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| On the cover: Human civilization has been boosted by the development of chemistry, from fire-using to artificial fuels and chemicals. The advancement of chemistry brings us closer than ever to the nature of microscopic universe. Now, chemists are playing a critical role to develop green energy and intelligent materials. For a bright future of humanity, more and more breakthroughs in chemical technology are needed. |
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| Position: Home > issue > February 28, 2021 Volume 2, Issue 1 |
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| Controllable Generation of Reactive Oxygen Species on Cyano-Group-Modified Carbon Nitride for Selective Epoxidation of Styrene |
| Category: Report |
| Author: Hao Tan, Peng Kong, Riguang Zhang, Mengting Gao, Meixian Liu, Xianmo Gu, Weifeng Liu, Zhanfeng Zheng |
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Graphical Abstract
The controlled generation of reactive oxygen species (ROS) to selectively epoxidize styrene is a grand challenge. Herein, cyano-group-modified carbon nitrides (CNCYx and CN-Ty) are prepared, and the catalysts show better performance in regulating ROS and producing styrene oxide than the cyano-free sample. The in situ diffuse reflectance infrared and density functional theory calculation results reveal that the cyano group acts as the adsorption and activation site of oxygen. X-ray photoelectron spectroscopy and NMR spectrum results confirm that the cyano group bonds with the intact heptazine ring.
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SHANGHAI INSTITUTE OF APPLIED PHYSICS, CAS
INSTITUTE OF MICROBIOLOGY, CAS
XI'AN INSTITUTE OF OPTICS AND PRECISION MECHANICS, CAS
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