Towards quantitative analysis of core-shell catalyst nanoparticles by aberration corrected high angle annular dark field STEM and EDX
Core-shell structured heterogeneous catalyst nano-particles offer the promise of more efficient precious metal usage and also novel functionalities but are as yet poorly characterised due to large compositional variations over short ranges. High angle annular dark field detector in a scanning transm...
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| Format: | Conference item |
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2010
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| _version_ | 1797063767575494656 |
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| author | E, H Nellist, P Lozano-Perez, S Ozkaya, D |
| author_facet | E, H Nellist, P Lozano-Perez, S Ozkaya, D |
| author_sort | E, H |
| collection | OXFORD |
| description | Core-shell structured heterogeneous catalyst nano-particles offer the promise of more efficient precious metal usage and also novel functionalities but are as yet poorly characterised due to large compositional variations over short ranges. High angle annular dark field detector in a scanning transmission electron microscope is frequently used to image at high resolution because of its Z-contrast and incoherent imaging process, but generally little attention is paid to quantification. Energy dispersive X-ray analysis provides information on thickness and chemical composition and, used in conjunction with HAADF-STEM, aids interpretation of imaged nano-particles. We present important calibrations and initial data for truly quantitative high resolution analysis. © 2010 IOP Publishing Ltd. |
| first_indexed | 2024-03-06T21:04:37Z |
| format | Conference item |
| id | oxford-uuid:3c059d97-5f81-4340-84d2-d6a44a40c4de |
| institution | University of Oxford |
| last_indexed | 2024-03-06T21:04:37Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:3c059d97-5f81-4340-84d2-d6a44a40c4de2022-03-26T14:11:06ZTowards quantitative analysis of core-shell catalyst nanoparticles by aberration corrected high angle annular dark field STEM and EDXConference itemhttp://purl.org/coar/resource_type/c_5794uuid:3c059d97-5f81-4340-84d2-d6a44a40c4deSymplectic Elements at Oxford2010E, HNellist, PLozano-Perez, SOzkaya, DCore-shell structured heterogeneous catalyst nano-particles offer the promise of more efficient precious metal usage and also novel functionalities but are as yet poorly characterised due to large compositional variations over short ranges. High angle annular dark field detector in a scanning transmission electron microscope is frequently used to image at high resolution because of its Z-contrast and incoherent imaging process, but generally little attention is paid to quantification. Energy dispersive X-ray analysis provides information on thickness and chemical composition and, used in conjunction with HAADF-STEM, aids interpretation of imaged nano-particles. We present important calibrations and initial data for truly quantitative high resolution analysis. © 2010 IOP Publishing Ltd. |
| spellingShingle | E, H Nellist, P Lozano-Perez, S Ozkaya, D Towards quantitative analysis of core-shell catalyst nanoparticles by aberration corrected high angle annular dark field STEM and EDX |
| title | Towards quantitative analysis of core-shell catalyst nanoparticles by aberration corrected high angle annular dark field STEM and EDX |
| title_full | Towards quantitative analysis of core-shell catalyst nanoparticles by aberration corrected high angle annular dark field STEM and EDX |
| title_fullStr | Towards quantitative analysis of core-shell catalyst nanoparticles by aberration corrected high angle annular dark field STEM and EDX |
| title_full_unstemmed | Towards quantitative analysis of core-shell catalyst nanoparticles by aberration corrected high angle annular dark field STEM and EDX |
| title_short | Towards quantitative analysis of core-shell catalyst nanoparticles by aberration corrected high angle annular dark field STEM and EDX |
| title_sort | towards quantitative analysis of core shell catalyst nanoparticles by aberration corrected high angle annular dark field stem and edx |
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