Ultrathin nanosheets of palladium in boosting its cocatalyst role and plasmonic effect towards enhanced photocatalytic hydrogen evolution
Ultrathin nanosheets of palladium in boosting its cocatalyst role and plasmonic effect towards enhanced photocatalytic hydrogen evolution
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超薄钯纳米片增强其助催化剂作用和等离子体效应，从而增强光催化析氢
DOI：
10.1039/c6ra09647f
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发表时间：
2016-06
期刊：
影响因子：
3.9
通讯作者：
Bai, Song
中科院分区：
文献类型：
--
作者：
Gong, Peijun;Qiao, Ru;Li, Zhengquan;Bai, Song
金属与半导体的组合是提高光催化剂的太阳能-化学转化效率的有前途的途径。在这篇文章中，Pd纳米片集成与半导体TiO 2纳米片光催化析氢，作为一个助催化剂和等离子体激元剂在紫外和可见-近红外光谱区，分别。由于独特的二维（2D）纳米结构，Pd纳米片助催化剂实现了用于电子转移的大的TiO 2-Pd界面面积以及用于还原反应的大的Pd暴露面积，而等离子体Pd纳米片提供了用于“热”电子产生的强可见-NIR光吸收以及用于“热”电子注入的大的界面面积。结果表明，在两种光照射下，与三维Pd纳米四面体相比，Pd纳米片实现了改善的光催化活性。这项工作强调了在选择合适的金属形状的表面和界面设计的光催化剂的金属混合物的重要性，以及在实现高的光催化性能的2D金属纳米结构的优势。
The combination of a metal with a semiconductor is a promising route to improve the solar-to-chemical conversion efficiency of photocatalysts. In this article, ultrathin Pd nanosheets are integrated with semiconductor TiO2 nanosheets for photocatalytic hydrogen evolution, which acts as a cocatalyst and plasmonic agent in ultraviolet and visible-near-infrared spectral regions, respectively. Owing to the unique two-dimensional (2D) nanostructure, the Pd nanosheet cocatalyst realizes the large TiO2–Pd interfacial area for electron transfer as well as a large Pd exposed area for reduction reactions, while the plasmonic Pd nanosheets offer strong vis-NIR light absorption for “hot” electron production as well as a large interfacial area for “hot” electron injection. As a result, the Pd nanosheets achieve improved photocatalytic activity in comparison with three-dimensional Pd nanotetrahedrons under both light irradiations. This work underlines the importance in choosing a suitable shape of metal in the surface and interface design of semiconductor–metal hybrid photocatalysts as well as the advantages of 2D metal nanostructures in realizing high photocatalytic performance.
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影响因子：
3.7
作者：
T. Sreethawong;S. Yoshikawa
通讯作者：
T. Sreethawong;S. Yoshikawa
DOI：
10.1002/chin.201529262
发表时间：
2015-07
期刊：
ChemInform
影响因子：
--
作者：
Song Bai;Jun Jiang;Qun Zhang;Y. Xiong
通讯作者：
Song Bai;Jun Jiang;Qun Zhang;Y. Xiong
影响因子：
16.6
作者：
Chen, Junze;Wu, Xue-Jun;Zhang, Hua
通讯作者：
Zhang, Hua
影响因子：
10.8
作者：
Chen, Lei;Ji, Fei;Zhang, Qiao
通讯作者：
Zhang, Qiao
超薄铑纳米片
影响因子：
16.6
作者：
Duan, Haohong;Yan, Ning;Li, Yadong
通讯作者：
Li, Yadong