Strontium doped lanthanum manganites for efficient and robust photocatalytic water oxidation coupled with graphene oxide
| Autor: | Anindya Sundar Patra, Natarajan Vinoth Kumar, Mahuya De, Mohammad Qureshi, Dipankar Barpuzary |
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| Rok vydání: | 2014 |
| Předmět: |
Strontium
Materials science Graphene Mechanical Engineering Inorganic chemistry Doping Oxide Oxygen evolution chemistry.chemical_element Quantum yield Condensed Matter Physics law.invention chemistry.chemical_compound chemistry Mechanics of Materials law Lanthanum Photocatalysis General Materials Science |
| Zdroj: | Materials Letters. 131:125-127 |
| ISSN: | 0167-577X |
| Popis: | Strontium doped lanthanum manganites, La 1− x Sr x MnO 3 ; (0.0 x 1− x Sr x MnO 3 shows an excellent photocatalytic properties in generating high amount of oxygen, were characterized and reported. Strontium doping and the angle between the Mn–O–Mn facilitate conduction pathways resulting in enhanced oxygen production. An apparent quantum yield (AQY) of ~7% has been achieved for La 0.7 Sr 0.3 MnO 3. Further enhancement of photocatalytic properties were observed by the introduction of electron accepting graphene oxide (GO) which facilitates enhanced charge separation. An AQY of 8% has been achieved in La 0.7 Sr 0.3 MnO 3 —GO composite. |
| Databáze: | OpenAIRE |
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