DICP OpenIR
Insight of platinum poisoning Cu/SAPO-34 during NH3-SCR and its promotion on catalysts regeneration after hydrothermal treatment
Yu, Tie1,2,4; Xu, Minhong1; Huang, Yu1; Wang, Jianqiang1; Wang, Jun1; Lv, Liangfang1; Qi, Gongshin4; Li, Wei4; Shen, Meiqing1,3
KeywordNh3-scr Sapo-34 Hydrothermal Treatment Regeneration Platinum
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
2017-05-05
DOI10.1016/j.apcatb.2016.12.007
Volume204Pages:525-536
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordIN-SITU DRIFTS ; ACTIVE-SITES ; REDUCTION ; NOX ; NH3 ; AMMONIA ; STABILITY ; CU-SSZ-13 ; OXIDATION ; SCR
AbstractThis study mainly focused on selective catalytic reduction of air pollutants NOx by ammonia (NH3-SCR), and a series of Pt impregnated Cu/SAPO-34 (homemade) samples were employed to elucidate its negative impact on DeNOx activity and hydrothermal treatment's acceleration on NH3-SCR activity resurgence. Firstly, XRD, NH3-TPD and DRIFTs were performed to examine platinum interaction with zeolites structure and contribution to acidity. Then, Pt inhibition on NH3-SCR activity Was evaluated and its impact on reaction network, including ammonia oxidation, NO oxidation and NO + NH3, was concluded based on gas switching tests. H-2-TPR and EPR further reflected various Cu species coordination and redox capacity variation caused by platinum doping. It was intriguing to find out that the further hydrothermal treatment benefited rejuvenation of Pt-poisoned Cu/SAPO-34 and even activity enhancement from Pt presence under the condition of zeolites structure integrity. Hydrothermal treatment induced platinum sintering and STEM illustrated platinum species combined with copper oxides and generated oxo-complexes, weakening ammonia oxidation. And Pt presence promoted copper oxides further dispersion during hydrothermal treatment. Finally, platinum poisoning on Cu/SAPO-34 and its regeneration after hydrothermal treatment were concluded to indicate their application potential. (C) 2016 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000392681000052
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/151886
Collection中国科学院大连化学物理研究所
Affiliation1.Tianjin Univ, Sch Chem Engn &Technol, Key Lab Green Chem Technol State Educ Minist, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China
3.Tianjin Univ, State Key Lab Engines, Tianjin 300072, Peoples R China
4.Gen Motors Global Res & Dev, Chem Sci & Mat Syst Lab, 3500 Mound Rd, Warren, MI 48090 USA
Recommended Citation
GB/T 7714
Yu, Tie,Xu, Minhong,Huang, Yu,et al. Insight of platinum poisoning Cu/SAPO-34 during NH3-SCR and its promotion on catalysts regeneration after hydrothermal treatment[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017,204:525-536.
APA Yu, Tie.,Xu, Minhong.,Huang, Yu.,Wang, Jianqiang.,Wang, Jun.,...&Shen, Meiqing.(2017).Insight of platinum poisoning Cu/SAPO-34 during NH3-SCR and its promotion on catalysts regeneration after hydrothermal treatment.APPLIED CATALYSIS B-ENVIRONMENTAL,204,525-536.
MLA Yu, Tie,et al."Insight of platinum poisoning Cu/SAPO-34 during NH3-SCR and its promotion on catalysts regeneration after hydrothermal treatment".APPLIED CATALYSIS B-ENVIRONMENTAL 204(2017):525-536.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yu, Tie]'s Articles
[Xu, Minhong]'s Articles
[Huang, Yu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yu, Tie]'s Articles
[Xu, Minhong]'s Articles
[Huang, Yu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yu, Tie]'s Articles
[Xu, Minhong]'s Articles
[Huang, Yu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.