Size-Selected Subnanometer Cluster Catalysts on Semiconductor Nanocrystal Films for Atomic Scale Insight into Photocatalysis
Size-Selected Subnanometer Cluster Catalysts on Semiconductor Nanocrystal Films for Atomic Scale Insight into Photocatalysis
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DOI：
10.1021/nl3033069
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发表时间：
2012-11-01
期刊：
影响因子：
10.8
通讯作者：
Feldmann, Jochen
中科院分区：
文献类型：
--
作者：
Berr, Maximilian J.;Schweinberger, Florian F.;Feldmann, Jochen
我们介绍了沉积在胶体半导体纳米晶体薄膜上的尺寸选择的亚纳米簇催化剂，作为一个新的平台，以获得原子尺度的洞察光催化生成太阳能燃料。以pt簇修饰的CdS纳米棒膜用于光催化制氢为例，我们确定了获得最大量子制氢效率所需的最小催化剂量。此外，我们还提供了通过精确控制催化剂簇大小来调节光催化活性的证据。
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.