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影响因子：

30.849

DOI码：

10.1002/adma.202110653

所属单位：

中南大学

发表刊物：

Advanced Materials

摘要：

Recognizing and controlling the structure–activity relationships of single-atom catalysts (SACs) is vital for manipulating their catalytic properties for various practical applications. Herein, Fe SACs supported on nitrogen-doped carbon (SA-Fe/CN) are reported, which show high catalytic reactivity (97% degradation of bisphenol A in only 5 min), high stability (80% of reactivity maintained after five runs), and wide pH suitability (working pH range 3–11) toward Fenton-like reactions. The roles of different N species in these reactions are further explored, both experimentally and theoretically. It is discovered that graphitic N is an adsorptive site for the target molecule, pyrrolic N coordinates with Fe(III) and plays a dominant role in the reaction, and pyridinic N, coordinated with Fe(II), is only a minor contributor to the reactivity of SA-Fe/CN. Density functional theory (DFT) calculations reveal that a lower d-band center location of pyrrolic-type Fe sites leads to the easy generation of Fe-oxo intermediates, and thus, excellent catalytic properties.

论文类型：

期刊论文

论文编号：

202110653

学科门类：

理学

一级学科：

化学

文献类型：

J

ISSN号：

0935-9648

是否译文：

否

发表时间：

2022-03-08

收录刊物：

SCI

发布期刊链接：

https://onlinelibrary.wiley.com/doi/10.1002/adma.202110653