%0 Journal Article
%A Yang, Chih-Ping
%A Fang, Sheng-Uei
%A Yang, Kuang-Hsuan
%A Chen, Hsiao-Chien
%A Tsai, Hui-Yen
%A Mai, Fu-Der
%A Liu, Yu-Chuan
%D 2018
%T Surface-Enhanced Raman Scattering-Active Substrate
Prepared with New Plasmon-Activated Water
%U https://acs.figshare.com/articles/journal_contribution/Surface-Enhanced_Raman_Scattering-Active_Substrate_Prepared_with_New_Plasmon-Activated_Water/6205136
%R 10.1021/acsomega.8b00494.s001
%2 https://ndownloader.figshare.com/files/11279456
%K DI water-based systems
%K surface-enhanced Raman
%K plasmon-activated water
%K electron-transfer rate
%K DI water
%K tetrahedral hydrogen-bonded network
%K PAW
%K New Plasmon-Activated Water Conventionally
%K diffusion coefficient
%K hydrogen bonds
%K SERS enhancement
%K rhodamine 6 G
%K Surface-Enhanced Raman Scattering-Active Substrate
%K electrochemical reactions
%X Conventionally, reactions
in aqueous solutions are prepared using
deionized (DI) water, the properties of which are related to inert
“bulk water” comprising a tetrahedral hydrogen-bonded
network. In this work, we demonstrate the distinguished benefits of
using in situ plasmon-activated water (PAW) with reduced hydrogen
bonds instead of DI water in electrochemical reactions, which generally
are governed by diffusion and kinetic controls. Compared with DI water-based
systems, the diffusion coefficient and the electron-transfer rate
constant of K3Fe(CN)6 in PAW in situ can be
increased by ca. 35 and 15%, respectively. These advantages are responsible
for the improved performance of surface-enhanced Raman scattering
(SERS). On the basis of PAW in situ, the SERS enhancement of twofold
higher intensity of rhodamine 6G and the corresponding low relative
standard deviation of 5%, which is comparable to and even better than
those based on complicated processes shown in the literature, are
encouraging.
%I ACS Publications