Enhancement of catalytic activity of AgPd@Pd/TiO2 nanoparticles under UV and visible photoirradiation

Masaharu Tsuji, Daisuke Shimamoto, Keiko Uto, Masashi Hattori, Hiroki Ago

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The effects of photoirradiation for the production of hydrogen from the decomposition of formic acid (FA) were studied using Ag93Pd7@Pd/TiO2 (anatase (A) or P25 (P)) nanocatalysts. The catalytic activity was enhanced by a factor of 1.5-1.6 under UV and visible (vis) photoirradiation at room temperature for both TiO2 supports. It was explained by the formation of an electron-rich Pd shell because of the migration of photogenerated electrons from the TiO2 surface. The catalytic activity of Ag93Pd7@Pd/TiO2 (A) was 1.7-7.3 times higher than that of Ag93Pd7@Pd/TiO2 (P) without and under photoirradiation at 27-90 °C. The catalytic activity of Ag93Pd7@Pd/TiO2 (A) under photoirradiation at 27 °C with 468 mmol H2 g per catalyst per h, is the best value ever reported out of all of the heterogeneous catalysts using TiO2 (A) as a photocatalyst at room temperature.

Original languageEnglish
Pages (from-to)14649-14656
Number of pages8
JournalJournal of Materials Chemistry A
Volume4
Issue number38
DOIs
Publication statusPublished - 2016

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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