MnFe2O4Nanocrystals Wrapped in a Porous Organic Polymer: A Designed Architecture for Water-Splitting Photocatalysis
| Autor: | John Mondal, Anil K. Sinha, Sudipta K. Kundu, Vipin Amoli, Karnekanti Dhanalaxmi, Benjaram M. Reddy, Rajkumar Yadav |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Nanocomposite
Dopant Chemistry Organic Chemistry Inorganic chemistry 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences Nanoclusters Chemical engineering Nanocrystal Photocatalysis engineering Water splitting Noble metal 0210 nano-technology Mesoporous material |
| Zdroj: | Chemistry - A European Journal. 22:15639-15644 |
| ISSN: | 0947-6539 |
| DOI: | 10.1002/chem.201603419 |
| Popis: | A novel MnFe2 O4 -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 AM 1.5 G sunlight illumination. A photocatalytic activity of 6.12 mmol h-1 g-1 was achieved in the absence of any noble metal cocatalyst, which is the highest H2 production rate reported for nonprecious metal catalysts. The photocatalytic performance of MnFe2 O4 -POP could be attributed to the intrinsic synergistic effects of manganese ferrite (MnFe2 O4 ) nanoclusters interacting with the nitrogen dopant POP with a unique mesoporous nanoarchitecture and spatially confined growth of MnFe2 O4 in the interconnected POP network, leading to high visible-light absorption with fast electron transport. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |