点击次数：

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