Photoreduction Kinetics of Sodium Tetrachloroaurate under Synchrotron Soft X-ray Exposure
We report on the time evolution of the sodium tetrachloroaurate (NaAuCl4) chemical properties as a function of soft X-ray exposure in a dried sample on a silicon surface using X-ray photoelectron spectroscopy (XPS). Our investigations provide mechanistic insight into the photoreduction kinetics from...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Published: |
American Chemical Society
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/3285 |
| _version_ | 1848744189662068736 |
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| author | Fong, Y. Visser, B. Gascooke, J. Cowie, B. Thomsen, L. Metha, G. Buntine, Mark Harris, H. |
| author_facet | Fong, Y. Visser, B. Gascooke, J. Cowie, B. Thomsen, L. Metha, G. Buntine, Mark Harris, H. |
| author_sort | Fong, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We report on the time evolution of the sodium tetrachloroaurate (NaAuCl4) chemical properties as a function of soft X-ray exposure in a dried sample on a silicon surface using X-ray photoelectron spectroscopy (XPS). Our investigations provide mechanistic insight into the photoreduction kinetics from AuIII to AuI and then AuI to Au0. We unambiguously show that XPS photoreduction occurs in stepwise fashion via the AuI state. Both photoreduction steps undergo first-order kinetics. |
| first_indexed | 2025-11-14T05:57:31Z |
| format | Journal Article |
| id | curtin-20.500.11937-3285 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T05:57:31Z |
| publishDate | 2011 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-32852017-09-13T16:01:43Z Photoreduction Kinetics of Sodium Tetrachloroaurate under Synchrotron Soft X-ray Exposure Fong, Y. Visser, B. Gascooke, J. Cowie, B. Thomsen, L. Metha, G. Buntine, Mark Harris, H. We report on the time evolution of the sodium tetrachloroaurate (NaAuCl4) chemical properties as a function of soft X-ray exposure in a dried sample on a silicon surface using X-ray photoelectron spectroscopy (XPS). Our investigations provide mechanistic insight into the photoreduction kinetics from AuIII to AuI and then AuI to Au0. We unambiguously show that XPS photoreduction occurs in stepwise fashion via the AuI state. Both photoreduction steps undergo first-order kinetics. 2011 Journal Article http://hdl.handle.net/20.500.11937/3285 10.1021/la200463k American Chemical Society restricted |
| spellingShingle | Fong, Y. Visser, B. Gascooke, J. Cowie, B. Thomsen, L. Metha, G. Buntine, Mark Harris, H. Photoreduction Kinetics of Sodium Tetrachloroaurate under Synchrotron Soft X-ray Exposure |
| title | Photoreduction Kinetics of Sodium Tetrachloroaurate under Synchrotron Soft X-ray Exposure |
| title_full | Photoreduction Kinetics of Sodium Tetrachloroaurate under Synchrotron Soft X-ray Exposure |
| title_fullStr | Photoreduction Kinetics of Sodium Tetrachloroaurate under Synchrotron Soft X-ray Exposure |
| title_full_unstemmed | Photoreduction Kinetics of Sodium Tetrachloroaurate under Synchrotron Soft X-ray Exposure |
| title_short | Photoreduction Kinetics of Sodium Tetrachloroaurate under Synchrotron Soft X-ray Exposure |
| title_sort | photoreduction kinetics of sodium tetrachloroaurate under synchrotron soft x-ray exposure |
| url | http://hdl.handle.net/20.500.11937/3285 |