Abstract
AbstractSurface plasmon resonances (SPRs) have been found to promote chemical reactions. In most oxidative chemical reactions oxygen molecules participate and understanding of the activation mechanism of oxygen molecules is highly important. For this purpose, we applied surface‐enhanced Raman spectroscopy (SERS) to find out the mechanism of SPR‐assisted activation of oxygen, by using p‐aminothiophenol (PATP), which undergoes a SPR‐assisted selective oxidation, as a probe molecule. In this way, SPR has the dual function of activating the chemical reaction and enhancing the Raman signal of surface species. Both experiments and DFT calculations reveal that oxygen molecules were activated by accepting an electron from a metal nanoparticle under the excitation of SPR to form a strongly adsorbed oxygen molecule anion. The anion was then transformed to Au or Ag oxides or hydroxides on the surface to oxidize the surface species, which was also supported by the heating effect of the SPR. This work points to a promising new era of SPR‐assisted catalytic reactions.
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Dates
Type | When |
---|---|
Created | 11 years, 7 months ago (Jan. 31, 2014, 4:47 a.m.) |
Deposited | 1 year, 10 months ago (Oct. 17, 2023, 8:17 a.m.) |
Indexed | 4 months, 3 weeks ago (April 10, 2025, 12:30 p.m.) |
Issued | 11 years, 7 months ago (Jan. 31, 2014) |
Published | 11 years, 7 months ago (Jan. 31, 2014) |
Published Online | 11 years, 7 months ago (Jan. 31, 2014) |
Published Print | 11 years, 6 months ago (Feb. 24, 2014) |
@article{Huang_2014, title={Activation of Oxygen on Gold and Silver Nanoparticles Assisted by Surface Plasmon Resonances}, volume={126}, ISSN={1521-3757}, url={http://dx.doi.org/10.1002/ange.201310097}, DOI={10.1002/ange.201310097}, number={9}, journal={Angewandte Chemie}, publisher={Wiley}, author={Huang, Yi‐Fan and Zhang, Meng and Zhao, Liu‐Bin and Feng, Jia‐Min and Wu, De‐Yin and Ren, Bin and Tian, Zhong‐Qun}, year={2014}, month=jan, pages={2385–2389} }