Fabrication of Au@Pt multibranched nanoparticles and their application to in situ SERS monitoring
- Here, we present an Au@Pt core-shell multibranched nanoparticle as a new substrate capable of in situ surface-enhanced Raman scattering (SERS), thereby enabling monitoring of the catalytic reaction on the active surface. By careful control of the amount of Pt deposited bimetallic Au@Pt, nanoparticles with moderate performance both for SERS and catalytic activity were obtained. The Pt-catalyzed reduction of 4-nitrothiophenol by borohydride was chosen as the model reaction. The intermediate during the reaction was captured and clearly identified via SERS spectroscopy. We established in situ SERS spectroscopy as a promising and powerful technique to investigate in situ reactions taking place in heterogeneous catalysis.
| Author details: | Qianling Cui, Guizhi Shen, Xuehai Yan, Lidong Li, Helmuth Moehwald, Matias BargheerORCiDGND |
|---|---|
| DOI: | https://doi.org/10.1021/am504709a |
| ISSN: | 1944-8244 |
| Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/25215532 |
| Title of parent work (English): | ACS applied materials & interfaces |
| Publisher: | American Chemical Society |
| Place of publishing: | Washington |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2014 |
| Publication year: | 2014 |
| Release date: | 2017/03/27 |
| Tag: | bimetallic nanoparticles; core-shell nanostructure; gold; heterogeneous catalysis; nanoparticles; surface-enhanced Raman scattering |
| Volume: | 6 |
| Issue: | 19 |
| Number of pages: | 7 |
| First page: | 17075 |
| Last Page: | 17081 |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer review: | Referiert |
