In situ observation of carrier transfer in the Mn-oxide/Nb:SrTiO3 photoelectrode by X-ray absorption spectroscopy

Masaaki Yoshida; Takumi Yomogida; Takehiro Mineo; Kiyofumi Nitta; Kazuo Kato; Takuya Masuda; Hiroaki Nitani; Hitoshi Abe; Satoru Takakusagi; Tomoya Uruga; Kiyotaka Asakura; Kohei Uosaki; Hiroshi Kondoh

doi:10.1039/c3cc43584a

In situ observation of carrier transfer in the Mn-oxide/Nb:SrTiO3 photoelectrode by X-ray absorption spectroscopy

Chem Commun (Camb). 2013 Sep 14;49(71):7848-50. doi: 10.1039/c3cc43584a.

Authors

Masaaki Yoshida¹, Takumi Yomogida, Takehiro Mineo, Kiyofumi Nitta, Kazuo Kato, Takuya Masuda, Hiroaki Nitani, Hitoshi Abe, Satoru Takakusagi, Tomoya Uruga, Kiyotaka Asakura, Kohei Uosaki, Hiroshi Kondoh

Affiliation

¹ Department of Chemistry, Keio University, Yokohama, Japan. yoshida@chem.keio.ac.jp

PMID: 23892561
DOI: 10.1039/c3cc43584a

Abstract

The Mn-oxide/Nb:SrTiO3 photoelectrode for oxygen evolution reaction was investigated by in situ Mn K-edge XAFS spectroscopy under UV irradiation. The oxidization of the Mn oxide was observed via photoexcited carrier transfer, which results in the positive potential shift of the Mn oxide cocatalyst toward oxygen evolution reaction.