Highly Catalytically Active High-spin Single-atom Iron Catalyst Supported by Catechol-containing Microporous 2D Polymer

Traditionally, Fe-SACs are prepared through energy-intense processes, which often lead to the loss of precision in structural features from the starting substrates and impeding rational design. We herein described the synthesis of a unique catechol-containing porous polymer with designed features in...

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Bibliographic Details
Published inChemistry letters Vol. 49; no. 10; pp. 1240 - 1244
Main Authors Li, Guangwen, Gu, Defa, Cao, Rui, Hong, Song, Liu, Yushan, Liu, Yuzhou
Format Journal Article
LanguageEnglish
Published TOKYO Chemical Soc Japan 05.10.2020
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
Porous organic polymer
SODIUM-BOROHYDRIDE
NANOPARTICLES
CARBON
SPECTROSCOPY
REDUCTION
MODELS
STRATEGY
SITES
Single-atom iron catalyst
Catechol
ELECTRONIC-STRUCTURE
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Summary:Traditionally, Fe-SACs are prepared through energy-intense processes, which often lead to the loss of precision in structural features from the starting substrates and impeding rational design. We herein described the synthesis of a unique catechol-containing porous polymer with designed features in the substrates maintained, affording atomically dispersed iron catalyst (Fe-SAC) through treatment of ferrous chloride (FeCl2). An aberration-corrected scanning transmission electron microscope (AC-STEM) and synchrotron X-ray absorption spectroscopy (XAS) were employed to shed light on the local coordination geometry of the atomically dispersed iron catalyst. The resulting Fe-SAC exhibits excellent catalytic performance in reduction of nitroaromatics with highest molar K-app among all Fe based catalysts.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.200416