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A General Strategy for the Preparation of Hollow Carbon Nanocages by NH 4 Cl‐Assisted Low‐Temperature Heat Treatment
Author(s) -
Teng Shang Jun,
Wang Jian g,
Xia Bao Yu,
Wang Xiao Xia
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201002385
Subject(s) - nanocages , carbon fibers , nanotechnology , materials science , chemical engineering , chemistry , composite material , organic chemistry , catalysis , engineering , composite number
Empty cages : Iron/graphite core–shell nanoparticles are produced by pyrolysis of a mixture of acetylene and iron carbonyl. Then, the core–shell nanoparticles are heat treated in the range of 300–500 °C in the presence of NH 4 Cl. After filtration in water, the trapped iron particles are completely removed and hollow carbon nanocages with a good graphitic structure are obtained (see graphic).