Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 9, Pages 6186-6190Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am501021e
Keywords
pulsed-laser deposition; water oxidation; amorphous iron oxide; nanostructures; electrocatalysis; water splitting
Funding
- Provincia Autonoma di Trento project ENAM
- Istituto PCB of CNR (Italy)
- MIUR FIRB NANOSOLAR [RBAP11C58Y]
- ENI
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Amorphous iron oxide nanoparticles were synthesized by pulsed-laser deposition (PLD) for functionalization of indium-tin oxide surfaces, resulting in electrodes capable of efficient catalysis in water oxidation. These electrodes, based on earth-abundant and nonhazardous iron metal, are able to sustain high current densities (up to 20 mA/cm(2)) at reasonably low applied potential (1.64 V at pH 11.8 vs reversible hydrogen electrode) for more than 1 h when employed as anodes for electrochemical water oxidation. The good catalytic performance proves the validity of PLD as a method to prepare nanostructured solid-state materials for catalysis, enabling control over critical properties such as surface coverage and morphology.
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