Journal
CHEMSUSCHEM
Volume 10, Issue 22, Pages 4465-4471Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201701074
Keywords
electrocatalysis; hematite; oxygen evolution reaction; photocatalysis; water splitting
Funding
- National Basic Research Program of China [2015CB932302]
- National Natural Science Foundation of China [21501112, 21331005, 21401181, U1362149, U1532265]
- Natural Science Foundation of Shandong Province [ZR2014BQ007]
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Herein, excellent light absorption and oxygen-evolving activity were simultaneously achieved by doping fluorine anions into hematite nanocrystals. Upon anion doping, the band structure of hematite can be effectively regulated, leading to the generation of defect levels between the band gap and remarkably increased visible light absorption. The activity for electrocatalytic oxygen evolution reaction (OER) of the hematite nanocrystals is enhanced after fluorine doping, where the doped hematite assists as an effective catalyst for photoelectrochemical water splitting. The optimization strategy proposed herein may shed light on the future design of photocatalysts for energy-related applications.
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