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Mamiko Nakabayashi, Tsuyoshi Takata, Naoya Shibata, Kazunari Domen, Nanostructural Analysis of SrTiO3:Al Photocatalyst Dispersed with Pt/Cr2O3/CoOOH Cocatalysts by Electron Microscopy, Chemistry Letters, Volume 51, Issue 10, October 2022, Pages 978–981, https://doi.org/10.1246/cl.220329
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Abstract
The distribution of cocatalysts on a water splitting photocatalyst was investigated using electron microscopy combined with energy dispersive X-ray spectroscopy. Pt, Cr, and Co cocatalyst components were dispersed on the surface of an Al-doped SrTiO3 photocatalyst by stepwise photodeposition. It was found that the Pt/Cr2O3 cocatalyst for hydrogen evolution and the CoOOH cocatalyst for oxygen evolution were selectively deposited on different crystal facets, indicating anisotropic charge transport.