Detail publikace

Scanning Electrochemical Microscopy of Electrically Heated Wire Substrates

Wert, S. Fussstetter, A. Iffelsberger, C. Matysik, FM.

Originální název

Scanning Electrochemical Microscopy of Electrically Heated Wire Substrates

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

We report a new configuration for enhancing the performance of scanning electrochemical microscopy (SECM) via heating of the substrate electrode. A flattened Pt microwire was employed as the substrate electrode. The substrate was heated by an alternating current (AC), resulting in an increased mass transfer between the wire surface and the bulk solution. The electrochemical response of the Pt wire during heating was investigated by means of cyclic voltammetry (CV). The open circuit potential (OCP) of the wire was recorded over time, while varied heating currents were applied to investigate the time needed for establishing steady-state conditions. Diffusion layer studies were carried out by performing probe approach curves (PACs) for various measuring modes of SECM. Finally, imaging studies of a heated substrate electrode surface, applying feedback, substrate generation/tip collection (SG/TC), and the competition mode of SECM, were performed and compared with room temperature results.

Klíčová slova

hot-wire electrochemistry; scanning electrochemical microscopy; SECM; heated electrodes

Autoři

Wert, S.; Fussstetter, A.; Iffelsberger, C.; Matysik, FM.

Vydáno

1. 3. 2020

Nakladatel

MDPI

Místo

BASEL

ISSN

1420-3049

Periodikum

MOLECULES

Ročník

25

Číslo

5

Stát

Švýcarská konfederace

Strany od

1169-1

Strany do

1169-10

Strany počet

10

URL