Topographical study of TiO2 nanostructure surface for photocatalytic hydrogen production

Cha G, Lee K, Yoo JE, Killian M, Schmuki P (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Book Volume: 179

Pages Range: 423-430

DOI: 10.1016/j.electacta.2015.02.127

Abstract

In the present work we investigate the photocatalytic hydrogen production (water splitting) activity of different Pt loaded TiO2 nanotube layers. Therefore, we fabricate free standing membranes and fix them in four different configurations: top up (with initiation layer ``grass'' or without) and bottom up (bottom closed or open), then decorate the tubes with various amounts of Pt and measure the open-circuit photocatalytic H2 production rate. We find a strong influence of the configuration with the open top morphology showing the highest photocatalytic hydrogen production efficiency, these nanotubes yield 3.5 times more H2 than the least efficient structure (bottom closed). The work therefore provides valuable guidelines for optimizing TiO2 nanotube layers for photocatalytic applications.

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APA:

Cha, G., Lee, K., Yoo, J.E., Killian, M., & Schmuki, P. (2015). Topographical study of TiO2 nanostructure surface for photocatalytic hydrogen production. Electrochimica Acta, 179, 423-430. https://dx.doi.org/10.1016/j.electacta.2015.02.127

MLA:

Cha, Gi, et al. "Topographical study of TiO2 nanostructure surface for photocatalytic hydrogen production." Electrochimica Acta 179 (2015): 423-430.

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