TY  - JOUR
A1  - Cui, Qianling
A1  - Shen, Guizhi
A1  - Yan, Xuehai
A1  - Li, Lidong
A1  - Moehwald, Helmuth
A1  - Bargheer, Matias
T1  - Fabrication of Au@Pt multibranched nanoparticles and their application to in situ SERS monitoring
JF  - ACS applied materials & interfaces
N2  - 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.
KW  - nanoparticles
KW  - gold
KW  - core-shell nanostructure
KW  - surface-enhanced Raman scattering
KW  - heterogeneous catalysis
KW  - bimetallic nanoparticles
Y1  - 2014
U6  - https://doi.org/10.1021/am504709a
SN  - 1944-8244
VL  - 6
IS  - 19
SP  - 17075
EP  - 17081
PB  - American Chemical Society
CY  - Washington
ER  -