Arm length dependency of Pt-decorated CdSe tetrapods on the performance of photocatalytic hydrogen generation

Younghun Sung, Jaehoon Lim, Jai Hyun Koh, Byoung Koun Min, Dong-Chul Pyun, Kookheon Char

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Pt-decorated CdSe tetrapods with different arm lengths were tested for the photocatalytic hydrogen generation reaction. Well-defined CdSe tetrapods with controlled wurtzite arm lengths were synthesized by the continuous precursor injection (CPI) approach. Pt nanocrystals with an extremely small size of ∼1 nm were directly decorated on the overall surfaces of CdSe tetrapods. Ligand-exchanged Pt-decorated CdSe tetrapods with different arm lengths were employed as photocatalysts for photocatalytic hydrogen generation reaction in the presence of hole scavengers. Pt-decorated CdSe tetrapods with shorter arm length showed the highest photocatalytic efficiency, which is due to higher probability of charge separation.

Original languageEnglish (US)
Pages (from-to)2287-2290
Number of pages4
JournalKorean Journal of Chemical Engineering
Volume33
Issue number8
DOIs
StatePublished - Aug 1 2016

Keywords

  • CdSe Tetrapod
  • Colloidal Heterostructured Nanocrystal
  • Photocatalytic Hydrogen Generation

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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