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Fabrication of Hollow Materials by Fast Pyrolysis of Cellulose Composite Fibers with Heterogeneous Structures


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.

Hohlstrukturen wurden ausgehend von Kompositfasern aus Cuprammonium‐Zellulose durch schnelle Pyrolyse erhalten. Der ganze Prozess dauerte keine 100 s. Der Bildungsmechanismus basiert auf der heterogenen Struktur der Fasern und dem Konzentrationsgefälle der Metalloxide in der Zellulosematrix.

Authors:   Yue Dong, Baoquan Jia, Feiya Fu, Heyou Zhang, Lina Zhang, Jinping Zhou
Journal:   Angewandte Chemie
Year:   2016
Pages:   n/a
DOI:   10.1002/ange.201607455
Publication date:   27-Sep-2016
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