RT info:eu-repo/semantics/article
T1 Electrochemically generated CuI and CuSCN nanocrystals on Cu surfaces as Raman enhancing substrates
A1 Pérez Estébanez, Martín
A1 Cheuquepan Valenzuela, William
A1 Heras Vidaurre, Aránzazu
A1 Colina Santamaría, Álvaro
K1 Raman spectroscopy
K1 Spectroelectrochemistry
K1 EC-SOERS
K1 Copper substrates
K1 Química analítica
K1 Chemistry, Analytic
K1 Electroquímica
K1 Electrochemistry
AB Raman enhancing strategies, such as Surface-Enhance Raman scattering (SERS), are a key piece for the development of spectroscopic and analytical strategies based on Raman spectroscopy, due to the intrinsic low sensitivity of the Raman scattering. Some years ago, our group reported an unexpected Raman enhancement process observed during the electrochemical oxidation of metallic electrodes, named Electrochemical Oxidation Surface-Enhanced Raman scattering (EC-SOERS). This Raman enhancement phenomenon was recently explained as an interaction of the analyte and the SERS dielectric substrate promoted by a metal cation. The elucidation of the origin of this enhancement is now leading to the development of new Raman enhancing substrates, such as copper-based substrates. In this work, we present an overview of the use of copper electrodes as EC-SOERS substrates. The presented strategies allow the electrosynthesis of SERS-active CuI nanocrystals on a metallic copper surface, which provides Raman enhancement for a wide number of molecules. The influence of the electrochemical conditions and the structure of the studied molecules are discussed. The use of CuSCN nanocrystals is also explored as substrates to promote Raman enhancement.
PB Elsevier
SN 0169-4332
YR 2024
FD 2024
LK http://hdl.handle.net/10259/10053
UL http://hdl.handle.net/10259/10053
LA eng
NO Ministerio de Ciencia e Innovación and Agencia Estatal de Investigación (MCIN/AEI/10.13039/501100011033, PID2020-113154RB-C21), Junta de Castilla y León and European Regional Development Fund (Grant number: BU036P23), Ministerio de Ciencia, Innovación y Universidades (RED2022-134120-T) are gratefully acknowledged for funding this work. M. P.-E. acknowledges Junta de Castilla y León and European Social Found for his predoctoral contract. W. Ch. acknowledges Junta de Castilla y León for his postdoctoral fellowship (Grant BU297P18) and funding received from Marie Sklodowska-Curie postdoctoral fellowship (Grant MSCA-IF-EF-ST 2020/101031622).
DS Repositorio Institucional de la Universidad de Burgos
RD 31-ene-2025