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Fabrication of Hollow Materials by Fast Pyrolysis of Cellulose Composite Fibers with Heterogeneous Structures
Author(s) -
Dong Yue,
Jia Baoquan,
Fu Feiya,
Zhang Heyou,
Zhang Lina,
Zhou Jinping
Publication year - 2016
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.201607455
Subject(s) - kirkendall effect , ostwald ripening , fabrication , materials science , composite number , cellulose , pyrolysis , microfiber , composite material , fiber , chemical engineering , nanotechnology , metallurgy , medicine , alternative medicine , pathology , engineering
A facile method for the fabrication of inorganic hollow materials from cuprammonium cellulose composite filaments based on fast pyrolysis has been developed. Unlike Ostwald ripening, approaches based on the Kirkendall effect, and other template methods, this process yielded hollow materials within 100 s. The heterogeneous structure of the cellulose composite fibers and the gradient distribution of the metal oxides are the main reasons for the formation of the hollow structure. The diameter, wall thickness, and length of the hollow microfibers could be conveniently controlled. With their perfect morphology, these hollow structural materials have great potential for use in various fields.