Issue 91, 2020
From the journal:

Chemical Communications

In situ photoacoustic analysis of near-infrared absorption of rhodium-doped strontium titanate photocatalyst powder†

Tatsuki Shinoda, ORCID logo a   Yuichi Yamaguchi,b   Akihiko Kudo ORCID logo b  and  Naoya Murakami ORCID logo *a  

* Corresponding authors

a Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu 808-0196, Japan
E-mail: murakami@life.kyutech.ac.jp

b Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan

Abstract

Near-infrared absorption of strontium titanate (SrTiO3) doped with rhodium (Rh) was investigated by photoacoustic (PA) Fourier transform infrared spectroscopy. In the absence of an electron acceptor and the presence of a hole scavenger, the largest absorption change in the Rh valence state from tetravalent to trivalent was observed in Rh-doped SrTiO3 prepared at 1473 K, which showed the highest activity for hydrogen evolution. PA measurements revealed the effective redox cycle mechanism between tetravalent and trivalent Rh ions in Rh-doped SrTiO3.

Graphical abstract: In situ photoacoustic analysis of near-infrared absorption of rhodium-doped strontium titanate photocatalyst powder

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Article information

DOI
https://doi.org/10.1039/D0CC06414A
Article type
Communication
Submitted
24 Sep 2020
Accepted
23 Oct 2020
First published
24 Oct 2020

Chem. Commun., 2020,56, 14255-14258

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In situ photoacoustic analysis of near-infrared absorption of rhodium-doped strontium titanate photocatalyst powder

T. Shinoda, Y. Yamaguchi, A. Kudo and N. Murakami, Chem. Commun., 2020, 56, 14255 DOI: 10.1039/D0CC06414A

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