Multi-shelled CeO2 hollow microspheres as superior photocatalysts for water oxidation
Article
Article Title | Multi-shelled CeO2 hollow microspheres as superior photocatalysts for water oxidation |
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ERA Journal ID | 41997 |
Article Category | Article |
Authors | Qi, Jian (Author), Zhao, Kun (Author), Li, Guodong (Author), Gao, Yan (Author), Zhao, Huijun (Author), Yu, Ranbo (Author) and Tang, Zhiyong (Author) |
Journal Title | Nanoscale |
Journal Citation | 6 (8), pp. 4072-4077 |
Number of Pages | 6 |
Year | 2014 |
Publisher | The Royal Society of Chemistry |
Place of Publication | United Kingdom |
ISSN | 2040-3364 |
2040-3372 | |
Digital Object Identifier (DOI) | https://doi.org/10.1039/c3nr06822f |
Web Address (URL) | http://pubs.rsc.org/en/Content/ArticleLanding/2014/NR/C3NR06822F#!divAbstract |
Abstract | A general self-templating method is introduced to construct triple-shelled CeO2 hollow microspheres, which are composed of tiny CeO2 nanoparticles. When the triple-shelled CeO2 hollow microspheres are used as photocatalysts for direct water oxidation with AgNO3 as the electron scavenger, excellent activity and enhanced stability for O2 evolution are achieved, in contrast with commercial CeO2 nanoparticles, single-shelled CeO2 hollow microspheres and double-shelled CeO2 hollow microspheres. Such an outstanding performance is attributed to the unique properties of the triple-shelled CeO2 hollow microspheres including more efficient multiple reflections of the incident light by the inner shells, the larger surface area and more active sites for improving separation of electron-hole pairs, and the more curved surfaces unfavorable for deposition of in situ generated Ag nanoparticles. |
Keywords | Ag nanoparticle; curved surfaces; electron hole pairs; electron scavengers; enhanced stability; hollow microsphere; multiple reflections; self-templating method; catalysis; cerium; microspheres; oxidation-reduction; oxygen; photochemical processes; water; precious metals; electric and magnetic materials; nanotechnology; chemical agents and basic industrial chemicals; solid state physics; |
ANZSRC Field of Research 2020 | 340304. Optical properties of materials |
340399. Macromolecular and materials chemistry not elsewhere classified | |
340601. Catalysis and mechanisms of reactions | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | National Center for Nanoscience and Technology, China |
Griffith University | |
University of Science and Technology Beijing, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q426x/multi-shelled-ceo2-hollow-microspheres-as-superior-photocatalysts-for-water-oxidation
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