Efficient photocatalytic H2 evolution: Controlled dewetting-dealloying to fabricate site-selective high-activity nanoporous Au particles on highly ordered TiO2 nanotube arrays

N.T. Nguyen; M. Altomare; J. Yoo; P. Schmuki

doi:10.1002/adma.201500742

Efficient photocatalytic H2 evolution: Controlled dewetting-dealloying to fabricate site-selective high-activity nanoporous Au particles on highly ordered TiO2 nanotube arrays

N.T. Nguyen, M. Altomare, J. Yoo, P. Schmuki^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

146 Citations (Scopus)

Abstract

Anodic self-organized TiO2 nanostumps are formed and exploited for self-ordering dewetting of Au–Ag sputtered films. This forms ordered particle configurations at the tube top (crown position) or bottom (ground position). By dealloying from a minimal amount of noble metal, porous Au nanoparticles are then formed, which, when in the crown position, allow for a drastically improved photocatalytic H2 production compared with nanoparticles produced by conventional dewetting processes.

Original language	English
Pages (from-to)	3208-3215
Journal	Advanced materials
Volume	27
Issue number	20
DOIs	https://doi.org/10.1002/adma.201500742
Publication status	Published - 2015
Externally published	Yes

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AU - Schmuki, P.

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Efficient photocatalytic H2 evolution: Controlled dewetting-dealloying to fabricate site-selective high-activity nanoporous Au particles on highly ordered TiO2 nanotube arrays

Abstract

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