Roles of ZnO in Cu/Core–Shell Al–MCM-41 for NO Reduction by Selective Catalytic Reduction with NH(3): The Effects of Metal Loading and Cu/ZnO Ratio

[Image: see text] Cu–ZnO/Al–MCM-41 catalysts were studied for NO(x) reduction. The total metal loading was varied as 3, 5, and 7 wt %, whereas the Cu-to-ZnO ratio was fixed at 1:1. Too high metal loading led to lower reducibility of Cu(2+), as CuO and ZnO covers on the catalyst surface could partial...

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Autores principales: Imyen, Thidarat, Limphirat, Wanwisa, Rupprechter, Günther, Kongkachuichay, Paisan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6358062/
https://www.ncbi.nlm.nih.gov/pubmed/30729222
http://dx.doi.org/10.1021/acsomega.8b02741
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author Imyen, Thidarat
Limphirat, Wanwisa
Rupprechter, Günther
Kongkachuichay, Paisan
author_facet Imyen, Thidarat
Limphirat, Wanwisa
Rupprechter, Günther
Kongkachuichay, Paisan
author_sort Imyen, Thidarat
collection PubMed
description [Image: see text] Cu–ZnO/Al–MCM-41 catalysts were studied for NO(x) reduction. The total metal loading was varied as 3, 5, and 7 wt %, whereas the Cu-to-ZnO ratio was fixed at 1:1. Too high metal loading led to lower reducibility of Cu(2+), as CuO and ZnO covers on the catalyst surface could partially block pores and hinder gas molecules to access the Cu(2+) ions. Subsequently, Cu loading was fixed at 2.5 wt %, whereas ZnO content was varied as 0, 2.5, and 3.5 wt %. The results demonstrated that 2.5Cu–2.5ZnO catalyst exhibits the best catalytic activity, as it gave the average NO conversion of 87%.
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spelling pubmed-63580622019-02-04 Roles of ZnO in Cu/Core–Shell Al–MCM-41 for NO Reduction by Selective Catalytic Reduction with NH(3): The Effects of Metal Loading and Cu/ZnO Ratio Imyen, Thidarat Limphirat, Wanwisa Rupprechter, Günther Kongkachuichay, Paisan ACS Omega [Image: see text] Cu–ZnO/Al–MCM-41 catalysts were studied for NO(x) reduction. The total metal loading was varied as 3, 5, and 7 wt %, whereas the Cu-to-ZnO ratio was fixed at 1:1. Too high metal loading led to lower reducibility of Cu(2+), as CuO and ZnO covers on the catalyst surface could partially block pores and hinder gas molecules to access the Cu(2+) ions. Subsequently, Cu loading was fixed at 2.5 wt %, whereas ZnO content was varied as 0, 2.5, and 3.5 wt %. The results demonstrated that 2.5Cu–2.5ZnO catalyst exhibits the best catalytic activity, as it gave the average NO conversion of 87%. American Chemical Society 2019-01-14 /pmc/articles/PMC6358062/ /pubmed/30729222 http://dx.doi.org/10.1021/acsomega.8b02741 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Imyen, Thidarat
Limphirat, Wanwisa
Rupprechter, Günther
Kongkachuichay, Paisan
Roles of ZnO in Cu/Core–Shell Al–MCM-41 for NO Reduction by Selective Catalytic Reduction with NH(3): The Effects of Metal Loading and Cu/ZnO Ratio
title Roles of ZnO in Cu/Core–Shell Al–MCM-41 for NO Reduction by Selective Catalytic Reduction with NH(3): The Effects of Metal Loading and Cu/ZnO Ratio
title_full Roles of ZnO in Cu/Core–Shell Al–MCM-41 for NO Reduction by Selective Catalytic Reduction with NH(3): The Effects of Metal Loading and Cu/ZnO Ratio
title_fullStr Roles of ZnO in Cu/Core–Shell Al–MCM-41 for NO Reduction by Selective Catalytic Reduction with NH(3): The Effects of Metal Loading and Cu/ZnO Ratio
title_full_unstemmed Roles of ZnO in Cu/Core–Shell Al–MCM-41 for NO Reduction by Selective Catalytic Reduction with NH(3): The Effects of Metal Loading and Cu/ZnO Ratio
title_short Roles of ZnO in Cu/Core–Shell Al–MCM-41 for NO Reduction by Selective Catalytic Reduction with NH(3): The Effects of Metal Loading and Cu/ZnO Ratio
title_sort roles of zno in cu/core–shell al–mcm-41 for no reduction by selective catalytic reduction with nh(3): the effects of metal loading and cu/zno ratio
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6358062/
https://www.ncbi.nlm.nih.gov/pubmed/30729222
http://dx.doi.org/10.1021/acsomega.8b02741
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