論文

査読有り 国際誌
2020年2月11日

Activation of Water-Splitting Photocatalysts by Loading with Ultrafine Rh-Cr Mixed-Oxide Cocatalyst Nanoparticles.

Angewandte Chemie (International ed. in English)
  • Wataru Kurashige
  • ,
  • Yutaro Mori
  • ,
  • Shuhei Ozaki
  • ,
  • Masanobu Kawachi
  • ,
  • Sakiat Hossain
  • ,
  • Tokuhisa Kawawaki
  • ,
  • Cameron J Shearer
  • ,
  • Akihide Iwase
  • ,
  • Gregory F Metha
  • ,
  • Seiji Yamazoe
  • ,
  • Akihiko Kudo
  • ,
  • Yuichi Negishi

記述言語
英語
掲載種別
DOI
10.1002/anie.201916681

The activity of many water-splitting photocatalysts could be improved by the use of Rh(III)-Cr(III) mixed oxide (Rh 2- x Cr x O 3 ) particles as cocatalysts. Although further improvement of water-splitting activity could be achieved if the size of the Rh 2- x Cr x O 3 particles was decreased further, it is difficult to load ultrafine (<2 nm) Rh 2- x Cr x O 3 particles onto a photocatalyst using conventional loading methods. In this study, we successfully established a new loading method and used it to load Rh 2- x Cr x O 3 particles with a size of approximately 1.3 nm and a narrow size distribution onto the BaLa 4 Ti 4 O 15 photocatalyst. The obtained photocatalyst exhibited an apparent quantum yield of 16%, which is the highest achieved for BaLa 4 Ti 4 O 15 to date. Thus, the developed loading technique of Rh 2- x Cr x O 3 particles is extremely effective at improving the activity of the water-splitting photocatalyst BaLa 4 Ti 4 O 15 . This method is expected to be extended to other advanced water-splitting photocatalysts to achieve higher quantum yields.

リンク情報
DOI
https://doi.org/10.1002/anie.201916681
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/32043742