RT info:eu-repo/semantics/article
T1 Bidimensional Spectroelectrochemistry with Tunable Thin-Layer Thickness
A1 Pérez Estébanez, Martín
A1 Perales Rondon, Juan Víctor
A1 Hernández Muñoz, Sheila
A1 Heras Vidaurre, Aránzazu
A1 Colina Santamaría, Álvaro
K1 Absorption
K1 Electrochemical cells
K1 Electrodes
K1 Layers
K1 Thickness
K1 Química analítica
K1 Chemistry, Analytic
K1 Electroquímica
K1 Electrochemistry
AB Bidimensional spectroelectrochemistry (Bidim-SEC) is an instrumental technique that provides operando UV/vis absorption information on electrochemical processes from two different points of view, using concomitantly a parallel and a normal optical configuration. The parallel configuration provides information about chemical species present in the diffusion layer, meanwhile the normal arrangement supplies information about changes occurring both in the diffusion layer and, mainly, on the electrode surface. The choice of a suitable cell to perform Bidim-SEC experiments is critical, especially while working under a thin-layer regime. So far, most of the proposed Bidim-SEC cells rely on the use of spacers to define the thin-layer thickness, which leads to working with constant thickness values. Herein, we propose a novel Bidim-SEC cell that enables easy-to-use micrometric control of the thin-layer thickness using a piezoelectric positioner. This device can be used for the study of complex interfacial systems and also to easily measure the key parameters of an electrochemical process. As a proof of concept, the study of the roughening of a gold electrode in KCl medium is performed, identifying key steps in the passivation and nanoparticle generation on the gold surface.
PB American Chemical Society
SN 0003-2700
YR 2024
FD 2024
LK http://hdl.handle.net/10259/10049
UL http://hdl.handle.net/10259/10049
LA eng
NO This work was funded by the Ministerio de Ciencia e Innovación and Agencia Estatal de Investigación (MCIN/AEI/10.13039/501100011033 and PID2020–113154RB-C21), Ministerio de Ciencia, Innovación y Universidades (RED2022–134120-T), and Junta de Castilla y León and European Regional Development Fund (Grant number: BU036P23).
DS Repositorio Institucional de la Universidad de Burgos
RD 05-feb-2025