Geometric Effect of Single or Double Metal-Tipped CdSe Nanorods on Photocatalytic H2 Generation.
In the present work, we focused on geometrical (single- or double-tipped) and compositional (Pt or Au) variations of active metal components in a well-defined CdSe nanorod system. These colloidal nanostructures were employed for photocatalytic hydrogen generation from water under the identical reaction conditions with visible light irradiation. The catalysts exhibited significant dependency of the catalytic activity, specifically on the catalyst geometry and the choice of the metal tips, determined by the energetic consideration of electron transfer to the metal tips and hole transfer to the sacrificial reagents on the CdSe nanorods.
†Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea.|‡Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon, 305-701, Korea.
Jung Up
JU
Bang
†Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea.|‡Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon, 305-701, Korea.
Seon Joo
SJ
Lee
§School of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, 790-784, Korea.
Jum Suk
JS
Jang
§School of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, 790-784, Korea.
Wonyong
W
Choi
†Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea.|‡Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon, 305-701, Korea.
Hyunjoon
H
Song
geometric effect; hydrogen generation; metal-semiconductor hybrid; nanostructured catalyst; photocatalysis; tipped nanorods