Journal article
Evidence of high-pressure rhodium sesquioxide in the rhodium/gamma-alumina catalytic system
Journal of physical chemistry. C, v 112(31), pp 11831-11834
07 Aug 2008
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Abstract
We report an investigation of Rh-containing nanostructures dispersed on gamma-alumina. This system is representative of many common heterogeneous catalysts that consist of transition metals dispersed on a high surface area support. Previous atomic-resolution Z-contrast STEM observations have shown the Rh particles to exist as thin "rafts" on the (100) surface of gamma-alumina. This finding is intriguing given that the preferred surface exposure of gamma-alumina is (110). Here we present first-principles density functional studies and simulated Z-STEM imaging suggesting that these Rh-containing structures consist of the high-pressure rhodium sesquioxide (II) phase growing on the surface.
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Details
- Title
- Evidence of high-pressure rhodium sesquioxide in the rhodium/gamma-alumina catalytic system
- Creators
- Karl Sohlberg - Shandong University of TechnologyShuping Zhuo - Shandong University of TechnologyPeter Nellist - Shandong University of TechnologyYiping Peng - Shandong University of TechnologyStephen Pennycook - Shandong University of Technology
- Publication Details
- Journal of physical chemistry. C, v 112(31), pp 11831-11834
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 4
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:000258147200034
- Scopus ID
- 2-s2.0-49649106030
- Other Identifier
- 991019168730404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology