cast.org.cn/joweb/zghjkx/EN/
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House