Activating low-temperature diesel oxidation by single-atom Pt on TiO(2) nanowire array

Supported metal single atom catalysts (SACs) present an emerging class of low-temperature catalysts with high reactivity and selectivity, which, however, face challenges on both durability and practicality. Herein, we report a single-atom Pt catalyst that is strongly anchored on a robust nanowire fo...

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Autores principales: Hoang, Son, Guo, Yanbing, Binder, Andrew J., Tang, Wenxiang, Wang, Sibo, Liu, Jingyue (Jimmy), Huan, Tran D., Lu, Xingxu, Wang, Yu, Ding, Yong, Kyriakidou, Eleni A., Yang, Ji, Toops, Todd J., Pauly, Thomas J., Ramprasad, Rampi, Gao, Pu-Xian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7044320/
https://www.ncbi.nlm.nih.gov/pubmed/32102998
http://dx.doi.org/10.1038/s41467-020-14816-w
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author Hoang, Son
Guo, Yanbing
Binder, Andrew J.
Tang, Wenxiang
Wang, Sibo
Liu, Jingyue (Jimmy)
Huan, Tran D.
Lu, Xingxu
Wang, Yu
Ding, Yong
Kyriakidou, Eleni A.
Yang, Ji
Toops, Todd J.
Pauly, Thomas J.
Ramprasad, Rampi
Gao, Pu-Xian
author_facet Hoang, Son
Guo, Yanbing
Binder, Andrew J.
Tang, Wenxiang
Wang, Sibo
Liu, Jingyue (Jimmy)
Huan, Tran D.
Lu, Xingxu
Wang, Yu
Ding, Yong
Kyriakidou, Eleni A.
Yang, Ji
Toops, Todd J.
Pauly, Thomas J.
Ramprasad, Rampi
Gao, Pu-Xian
author_sort Hoang, Son
collection PubMed
description Supported metal single atom catalysts (SACs) present an emerging class of low-temperature catalysts with high reactivity and selectivity, which, however, face challenges on both durability and practicality. Herein, we report a single-atom Pt catalyst that is strongly anchored on a robust nanowire forest of mesoporous rutile titania grown on the channeled walls of full-size cordierite honeycombs. This Pt SAC exhibits remarkable activity for oxidation of CO and hydrocarbons with 90% conversion at temperatures as low as ~160 (o)C under simulated diesel exhaust conditions while using 5 times less Pt-group metals than a commercial oxidation catalyst. Such an excellent low-temperature performance is sustained over hydrothermal aging and sulfation as a result of highly dispersed and isolated active single Pt ions bonded at the Ti vacancy sites with 5 or 6 oxygen ions on titania nanowire surfaces.
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spelling pubmed-70443202020-03-04 Activating low-temperature diesel oxidation by single-atom Pt on TiO(2) nanowire array Hoang, Son Guo, Yanbing Binder, Andrew J. Tang, Wenxiang Wang, Sibo Liu, Jingyue (Jimmy) Huan, Tran D. Lu, Xingxu Wang, Yu Ding, Yong Kyriakidou, Eleni A. Yang, Ji Toops, Todd J. Pauly, Thomas J. Ramprasad, Rampi Gao, Pu-Xian Nat Commun Article Supported metal single atom catalysts (SACs) present an emerging class of low-temperature catalysts with high reactivity and selectivity, which, however, face challenges on both durability and practicality. Herein, we report a single-atom Pt catalyst that is strongly anchored on a robust nanowire forest of mesoporous rutile titania grown on the channeled walls of full-size cordierite honeycombs. This Pt SAC exhibits remarkable activity for oxidation of CO and hydrocarbons with 90% conversion at temperatures as low as ~160 (o)C under simulated diesel exhaust conditions while using 5 times less Pt-group metals than a commercial oxidation catalyst. Such an excellent low-temperature performance is sustained over hydrothermal aging and sulfation as a result of highly dispersed and isolated active single Pt ions bonded at the Ti vacancy sites with 5 or 6 oxygen ions on titania nanowire surfaces. Nature Publishing Group UK 2020-02-26 /pmc/articles/PMC7044320/ /pubmed/32102998 http://dx.doi.org/10.1038/s41467-020-14816-w Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Hoang, Son
Guo, Yanbing
Binder, Andrew J.
Tang, Wenxiang
Wang, Sibo
Liu, Jingyue (Jimmy)
Huan, Tran D.
Lu, Xingxu
Wang, Yu
Ding, Yong
Kyriakidou, Eleni A.
Yang, Ji
Toops, Todd J.
Pauly, Thomas J.
Ramprasad, Rampi
Gao, Pu-Xian
Activating low-temperature diesel oxidation by single-atom Pt on TiO(2) nanowire array
title Activating low-temperature diesel oxidation by single-atom Pt on TiO(2) nanowire array
title_full Activating low-temperature diesel oxidation by single-atom Pt on TiO(2) nanowire array
title_fullStr Activating low-temperature diesel oxidation by single-atom Pt on TiO(2) nanowire array
title_full_unstemmed Activating low-temperature diesel oxidation by single-atom Pt on TiO(2) nanowire array
title_short Activating low-temperature diesel oxidation by single-atom Pt on TiO(2) nanowire array
title_sort activating low-temperature diesel oxidation by single-atom pt on tio(2) nanowire array
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7044320/
https://www.ncbi.nlm.nih.gov/pubmed/32102998
http://dx.doi.org/10.1038/s41467-020-14816-w
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