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

作者：Sung Younghun; Lim Jaehoon; Koh Jai Hyun; Min Byoung Koun; Pyun Jeffrey^*; Char Kookheon^*

来源：Korean Journal of Chemical Engineering, 2016, 33(8): 2287-2290.

DOI：10.1007/s11814-016-0200-9

• Colloidal Heterostructured Nanocrystal
• CdSe Tetrapod
• Photocatalytic Hydrogen Generation

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 similar to 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.

• 出版日期2016-8