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Gram‐Scale Synthesis of High‐Loading Single‐Atomic‐Site Fe Catalysts for Effective Epoxidation of Styrene
Author(s) -
Xiong Yu,
Sun Wenming,
Xin Pingyu,
Chen Wenxing,
Zheng Xusheng,
Yan Wensheng,
Zheng Lirong,
Dong Juncai,
Zhang Jian,
Wang Dingsheng,
Li Yadong
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202000896
Subject(s) - catalysis , styrene , materials science , yield (engineering) , selectivity , metal , atom (system on chip) , nanotechnology , polymer , chemical engineering , combinatorial chemistry , organic chemistry , chemistry , metallurgy , computer science , copolymer , composite material , engineering , embedded system
Single‐atomic‐site (SAS) catalysts, a new frontier of catalysts, always show extremely high atom efficiency and unexpected catalytic properties. Herein, a pyrolyzing coordinated polymer (PCP) strategy is developed, which is facile and widely applicable in the synthesis of a series of SAS catalysts including SAS‐Fe, SAS‐Ni, SAS‐Cu, SAS‐Zn, SAS‐Ru, SAS‐Rh, SAS‐Pd, SAS‐Pt, and SAS‐Ir. The as‐obtained SAS catalysts can be easily synthesized at gram scale and the metal loading of SAS‐Fe catalysts achieves a record value of 30 wt%, which meets the requirement of practical applications. Moreover, it is discovered that SAS‐Fe catalysts show unprecedented catalytic performance for epoxidation of styrene using O 2 as the only oxidant (yield: 64%; selectivity: 89%), while Fe nanoparticles and ironporphyrin are inactive. This discovery is believed to pave the way for exploiting the unparalleled properties of SAS catalysts and promoting their industrial applications.