Fabrication of micro/nanoporous templates with a novel hierarchical structure by anodization of a patterned aluminum surface

Le Shen; Yi Li; Wenjin Zhong; Jingcheng Wu; Jianhua Cheng; Ling Jin; Xing Hu; Zhiyuan Ling

Electrochemistry Communications (May 2021)

Fabrication of micro/nanoporous templates with a novel hierarchical structure by anodization of a patterned aluminum surface

Le Shen,
Yi Li,
Wenjin Zhong,
Jingcheng Wu,
Jianhua Cheng,
Ling Jin,
Xing Hu,
Zhiyuan Ling

Affiliations

Le Shen: Department of Electronic Materials Science and Engineering, College of Materials Science and Engineering, South China University of Technology, Guangzhou, China
Yi Li: Department of Electronic Materials Science and Engineering, College of Materials Science and Engineering, South China University of Technology, Guangzhou, China; South China Institute of Collaborative Innovation, Dongguan, China; Corresponding author.
Wenjin Zhong: Department of Electronic Materials Science and Engineering, College of Materials Science and Engineering, South China University of Technology, Guangzhou, China
Jingcheng Wu: Department of Electronic Materials Science and Engineering, College of Materials Science and Engineering, South China University of Technology, Guangzhou, China
Jianhua Cheng: South China Institute of Collaborative Innovation, Dongguan, China; Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, China
Ling Jin: Department of Electronic Materials Science and Engineering, College of Materials Science and Engineering, South China University of Technology, Guangzhou, China
Xing Hu: Department of Electronic Materials Science and Engineering, College of Materials Science and Engineering, South China University of Technology, Guangzhou, China
Zhiyuan Ling: Department of Electronic Materials Science and Engineering, College of Materials Science and Engineering, South China University of Technology, Guangzhou, China

Journal volume & issue: Vol. 126
p. 107014

Abstract

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Hierarchical functional materials with various micro/nanostructures have attracted widespread attention because of their particular physical and chemical characteristics. Finding appropriate methods for the preparation of hierarchical functional materials has thus become a hot topic for research. In the present work, micro/nanoporous templates with a novel hierarchical structure have been fabricated by anodization of a patterned aluminum surface. Firstly, a layer of nail gel (CA600) is applied to the surface of an electropolished aluminum sheet by spin coating. After drying, interconnected microscale cracks are formed on the surface of the aluminum sheets, forming a patterned aluminum surface. Secondly, the aluminum sheets are anodized in 0.3 M oxalic acid electrolyte at 30–50 V (15 °C) to form micro/nanoporous templates with a novel hierarchical structure. The effect of spinning rate, spinning time, and anodization voltage on the microstructure of the porous templates has been studied in detail. The porous templates can be used to prepare various hierarchical functional materials.

Published in Electrochemistry Communications

ISSN: 1388-2481 (Print); 1873-1902 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Industrial electrochemistry; Science: Chemistry
Website: https://www.journals.elsevier.com/electrochemistry-communications

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