近日，新引进特聘教授苏徽以共同一作身份在《德国应用化学》发表学术论文，署名单位为“光能转换材料湖南省高校重点实验室”。工作利用N掺杂C上原子级分散的Fe将NO电催化合成氨基酸。

How to transfer industrial exhaust gases of nitrogen oxides into high-values product is significantly important and challenging. Herein, we demonstrate an innovative method for artificial synthesis of essential α-amino acids from nitric oxide (NO) by reacting with α-keto acids through electrocatalytic process with atomically dispersed Fe supported on N-doped carbon matrix (AD-Fe/NC) as the catalyst. A yield of valine with 32.1 μmol mgcat−1 is delivered at −0.6 V vs. reversible hydrogen electrode, corresponding a selectivity of 11.3 %. In situ X-ray absorption fine structure and synchrotron radiation infrared spectroscopy analyses show that NO as nitrogen source converted to hydroxylamine that promptly nucleophilic attacked on the electrophilic carbon center of α-keto acid to form oxime and subsequent reductive hydrogenation occurred on the way to amino acid. Over 6 kinds of α-amino acids have been successfully synthesized and gaseous nitrogen source can be also replaced by liquid nitrogen source (NO3−). Our findings not only provide a creative method for converting nitrogen oxides into high-valued products, which is of epoch-making significance towards artificial synthesis of amino acids, but also benefit in deploying near-zero-emission technologies for global environmental and economic development.

第一作者：Jiahui Xian, Suisheng Li, Hui Su, Peisen Liao,

通讯作者：Qinghua Liu, Guangqin Li

发表期刊：Angew. Chem. Int. Ed.

在线发表时间：2023-04-18

文章链接：https://onlinelibrary.wiley.com/doi/10.1002/anie.202304007