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Electrochemical On‐line ICP‐MS in Electrocatalysis Research
Author(s) -
Kasian Olga,
Geiger Simon,
Mayrhofer Karl J.J.,
Cherevko Serhiy
Publication year - 2019
Publication title -
the chemical record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.61
H-Index - 78
eISSN - 1528-0691
pISSN - 1527-8999
DOI - 10.1002/tcr.201800162
Subject(s) - dissolution , electrocatalyst , inductively coupled plasma mass spectrometry , electrochemistry , electrolyte , catalysis , electrochemical energy conversion , chemical engineering , chemistry , materials science , mass spectrometry , electrode , chromatography , engineering , biochemistry
Electrocatalyst degradation due to dissolution is one of the major challenges in electrochemical energy conversion technologies such as fuel cells and electrolysers. While tendencies towards dissolution can be grasped considering available thermodynamic data, the kinetics of material's stability in real conditions is still difficult to predict and have to be measured experimentally, ideally in‐situ and/or on‐line. On‐line inductively coupled plasma mass spectrometry (ICP‐MS) is a technique developed recently to address exactly this issue. It allows time‐ and potential‐resolved analysis of dissolution products in the electrolyte during the reaction under dynamic conditions. In this work, applications of on‐line ICP‐MS techniques in studies embracing dissolution of catalysts for oxygen reduction (ORR) and evolution (OER) as well as hydrogen oxidation (HOR) and evolution (HER) reactions are reviewed.