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Topochemical Synthesis of 2D Carbon Hybrids through Self‐Boosting Catalytic Carbonization of a Metal–Polymer Framework
Author(s) -
Zhang Qiao,
Zhou Yanping,
Xu Feng,
Lin Huijuan,
Yan Yan,
Rui Kun,
Zhang Chenjun,
Wang Qingqing,
Ma Zhongyuan,
Zhang Yao,
Huang Kama,
Zhu Jixin,
Huang Wei
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201810434
Subject(s) - carbonization , materials science , nanosheet , catalysis , nanoparticle , nanotechnology , polymer , carbon fibers , chemical engineering , graphene , hybrid material , metal , chemistry , organic chemistry , composite number , scanning electron microscope , composite material , engineering , metallurgy
Two‐dimensional (2D) carbon hybrids have promise in various areas such as energy storage and catalysis. Simple methods for controllable fabrication of 2D graphitic carbon hybrids in a scalable manner remains challenging. Now, a microwave‐assisted strategy for mass production of 2D carbon hybrids based on self‐boosting catalytic carbonization of a metal–agarose framework is demonstrated. Hybrids including hollow Fe 3 C nanoparticles, Ni/Co nanoparticles, and hollow FeO x nanoparticles uniformly embedded in 2D graphitic carbon nanosheets (GCNs) are obtained, demonstrating the generality of the approach. Metal–polymer coordination and microwave‐enabled fast catalytic decomposition of precursors play vital roles in facilitating the formation of the nanosheet structure. The resulting FeO x ‐GCNs hybrid exhibits superior lithium‐storage performance (1118 mAh g −1 at 500 mA g −1 and 818 mAh g −1 at 2000 mA g −1 after 1200 cycles).