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Anodization is a cost-effective technique to nano-engineer various metals, however, optimizations have been mostly restricted to Al and Ti, and for easy to manage polished and flat substrates, limiting industrial translation. Here, we aim at standardizing and simplifying anodization of ten metals, attempting to make metal nano-engineering more accessible. In a world-first attempt, we synthesize a standard electrolyte to fabricate controlled nanostructures on various metals, taking a close look at the influence of the substrate topography, electrolyte composition, and electrolyte aging (repeated use of same electrolyte) towards designing a standard nano-engineering strategy. Anodization of curved substrates (metal wires) with micro-roughness allows for ease of industrial translation across various applications. This study is a step closer to standardizing anodization and fabrication of controlled nanotopography on various metallic surfaces, while maintaining scalability and ease of use.

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Publication history

Received: 26 May 2022
Revised: 24 July 2022
Accepted: 01 August 2022
Published: 21 September 2022

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© Tsinghua University Press 2022

Acknowledgements

Acknowledgements

Divya Chopra and Tianqi Guo are supported by the UQ Graduate School Scholarships (UQGSS) funded by the University of Queensland. Karan Gulati is supported by the National Health and Medical Research Council (NHMRC) Early Career Fellowship (No. APP1140699). The authors acknowledge the facilities, and the scientific and technical assistance, of the Australian Microscopy & Microanalysis Research Facility at the centre for microscopy and microanalysis, the University of Queensland.

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Email: nanores@tup.tsinghua.edu.cn

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