Enhanced photocatalytic hydrogen generation using polymorphic macroporous TaON.

Tsang, Min-Ying; Pridmore, Natalie E; Gillie, Lisa J; Chou, Yi-Hsin; Brydson, Rik; Douthwaite, Richard E · Adv Mater · 2012

basic_science · Level V

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Abstract

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.

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