Abstract
Molecular catalysts are known for their high activity and tunability, but their solubility and limited stability often restrict their use in practical applications. Here we describe how a molecular iridium catalyst for water oxidation directly and robustly binds to oxide surfaces without the need for any external stimulus or additional linking groups. On conductive electrode surfaces, this heterogenized molecular catalyst oxidizes water with low overpotential, high turnover frequency and minimal degradation. Spectroscopic and electrochemical studies show that it does not decompose into iridium oxide, thus preserving its molecular identity, and that it is capable of sustaining high activity towards water oxidation with stability comparable to state-of-the-art bulk metal oxide catalysts.
Original language | English |
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Article number | 6469 |
Pages (from-to) | 1-9 |
Number of pages | 9 |
Journal | Nature Communications |
Volume | 6 |
Early online date | 11 Mar 2015 |
DOIs | |
Publication status | Published - 11 Mar 2015 |
Keywords
- Electrocatalysis
- Energy
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Dive into the research topics of 'A molecular catalyst for water oxidation that binds to metal oxide surfaces'. Together they form a unique fingerprint.Profiles
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Ulrich Hintermair
- Department of Chemistry - Royal Society University Research Fellow & Reader
- Centre for Sustainable Chemical Technologies (CSCT)
- Made Smarter Innovation: Centre for People-Led Digitalisation
- Institute of Sustainability and Climate Change
Person: Research & Teaching, Core staff, Researcher
Equipment
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Large chamber variable pressure scanning electron microscope (SEM)
Material and Chemical Characterisation (MC2)Facility/equipment: Equipment