Probe-molecule-assisted NMR spectroscopy: A comparison with photoluminescence and electron paramagnetic resonance spectroscopy as a characterization tool in facet-specific photocatalysis
Photoluminescence (PL) and EPR spectroscopy are the two most commonly used techniques to evaluate surface oxygen vacancies (V O surface ) on photoactive transition metal oxides. However, these techniques have shortcomings in the characterization of facet-dependent catalysis. Here, we used the chemic...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
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Wiley
2016
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| _version_ | 1797091467100946432 |
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| author | Peng, Y Fu, Y Zhang, L Teixeira, I Ye, L He, H Tsang, S |
| author_facet | Peng, Y Fu, Y Zhang, L Teixeira, I Ye, L He, H Tsang, S |
| author_sort | Peng, Y |
| collection | OXFORD |
| description | Photoluminescence (PL) and EPR spectroscopy are the two most commonly used techniques to evaluate surface oxygen vacancies (V O surface ) on photoactive transition metal oxides. However, these techniques have shortcomings in the characterization of facet-dependent catalysis. Here, we used the chemical adsorption of a 31 P-containing probe molecule to obtain the distribution/concentration of V O surface as well as other surface features (hydroxyl groups) of ZnO by using 31 P magic-angle spinning NMR spectroscopy. This facet-specific technique not only makes cross-literature comparison feasible but also provides more comprehensive information to lead to a further understanding of the photocatalytic mechanism. |
| first_indexed | 2024-03-07T03:33:30Z |
| format | Journal article |
| id | oxford-uuid:bb83590f-c7e2-4e44-8db6-7d5956cff18d |
| institution | University of Oxford |
| last_indexed | 2024-03-07T03:33:30Z |
| publishDate | 2016 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:bb83590f-c7e2-4e44-8db6-7d5956cff18d2022-03-27T05:17:33ZProbe-molecule-assisted NMR spectroscopy: A comparison with photoluminescence and electron paramagnetic resonance spectroscopy as a characterization tool in facet-specific photocatalysisJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bb83590f-c7e2-4e44-8db6-7d5956cff18dSymplectic Elements at OxfordWiley2016Peng, YFu, YZhang, LTeixeira, IYe, LHe, HTsang, SPhotoluminescence (PL) and EPR spectroscopy are the two most commonly used techniques to evaluate surface oxygen vacancies (V O surface ) on photoactive transition metal oxides. However, these techniques have shortcomings in the characterization of facet-dependent catalysis. Here, we used the chemical adsorption of a 31 P-containing probe molecule to obtain the distribution/concentration of V O surface as well as other surface features (hydroxyl groups) of ZnO by using 31 P magic-angle spinning NMR spectroscopy. This facet-specific technique not only makes cross-literature comparison feasible but also provides more comprehensive information to lead to a further understanding of the photocatalytic mechanism. |
| spellingShingle | Peng, Y Fu, Y Zhang, L Teixeira, I Ye, L He, H Tsang, S Probe-molecule-assisted NMR spectroscopy: A comparison with photoluminescence and electron paramagnetic resonance spectroscopy as a characterization tool in facet-specific photocatalysis |
| title | Probe-molecule-assisted NMR spectroscopy: A comparison with photoluminescence and electron paramagnetic resonance spectroscopy as a characterization tool in facet-specific photocatalysis |
| title_full | Probe-molecule-assisted NMR spectroscopy: A comparison with photoluminescence and electron paramagnetic resonance spectroscopy as a characterization tool in facet-specific photocatalysis |
| title_fullStr | Probe-molecule-assisted NMR spectroscopy: A comparison with photoluminescence and electron paramagnetic resonance spectroscopy as a characterization tool in facet-specific photocatalysis |
| title_full_unstemmed | Probe-molecule-assisted NMR spectroscopy: A comparison with photoluminescence and electron paramagnetic resonance spectroscopy as a characterization tool in facet-specific photocatalysis |
| title_short | Probe-molecule-assisted NMR spectroscopy: A comparison with photoluminescence and electron paramagnetic resonance spectroscopy as a characterization tool in facet-specific photocatalysis |
| title_sort | probe molecule assisted nmr spectroscopy a comparison with photoluminescence and electron paramagnetic resonance spectroscopy as a characterization tool in facet specific photocatalysis |
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