【作者】 熊宇杰； 江俊； 张群； 武晓君； 龙冉； 柏嵩； 李睿； 王利利；

【Author】 Yujie Xiong;J.Jiang;Q.Zhang;X.Wu;R.Long;S.Bai;R.Li;L.Wang;School of Chemistry and Materials Science,University of Science and Technology of China;

【机构】 中国科学技术大学化学与材料科学学院；

【摘要】 无机纳米晶体在分子吸附和活化方面的特性可以通过其表面晶面的调节而实现精确调控,从而使其在催化应用中展现出优异的性能。另一方面,通过形成半导体和金属等材料间的复合结构,可以调节其产生载流子的能力,对于优化其在光催化等体系中的性质极其有益,但其电荷分离及输运过程需要组成单元之间有一个完美界面。因此,纳米晶体的表界面调控对于催化材料的设计是至关重要的。在此报告中,我们将展示无机化学在纳米晶体体系的表界面调控中的作用。通过一系列控制手段,我们可以实现分子吸附与活化、载流子浓度及其他参数的调控,从而进一步调变其催化性能。该工作将为设计新型催化材料提供一些新的视角。更多还原

【Abstract】 Mastery over the surface of a nanocrystal enables control of its properties in molecular adsorption and activation,and enhances its usefulness for catalytic applications.On the other hand,hybrid systems that are formulated based on semiconductors and noble metals may exhibit improved performance in photocatalysis such as water splitting,mainly determined by the efficiency in generating carriers.In the systems,perfect interface is certainly the key to efficient carrier separation and transport.Taken together,the surface and interface modulation holds the key to materials design for catalytic applications.Here,we will demonstrate the role of inorganic chemistry in modulating the surface and interface of nanocrystal-based systems.Enabled by the controlling means,we have been able to tune the properties of nanocrystals,in terms of molecular adsorption and activation,carrier concentration and many other factors.It is expected that this work will open the door to designing new catalytic materials.更多还原