张晓宏教授、王璐教授与曹暮寒副研究员合作在ACS Nano上发表论文

题目：

Construction of Single-Atom Platinum Catalysts Enabled by CsPbBr₃ Nanocrystals

作者：

Huicheng Hu,^1,2,∥ Wenhao Guan,^1,∥ Yafeng Xu,^1,∥ Xuchun Wang,^1,3 Linzhong Wu,¹ Min Chen,¹ Qixuan Zhong,¹ Yong Xu,¹ Youyong Li,¹ Tsun-Kong Sham,³ Xiaohong Zhang,^1,* Lu Wang,^1,* Muhan Cao,^1,* and Qiao Zhang¹

单位：

¹Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123 Jiangsu, People’s Republic of China

²Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology, Wuhan 430074 Hubei, People’s Republic of China

³Department of Chemistry, University of Western Ontario, London, ON N6A 5B7, Canada

摘要：

Lead halide perovskite nanocrystals (CsPbX₃ NCs) have been regarded as promising materials in photocatalysis. Combining metal single atoms with CsPbX₃ NCs may be a practical way in exploring perovskite-based catalysts. However, such hybrids have not been achieved experimentally yet, mainly due to the weak interaction between the metal atom and the CsPbX₃ surface. Here, we demonstrate that Pt single atoms can be deposited on CsPbBr₃ NCs through a photoassisted approach, in which the surface was partially oxidized first, followed by the anchoring of Pt single atoms through the formation of Pt−O and Pt−Br bonds. The deposition of Pt single atoms can significantly change the photophysical properties of CsPbBr₃ NCs by inducing the generation of deep trap states in the band gap. The as-prepared Pt-SA/CsPbBr₃ can be used as efficient and durable catalysts for photocatalytic semi-hydrogenation of propyne. A CsPbBr₃ nanocrystal might be a suitable substrate for anchoring other metal single atoms, such as Cu, Au, Ag, Pd, and so on.

影响因子：

14.588

分区情况：

一区

链接：

https://doi.org/10.1021/acsnano.1c02515