A Synthetic Pseudo-Rh: NO(x) Reduction Activity and Electronic Structure of Pd–Ru Solid-solution Alloy Nanoparticles

Rh is one of the most important noble metals for industrial applications. A major fraction of Rh is used as a catalyst for emission control in automotive catalytic converters because of its unparalleled activity toward NO(x) reduction. However, Rh is a rare and extremely expensive element; thus, the...

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Autores principales: Sato, Katsutoshi, Tomonaga, Hiroyuki, Yamamoto, Tomokazu, Matsumura, Syo, Zulkifli, Nor Diana Binti, Ishimoto, Takayoshi, Koyama, Michihisa, Kusada, Kohei, Kobayashi, Hirokazu, Kitagawa, Hiroshi, Nagaoka, Katsutoshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4919684/
https://www.ncbi.nlm.nih.gov/pubmed/27340099
http://dx.doi.org/10.1038/srep28265
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author Sato, Katsutoshi
Tomonaga, Hiroyuki
Yamamoto, Tomokazu
Matsumura, Syo
Zulkifli, Nor Diana Binti
Ishimoto, Takayoshi
Koyama, Michihisa
Kusada, Kohei
Kobayashi, Hirokazu
Kitagawa, Hiroshi
Nagaoka, Katsutoshi
author_facet Sato, Katsutoshi
Tomonaga, Hiroyuki
Yamamoto, Tomokazu
Matsumura, Syo
Zulkifli, Nor Diana Binti
Ishimoto, Takayoshi
Koyama, Michihisa
Kusada, Kohei
Kobayashi, Hirokazu
Kitagawa, Hiroshi
Nagaoka, Katsutoshi
author_sort Sato, Katsutoshi
collection PubMed
description Rh is one of the most important noble metals for industrial applications. A major fraction of Rh is used as a catalyst for emission control in automotive catalytic converters because of its unparalleled activity toward NO(x) reduction. However, Rh is a rare and extremely expensive element; thus, the development of Rh alternative composed of abundant elements is desirable. Pd and Ru are located at the right and left of Rh in the periodic table, respectively, nevertheless this combination of elements is immiscible in the bulk state. Here, we report a Pd–Ru solid-solution-alloy nanoparticle (Pd(x)Ru(1-x) NP) catalyst exhibiting better NO(x) reduction activity than Rh. Theoretical calculations show that the electronic structure of Pd(0.5)Ru(0.5) is similar to that of Rh, indicating that Pd(0.5)Ru(0.5) can be regarded as a pseudo-Rh. Pd(0.5)Ru(0.5) exhibits better activity than natural Rh, which implies promising applications not only for exhaust-gas cleaning but also for various chemical reactions.
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spelling pubmed-49196842016-06-28 A Synthetic Pseudo-Rh: NO(x) Reduction Activity and Electronic Structure of Pd–Ru Solid-solution Alloy Nanoparticles Sato, Katsutoshi Tomonaga, Hiroyuki Yamamoto, Tomokazu Matsumura, Syo Zulkifli, Nor Diana Binti Ishimoto, Takayoshi Koyama, Michihisa Kusada, Kohei Kobayashi, Hirokazu Kitagawa, Hiroshi Nagaoka, Katsutoshi Sci Rep Article Rh is one of the most important noble metals for industrial applications. A major fraction of Rh is used as a catalyst for emission control in automotive catalytic converters because of its unparalleled activity toward NO(x) reduction. However, Rh is a rare and extremely expensive element; thus, the development of Rh alternative composed of abundant elements is desirable. Pd and Ru are located at the right and left of Rh in the periodic table, respectively, nevertheless this combination of elements is immiscible in the bulk state. Here, we report a Pd–Ru solid-solution-alloy nanoparticle (Pd(x)Ru(1-x) NP) catalyst exhibiting better NO(x) reduction activity than Rh. Theoretical calculations show that the electronic structure of Pd(0.5)Ru(0.5) is similar to that of Rh, indicating that Pd(0.5)Ru(0.5) can be regarded as a pseudo-Rh. Pd(0.5)Ru(0.5) exhibits better activity than natural Rh, which implies promising applications not only for exhaust-gas cleaning but also for various chemical reactions. Nature Publishing Group 2016-06-24 /pmc/articles/PMC4919684/ /pubmed/27340099 http://dx.doi.org/10.1038/srep28265 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Sato, Katsutoshi
Tomonaga, Hiroyuki
Yamamoto, Tomokazu
Matsumura, Syo
Zulkifli, Nor Diana Binti
Ishimoto, Takayoshi
Koyama, Michihisa
Kusada, Kohei
Kobayashi, Hirokazu
Kitagawa, Hiroshi
Nagaoka, Katsutoshi
A Synthetic Pseudo-Rh: NO(x) Reduction Activity and Electronic Structure of Pd–Ru Solid-solution Alloy Nanoparticles
title A Synthetic Pseudo-Rh: NO(x) Reduction Activity and Electronic Structure of Pd–Ru Solid-solution Alloy Nanoparticles
title_full A Synthetic Pseudo-Rh: NO(x) Reduction Activity and Electronic Structure of Pd–Ru Solid-solution Alloy Nanoparticles
title_fullStr A Synthetic Pseudo-Rh: NO(x) Reduction Activity and Electronic Structure of Pd–Ru Solid-solution Alloy Nanoparticles
title_full_unstemmed A Synthetic Pseudo-Rh: NO(x) Reduction Activity and Electronic Structure of Pd–Ru Solid-solution Alloy Nanoparticles
title_short A Synthetic Pseudo-Rh: NO(x) Reduction Activity and Electronic Structure of Pd–Ru Solid-solution Alloy Nanoparticles
title_sort synthetic pseudo-rh: no(x) reduction activity and electronic structure of pd–ru solid-solution alloy nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4919684/
https://www.ncbi.nlm.nih.gov/pubmed/27340099
http://dx.doi.org/10.1038/srep28265
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