Work

Stability of nanostructured iridium oxide electrocatalysts during oxygen evolution reaction in acidic environment

Year: 2014

Type: article

Abstract: The electrochemical stability of thermally prepared Ir oxide films is investigated using a scanning flow cell (SFC)–inductively coupled plasma mass-spectrometer (ICP-MS) setup under transient and stationary potential and/or current conditions. Time-resolved dissolution rates provide important insights into critical conditions for material breakdown and a fully quantitative in-situ assessment of the electrochemical stability during oxygen evolution reaction (OER) conditions. In particular, the results demonstrate that stability and OER activity of the IrOx catalysts strongly depend on the chemical and structural nature of Ir oxide species and their synthesis conditions.

Source: Electrochemistry Communications

DOI: 10.1016/j.elecom.2014.08.027

Authors: Serhiy Cherevko, Tobias Reier, Aleksandar R. Zeradjanin, Zarina Pawolek, Peter Strasser, Karl J.J. Mayrhofer

Institutions: Max-Planck-Institut für Nachhaltige Materialien, Technische Universität Berlin

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,630

Funders: Deutsche Forschungsgemeinschaft, Bundesministerium für Bildung und Forschung