Electrocatalytic oxygen evolution reaction (OER) on mixed nanoporous RuIr borides

Efficient water splitting for commercial electrolysis devices is predicated on the development of materials, specifically for the catalytic electrodes, that exhibit an optimal balance between activity and stability. Complicating the development of electrocatalytic materials, particularly for oxygen-...

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Published inJournal of applied electrochemistry Vol. 51; no. 7; pp. 1101 - 1108
Main Authors Intikhab, Saad, Sokol, Maxim, Natu, Varun, Chatterjee, Swarnendu, Li, Yawei, Barsoum, Michel W., Snyder, Joshua
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.07.2021
Springer Nature B.V
Subjects
Borides
Chemistry
Chemistry and Materials Science
Electrocatalysts
Electrochemistry
Electrolysis
High aspect ratio
Hydrogen production
Industrial Chemistry/Chemical Engineering
Matching
Oxygen evolution reactions
Physical Chemistry
Short Communication
Stability
Water splitting
PEM electrolysis
Nanoporous metals
Oxygen evolution reaction
Dealloying
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Summary:Efficient water splitting for commercial electrolysis devices is predicated on the development of materials, specifically for the catalytic electrodes, that exhibit an optimal balance between activity and stability. Complicating the development of electrocatalytic materials, particularly for oxygen-evolving anodes in acidic polymer electrolyte membrane electrolyzers, is an inverse relationship between activity and stability. Here the development of a nanostructured oxygen evolution reaction (OER) electrocatalyst for low-pH water splitting is demonstrated. Dealloying of mixed RuIr borides is used to form a high aspect ratio electrocatalytic material that exhibits low OER overpotentials matching that of RuO x and electrolytic stability matching that of IrO x . Graphic abstract
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ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-021-01555-z