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Synthesis of Porous Zinc-Based/Zinc Oxide Composites via Sol-Gel and Ambient Pressure Drying Routes

Lookup NU author(s): Dr Xiao Han, Jonathan Harris, Professor Lidija Siller



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Porous Zn-based and ZnO composites are successfully fabricated via the sol-gel process and ambient pressure drying (APD) method using hexane as the drying solvent for the reduction of capillary force during drying process. Various highly porous Zn-based phases (Zn1-based and Zn5-based) that are studied by X-ray diffraction analysis, scanning electron microscopy and transmission electron microscopy, show that they contribute through heat treatment (at 200°C) to the development of ambient pressure dried nanoporous wurtzite (hexagonal) ZnO. A macroporous flower-like structure consisting of nanosheets is observed in porous Zn-based composites and nanoporous structure is observed within platelets of ZnO nanoparticles. Possible routes for preparing highly porous Zn-based/ZnO composites are discovered by detailing the process for ambient pressure drying synthesis of porous wurzite ZnO.

Publication metadata

Author(s): Han X, Harris J, Siller L

Publication type: Article

Publication status: Published

Journal: Journal of Materials Science

Year: 2018

Volume: 53

Issue: 11

Pages: 8170-8179

Print publication date: 01/06/2018

Online publication date: 26/02/2018

Acceptance date: 12/02/2018

Date deposited: 27/02/2018

ISSN (print): 0022-2461

ISSN (electronic): 1573-4803

Publisher: Springer New York LLC


DOI: 10.1007/s10853-018-2138-2


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