Size-Selected Subnanometer Cluster Catalysts on Semiconductor Nanocrystal Films for Atomic Scale Insight into Photocatalysis

被引：83

作者：

Berr, Maximilian J. ^{[3
,4
]}

Schweinberger, Florian F. ^{[1
,2
]}

Doeblinger, Markus ^{[5
]}

Sanwald, Kai E. ^{[1
,2
]}

Wolff, Christian ^{[3
,4
]}

Breimeier, Johannes ^{[3
,4
]}

Crampton, Andrew S. ^{[1
,2
]}

Ridge, Claron J. ^{[1
,2
]}

Tschurl, Martin ^{[1
,2
]}

Heiz, Ulrich ^{[1
,2
]}

Jaeckel, Frank ^{[3
,4
]}

Feldmann, Jochen ^{[3
,4
]}

机构：

[1] Tech Univ Munich, Chair Phys Chem, Dept Chem, D-85748 Garching, Germany

[2] Tech Univ Munich, Catalysis Res Ctr, D-85748 Garching, Germany

[3] Univ Munich, Photon & Optoelect Grp, Dept Phys, D-80799 Munich, Germany

[4] Univ Munich, Ctr NanoSci CeNS, D-80799 Munich, Germany

[5] Univ Munich, Dept Chem, D-81377 Munich, Germany

来源：

NANO LETTERS | 2012年 / 12卷 / 11期

关键词：

photocatalysis; size-selected clusters; colloidal semiconductor nanocrystals; solar hydrogen; cadmium sulfide; renewable energy; NOBLE; WATER; CO2;

D O I：

10.1021/nl3033069

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We introduce size-selected subnanometer cluster catalysts deposited on thin films of colloidal semiconductor nanocrystals as a novel platform to obtain atomic scale insight into photocatalytic generation of solar fuels. Using Pt-cluster-decorated CdS nanorod films for photocatalytic hydrogen generation as an example, we determine the minimum amount of catalyst necessary to obtain maximum quantum efficiency of hydrogen generation. Further, we provide evidence for tuning photocatalytic activities by precisely controlling the cluster catalyst size.

引用

页码：5903 / 5906

页数：4

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