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A Versatile, Ultralight, Nitrogen‐Doped Graphene Framework
Author(s) -
Zhao Yang,
Hu Chuangang,
Hu Yue,
Cheng Huhu,
Shi Gaoquan,
Qu Liangti
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201206554
Subject(s) - graphene , supercapacitor , adsorption , nanotechnology , materials science , doping , metal organic framework , block (permutation group theory) , catalysis , computer science , electrode , chemical engineering , chemistry , organic chemistry , optoelectronics , electrochemistry , engineering , geometry , mathematics
Graphene lite : A density of (2.1±0.3) mg cm −3 , the lowest to date for a graphene framework architecture, is achieved by preparing an ultralight, N‐doped, 3D graphene framework (see photo of a block of the material balancing on a dandelion). Its adsorption capacity for oils and organic solvents is much higher than that of the best carbonaceous sorbents, and it is a promising electrode material for supercapacitors (484 F g −1 ) and as a metal‐free catalyst for the oxygen reduction reaction.