<div class="csl-bib-body">
<div class="csl-entry">Cherevan, A. S., Robbins, S., Dieterle, D. J., Gebhardt, P., Wiesner, U., & Eder, D. (2016). Ordered gyroidal tantalum oxide photocatalysts: eliminating diffusion limitations and tuning surface barriers. <i>Nanoscale</i>, <i>8</i>, 16694–16701. https://doi.org/10.1039/C6NR04430A</div>
</div>
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dc.identifier.issn
2040-3364
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/20230
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dc.description.abstract
In this work we synthesized well-ordered, Ta2O5 films with a 3D-interconnected gyroid mesopore architecture with large pore sizes beyond 30 nm and extended crystalline domains through self-assembly of tailor-made triblock-terpolymers. This has effectively eliminated diffusion limitations inherent to previously reported mesoporous photocatalysts and resulted in superior hydrogen evolution with apparent quantum yields of up to 4.6% in the absence of any cocatalyst. We further show that the injection barrier at the solid–liquid interface constitutes a key criterion for photocatalytic performance and can be modified by the choice of the carbon template. This work highlights pore and surface engineering as a promising tool towards high-performance mesoporous catalysts and electrodes for various energy-related applications.