Difference in the cooperative interaction between carbon nanotubes and Ru particles loaded on their internal/external surface
Article
Article Title | Difference in the cooperative interaction between carbon nanotubes and Ru particles loaded on their internal/external surface |
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ERA Journal ID | 201472 |
Article Category | Article |
Authors | Wang, Li (Author), Chen, Jiuling (Author), Ge, Lei (Author), Rudolph, Victor (Author) and Zhu, Zhonghua (Author) |
Journal Title | RSC Advances: an international journal to further the chemical sciences |
Journal Citation | 3 (31), pp. 12641-12647 |
Number of Pages | 7 |
Year | 2013 |
Publisher | The Royal Society of Chemistry |
Place of Publication | United Kingdom |
ISSN | 2046-2069 |
Digital Object Identifier (DOI) | https://doi.org/10.1039/c3ra41208c |
Web Address (URL) | http://pubs.rsc.org/en/Content/ArticleLanding/2013/RA/c3ra41208c#!divAbstract |
Abstract | This paper examines differences in the cooperative interaction between carbon nanotubes (CNTs) and Ru particles loaded on their internal/external surface. The techniques used were transmission electron microscopy, X-ray photoelectron spectroscopy, CO chemisorption, X-ray diffraction, N2 physisorption, hydrogen temperature-programmed reduction and two probe catalysis reactions, namely ammonia decomposition and preferential oxidation of CO in H2-rich atmosphere (PROX). The results show that the loading of highly dispersed Ru particles on CNTs does not change the structure of the CNTs. The cooperative interaction between Ru particles and associated CNT surfaces is dependent on the position of Ru particles and the surface functional groups of CNTs. Due to the electron-deficient structure of Ru particles confined inside CNT channels, they have an inferior ammonia decomposition activity to those deposited on the CNT external surface. For PROX, the catalytic performance of Ru particles confined inside CNT channels is superior compared to that over Ru particles deposited outside CNTs, which we attribute to the selective reactant enrichment of CO over H2 inside the CNTs. |
Keywords | ammonia decomposition; catalytic performance; cooperative interactions; electron-deficient; external surfaces; preferential oxidation; surface functional groups; temperature-programmed reduction; catalyst activity; functional groups; photoelectrons; transmission electron microscopy; X ray diffraction; X ray photoelectron spectroscopy; carbon nanotubes |
ANZSRC Field of Research 2020 | 400408. Reaction engineering (excl. nuclear reactions) |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | University of Queensland |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3z48/difference-in-the-cooperative-interaction-between-carbon-nanotubes-and-ru-particles-loaded-on-their-internal-external-surface
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