Godfrey, IJ;
Dent, AJ;
Parkin, IP;
Maenosono, S;
Sankar, G;
(2020)
Following the Formation of Silver Nanoparticles Using in Situ X-ray Absorption Spectroscopy.
ACS Omega
, 5
(23)
pp. 13664-13671.
10.1021/acsomega.0c00697.
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Abstract
The formation of silver and Au@Ag core@shell nanoparticles via reduction of AgNO3 by trisodium citrate was followed using in situ X-ray absorption near-edge structure (XANES) spectroscopy and time-resolved UV-visible (UV-vis) spectroscopy. The XANES data were analyzed through linear combination fitting, and the reaction kinetics were found to be consistent with first-order behavior with respect to silver cations. For the Au@Ag nanoparticles, the UV-vis data of a lab-scale reaction showed a gradual shift in dominance between the gold- and silver-localized surface plasmon absorbance bands. Notably, throughout much of the reaction, distinct gold and silver contributions to the UV-vis spectra were observed; however, in the final product, the contributions were not distinct.
| Type: | Article |
|---|---|
| Title: | Following the Formation of Silver Nanoparticles Using in Situ X-ray Absorption Spectroscopy |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acsomega.0c00697 |
| Publisher version: | https://doi.org/10.1021/acsomega.0c00697 |
| Language: | English |
| Additional information: | This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License, which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10101466 |
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