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Hierarchical Metal Oxides Assembled by Nanocrystallites Via a Simple Bio‐Inspired Route
Author(s) -
Dong Qun,
Su Huilan,
Song Fang,
Zhang Di,
Wang Na
Publication year - 2007
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2006.01392.x
Subject(s) - eggshell membrane , materials science , crystallite , nanotechnology , porosity , metal , chemical engineering , oxide , nanocrystal , ceramic , nanostructure , membrane , chemistry , metallurgy , composite material , biochemistry , engineering
A mild and simple bio‐inspired route was successfully developed to synthesize biomorphic metal oxides with hierarchical structures assembled by nanocrystallites. The biomaterials eggshell membrane (ESM) was used as the template in the synthesis process. Based on the directing and capping functions of ESM biomacromolecules for oxide nanocrystallites, the conformation transformation of the natural ESM was achieved to construct 3D interwoven porous ceramic materials. In addition, these building units nanocrystallites exhibited diverse morphologies and had a narrow size distribution with an average crystallite size of 5.4 nm for ZnO, 9.5 nm for Co 3 O 4 , and 11 nm for PdO, respectively.