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Recent advances in layered double hydroxides (LDHs) derived catalysts for selective catalytic reduction of NOx with NH3
Yan, Qinghua1; Hou, Xiangting1; Liu, Guocheng1; Li, Yuran2; Zhu, Tingyu2; Xin, Yanjun1; Wang, Qiang3
2020-12-05
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume400Pages:23
AbstractIn recent years, layered double hydroxides (LDHs) derived metal oxides as highly efficient catalysts for selective catalytic reduction of NOx with NH3 (NH3-SCR) have attracted great attention. The high dispersibility and interchangeability of cations within the brucite-like layers make LDHs an indispensable branch of catalytic materials. With the increasingly stringent and ultra-low emission regulations, there is an urgent need for highly efficient and stable low-medium temperature denitration catalysts in markets. In this contribution, we have critically summarized the recent research progress in the LDHs derived NH3-SCR catalysts, including their ability for NOx removal, N-2 selectivity, active temperature window, stability and resistance to poisoning. The advantages and defects of various types of LDHs-derived catalysts are comparatively summarized, and the corresponding modification strategies are discussed. In addition, considering the importance of the catalyst's resistance to poisoning in practical applications, we discuss the poisoning mechanism of each component in flue gases, and provide the corresponding strategies to improve the poisoning resistance of catalysts. Finally, from the perspective of practical applications and operation cost, the regeneration measures of catalysts after poisoning is also discussed. We hope that this work can give timely technical guidance and valuable insights for the applications of LDHs materials in the field of NOx control.
KeywordNH3-SCR Hydrotalcite Layered double oxides (LDOs) Resistance to poisoning Regeneration
DOI10.1016/j.jhazmat.2020.123260
Language英语
WOS KeywordLOW-TEMPERATURE SCR ; MIXED-METAL OXIDES ; SO2 RESISTANCE ; DEACTIVATION MECHANISM ; DENO(X) CATALYSTS ; DESIGN STRATEGIES ; ALKALI-METALS ; V2O5-WO3/TIO2 CATALYSTS ; MNOX-CEO2 CATALYSTS ; CEO2-MOO3 CATALYSTS
Funding ProjectFundamental Research Funds for the Central Universities[2019JQ03015] ; National Natural Science Foundation of China[U1810209] ; Beijing Municipal Education Commission through the Innovative Transdisciplinary Program "Ecological Restoration Engineering" ; Research Foundation for Talented Scholars of Qingdao Agricultural University
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
Funding OrganizationFundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; Beijing Municipal Education Commission through the Innovative Transdisciplinary Program "Ecological Restoration Engineering" ; Research Foundation for Talented Scholars of Qingdao Agricultural University
WOS IDWOS:000572999700003
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42178
Collection中国科学院过程工程研究所
Corresponding AuthorXin, Yanjun; Wang, Qiang
Affiliation1.Qingdao Agr Univ, Coll Resources & Environm, Qingdao Engn Res Ctr Rural Environm, Qingdao 266109, Peoples R China
2.Chinese Acad Sci, Res Ctr Proc Pollut Control, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Beijing Forestry Univ, Coll Environm Sci & Engn, 35 Qinghua East Rd, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Yan, Qinghua,Hou, Xiangting,Liu, Guocheng,et al. Recent advances in layered double hydroxides (LDHs) derived catalysts for selective catalytic reduction of NOx with NH3[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,400:23.
APA Yan, Qinghua.,Hou, Xiangting.,Liu, Guocheng.,Li, Yuran.,Zhu, Tingyu.,...&Wang, Qiang.(2020).Recent advances in layered double hydroxides (LDHs) derived catalysts for selective catalytic reduction of NOx with NH3.JOURNAL OF HAZARDOUS MATERIALS,400,23.
MLA Yan, Qinghua,et al."Recent advances in layered double hydroxides (LDHs) derived catalysts for selective catalytic reduction of NOx with NH3".JOURNAL OF HAZARDOUS MATERIALS 400(2020):23.
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