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Synthesis of Discrete and Dispersible Hollow Carbon Nanospheres with High Uniformity by Using Confined Nanospace Pyrolysis
Author(s) -
Lu AnHui,
Sun Tao,
Li WenCui,
Sun Qiang,
Han Fei,
Liu DongHai,
Guo Yue
Publication year - 2011
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.201105486
Subject(s) - polystyrene , dispersity , materials science , pyrolysis , nanoreactor , polymer , carbon fibers , chemical engineering , shell (structure) , coating , nanoparticle , nanotechnology , composite material , polymer chemistry , composite number , engineering
Many spheres of influence : Surface coating of monodisperse polystyrene (PS) nanosphere seeds with a phenol‐containing polymer (PF) and then silica forms a dual core–shell structure PS@PF@SiO 2 (see picture). Subsequent pyrolysis results in discrete, dispersible, and uniform hollow carbon nanospheres (HCSs). The outer silica shell serves as a nanoreactor and thus prevents the polymer and carbon layers from conglutination and sintering.