Modular Design of Noble‐Metal‐Free Mixed Metal Oxide Electrocatalysts for Complete Water Splitting
- Publication type:
- Journal article
- Metadata:
-
- Abstract
- <jats:title>Abstract</jats:title><jats:p>Electrocatalytic water splitting into H<jats:sub>2</jats:sub> and O<jats:sub>2</jats:sub> is a key technology for carbon‐neutral energy. Here, we report a modular materials design leading to noble metal‐free composite electrocatalysts, which combine high electrical conductivity, high OER and HER reactivity and high durability. The scalable bottom‐up fabrication allows the stable deposition of mixed metal oxide nanostructures with different functionalities on copper foam electrodes. The composite catalyst shows sustained OER and HER activity in 0.1 <jats:sc>m</jats:sc> aqueous KOH over prolonged periods (<jats:italic>t</jats:italic>>10 h) at low overpotentials (OER: ≈300 mV; HER: ≈100 mV) and high faradaic efficiencies (OER: ≈100 %, HER: ≈98 %). The new synthetic concept will enable the development of multifunctional, mixed metal oxide composites as high‐performance electrocatalysts for challenging energy conversion and storage reactions.</jats:p>
- Autoren
- Dandan Gao
- Rongji Liu
- Johannes Biskupek
- Ute Kaiser
- Yu‐Fei Song
- Carsten Streb
- DOI
- 10.1002/ange.201900428
- eISSN
- 1521-3757
- ISSN
- 0044-8249
- Ausgabe der Veröffentlichung
- 14
- Zeitschrift
- Angewandte Chemie
- Sprache
- en
- Online publication date
- 2019
- Paginierung
- 4692 - 4696
- Datum der Veröffentlichung
- 2019
- Status
- Published
- Herausgeber
- Wiley
- Herausgeber URL
- http://dx.doi.org/10.1002/ange.201900428
- Datum der Datenerfassung
- 2023
- Titel
- Modular Design of Noble‐Metal‐Free Mixed Metal Oxide Electrocatalysts for Complete Water Splitting
- Ausgabe der Zeitschrift
- 131
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