Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene

ZrO(2) heterophase structure nanocrystals (HSNCs) were synthesized with tunable ratios of monoclinic ZrO(2) (m-ZrO(2)) to tetragonal ZrO(2) (t-ZrO(2)). The phase mole ratio of m-ZrO(2) versus t-ZrO(2) in ZrO(2) HSNCs was tuned from 40% to 100%. The concentration of the surface hydroxyl groups on m-Z...

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Autores principales: Peng, Zhikun, Liu, Xu, Li, Shuaihui, Li, Zhongjun, Li, Baojun, Liu, Zhongyi, Liu, Shouchang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5216362/
https://www.ncbi.nlm.nih.gov/pubmed/28057914
http://dx.doi.org/10.1038/srep39847
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author Peng, Zhikun
Liu, Xu
Li, Shuaihui
Li, Zhongjun
Li, Baojun
Liu, Zhongyi
Liu, Shouchang
author_facet Peng, Zhikun
Liu, Xu
Li, Shuaihui
Li, Zhongjun
Li, Baojun
Liu, Zhongyi
Liu, Shouchang
author_sort Peng, Zhikun
collection PubMed
description ZrO(2) heterophase structure nanocrystals (HSNCs) were synthesized with tunable ratios of monoclinic ZrO(2) (m-ZrO(2)) to tetragonal ZrO(2) (t-ZrO(2)). The phase mole ratio of m-ZrO(2) versus t-ZrO(2) in ZrO(2) HSNCs was tuned from 40% to 100%. The concentration of the surface hydroxyl groups on m-ZrO(2) is higher than that on t-ZrO(2). ZrO(2) HSNCs have different surface hydroxyl groups on two crystalline phases. This creates more intimate synergistic effects than their single-phase counterparts. The ZrO(2) HSNCs were used as effective supports to fabricate heterophase-structured Ru/ZrO(2) catalysts for benzene-selective hydrogenation. The excellent catalytic performance including high activity and selectivity is attributed to the heterogeneous strong/weak hydrophilic interface and water layer formed at the m-ZrO(2)/t-ZrO(2) catalyst junction.
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spelling pubmed-52163622017-01-09 Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene Peng, Zhikun Liu, Xu Li, Shuaihui Li, Zhongjun Li, Baojun Liu, Zhongyi Liu, Shouchang Sci Rep Article ZrO(2) heterophase structure nanocrystals (HSNCs) were synthesized with tunable ratios of monoclinic ZrO(2) (m-ZrO(2)) to tetragonal ZrO(2) (t-ZrO(2)). The phase mole ratio of m-ZrO(2) versus t-ZrO(2) in ZrO(2) HSNCs was tuned from 40% to 100%. The concentration of the surface hydroxyl groups on m-ZrO(2) is higher than that on t-ZrO(2). ZrO(2) HSNCs have different surface hydroxyl groups on two crystalline phases. This creates more intimate synergistic effects than their single-phase counterparts. The ZrO(2) HSNCs were used as effective supports to fabricate heterophase-structured Ru/ZrO(2) catalysts for benzene-selective hydrogenation. The excellent catalytic performance including high activity and selectivity is attributed to the heterogeneous strong/weak hydrophilic interface and water layer formed at the m-ZrO(2)/t-ZrO(2) catalyst junction. Nature Publishing Group 2017-01-06 /pmc/articles/PMC5216362/ /pubmed/28057914 http://dx.doi.org/10.1038/srep39847 Text en Copyright © 2017, The Author(s) 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
Peng, Zhikun
Liu, Xu
Li, Shuaihui
Li, Zhongjun
Li, Baojun
Liu, Zhongyi
Liu, Shouchang
Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene
title Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene
title_full Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene
title_fullStr Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene
title_full_unstemmed Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene
title_short Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene
title_sort heterophase-structured nanocrystals as superior supports for ru-based catalysts in selective hydrogenation of benzene
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5216362/
https://www.ncbi.nlm.nih.gov/pubmed/28057914
http://dx.doi.org/10.1038/srep39847
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