Статья

Single Pt Atoms Confined into a Metal–Organic Framework for Efficient Photocatalysis

Xinzuo FangHefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Soft Matter Chemistry Collaborative Innovation Center of Suzhou Nano Science and Technology Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaQichao ShangHefei National Laboratory for Physical Sciences at the Microscale Synergetic Innovation Center of Quantum Information and Quantum Physics Department of Chemical Physics University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaYu WangCollege of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 ChinaLong JiaoHefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Soft Matter Chemistry Collaborative Innovation Center of Suzhou Nano Science and Technology Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaTao YaoNational Synchrotron Radiation Laboratory University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaYafei LiCollege of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 ChinaQun ZhangHefei National Laboratory for Physical Sciences at the Microscale Synergetic Innovation Center of Quantum Information and Quantum Physics Department of Chemical Physics University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaYi LuoHefei National Laboratory for Physical Sciences at the Microscale Synergetic Innovation Center of Quantum Information and Quantum Physics Department of Chemical Physics University of Science and Technology of China Hefei Anhui 230026 P. R. ChinaHai‐Long JiangHefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Soft Matter Chemistry Collaborative Innovation Center of Suzhou Nano Science and Technology Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 P. R. China

2018en

ABI

Аннотация

Abstract It is highly desirable yet remains challenging to improve the dispersion and usage of noble metal cocatalysts, beneficial to charge transfer in photocatalysis. Herein, for the first time, single Pt atoms are successfully confined into a metal–organic framework (MOF), in which electrons transfer from the MOF photosensitizer to the Pt acceptor for hydrogen production by water splitting under visible‐light irradiation. Remarkably, the single Pt atoms exhibit a superb activity, giving a turnover frequency of 35 h −1 , ≈30 times that of Pt nanoparticles stabilized by the same MOF. Ultrafast transient absorption spectroscopy further unveils that the single Pt atoms confined into the MOF provide highly efficient electron transfer channels and density functional theory calculations indicate that the introduction of single Pt atoms into the MOF improves the hydrogen binding energy, thus greatly boosting the photocatalytic H 2 production activity.

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Идентификаторы

DOI: 10.1002/adma.201705112

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar