Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 22, Issue 44, Pages 15639-15644Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201603419
Keywords
hydrogen-evolution reaction; manganese ferrite; photocatalysis; porous organic polymers; water splitting
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Funding
- Department of Science and Technology (DST), New Delhi
- Department of Science and Technology, India in CSIR-IICT, Hyderabad [GAP-0522]
- CSIR, New Delhi
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A novel MnFe2O4-porous organic polymer (POP) nanocomposite was synthesized by a facile hydrothermal method and using the highly cross-linked N-rich benzene-benzylamine POP. The nanocomposite presented highly efficient photocatalytic performance in the hydrogen evolution reaction (HER) from pure water without addition of any sacrificial agent under one AM1.5G sunlight illumination. A photocatalytic activity of 6.12mmolh(-1)g(-1) was achieved in the absence of any noble metal cocatalyst, which is the highest H-2 production rate reported for nonprecious metal catalysts. The photocatalytic performance of MnFe2O4-POP could be attributed to the intrinsic synergistic effects of manganese ferrite (MnFe2O4) nanoclusters interacting with the nitrogen dopant POP with a unique mesoporous nanoarchitecture and spatially confined growth of MnFe2O4 in the interconnected POP network, leading to high visible-light absorption with fast electron transport.
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