Growth of tungsten oxide on carbon nanowalls templates

In the present work we present a simple approach for coupling tungsten oxide with carbon nanowalls. The two-dimensional carbon nanowalls with open boundaries were grown using plasma enhanced hot filament chemical vapor deposition, and the subsequent tungsten oxide growth was performed in the same equipment by direct heating of a tungsten filament. The tungsten oxide coating is found to have uniform morphology with a crystalline structure of monoclinic tungsten trioxide. Surface photoelectric voltage measurements show that this product has photoresponse properties. The method of synthesis described here provides an operable route to the production of two-dimensional tungsten oxide nanocomposites.

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► Tungsten oxide deposited on carbon nanowalls by hot filament chemical vapor deposition technique.
► This composite has two-dimensional uniform morphology with a crystalline structure of monoclinic tungsten trioxide.
► Surface photoelectric voltage measurements show that this product has photoresponse properties.