Dynamic Electrochemical Impedance Spectroscopy (DEIS) as a Tool for Analyzing Surface Oxidation Processes on Boron-Doped Diamond Electrodes
PBN-AR
Instytucja
Wydział Elektroniki, Telekomunikacji i Informatyki (Politechnika Gdańska)
Informacje podstawowe
Główny język publikacji
ENG
Czasopismo
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN
0013-4651
EISSN
Wydawca
DOI
URL
Rok publikacji
2014
Numer zeszytu
6
Strony od-do
359-364
Numer tomu
161
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
BDD, OXIDATION, DEIS, ANODIC POLARIZATION
Streszczenia
Język
Treść
Surface oxidation processes play a key role in understanding electrochemical properties of boron-doped diamond (BDD) electrodes. The type of surface termination groups, which create the potential window of electrolytic water stability or hydrophobicity, influences such properties. In this study the kinetics of oxidation process under anodic polarization were studied in situ by means of Dynamic Electrochemical Impedance Spectroscopy (DEIS) technique. This novel approach allows for obtaining the impedance data for non-stationary systems. It has been proven that for [B] dopant level of 10k ppm, polarization to 1.5 V vs. Ag|AgCl is sufficient to initiate transformation of the film terminating BDD electrodes. XPS analysis and wettability measurements confirmed oxidation under given conditions
Inne
System-identifier
127801