Monatomic site iron catalyst with adjustable coordination environment as well as preparation method and application of monatomic site iron catalyst

• Main Authors: ZHAN LINXIAO, SHANG HENGSHUAI, WANG ZHENDONG, FANG ZHAOBIN, WEI XIANWEN, YE MINGFU, WU KONGLIN, SHI LUOXIANG
• Format: Patent
• Language: Chinese; English
• Published: 18.03.2022
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides a monatomic site iron catalyst with an adjustable coordination environment and a preparation method and application thereof, the preparation method comprises the following steps: under an ice-water bath condition, adding concentrated sulfuric acid into a ferrocene formaldehyde solution, mixing a pyrrole solution drop by drop, and continuously stirring for reaction in the ice-water bath; carrying out reflux heating reaction to obtain a precursor, grinding the precursor and a nitrogen-containing compound, and carrying out pyrolysis in an inert atmosphere to obtain iron-nitrogen-sulfur co-doped carbon; and treating with a hydrochloric acid solution, washing and drying to obtain the coordination environment adjustable monatomic site iron catalyst. Compared with the prior art, the method for preparing the monatomic site iron has the advantages that the coordination environment and the carrier electronic structure can be controlled and adjusted, the loading capacity of the monatomic site iron