Enhanced Photocatalytic Hydrogen Generation Using Polymorphic Macroporous TaON

Macroporous TaON (mac‐TaON) is prepared using polymer sphere templating and controlled ammonolysis. In contrast to typical powder synthesis, which gives the β polymorph, mac‐TaON is a mixture of β and γ polymorphs. mac‐TaON shows twice the activity for photocatalytic hydrogen generation in compariso...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2012-07, Vol.24 (25), p.3406-3409
Main Authors: Tsang, Min-Ying, Pridmore, Natalie E., Gillie, Lisa J., Chou, Yi-Hsin, Brydson, Rik, Douthwaite, Richard E.
Format: Article
Language:English
Subjects:
Catalysis
hydrogen
Hydrogen - chemistry
macroporous
Oxides - chemistry
photocatalysis
photonics
Polymers - chemistry
Polystyrenes - chemistry
Porosity
Tantalum - chemistry
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Summary:Macroporous TaON (mac‐TaON) is prepared using polymer sphere templating and controlled ammonolysis. In contrast to typical powder synthesis, which gives the β polymorph, mac‐TaON is a mixture of β and γ polymorphs. mac‐TaON shows twice the activity for photocatalytic hydrogen generation in comparison to mac‐TaON when normalised for surface area.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201201193