Upcycling old hard drives into polishing machines and rotating disk electrodes

IF 2.6 4区化学 Q3 ELECTROCHEMISTRY

Journal of Solid State Electrochemistry Pub Date : 2025-03-12 DOI:10.1007/s10008-025-06261-w

Anthony Ranaivoniriana, Ahmed Ben Akouche, Axel Desnoyers de Marbaix, Daniel Rose, Yaovi Holade, Boniface Kokoh, Dodzi Zigah, Karine Servat, Teko Napporn, Sylvain Argentieri, Emmanuel Maisonhaute

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引用次数: 0

Abstract

Following technological evolutions, commercial electrochemical devices are now very compact, but often hard to repair, so that we observe an increase of open-source electrochemical hardware. In this paper, we exploit the former hard drive technology to recycle the brushless motor in order to build a polishing machine and a rotating disk electrode (RDE). Each step of the construction is detailed. The RDE performance is evaluated by linear sweep voltammetry of the classical ferrocenedimethanol redox system. Quantification thanks to the Levich equation provides a diffusion coefficient of ferrocenedimethanol of (4.6 ± 1) × 10⁻¹⁰ m² s⁻¹ in aqueous potassium chloride electrolyte, which is close to the literature, thus validating home-made RDE. Using these devices with the PassStat, an open-source potentiostat allows to build an electrochemical set-up at a very reduced price (less than 150 € for the three devices). The approach will be of specific interest for teaching instrumentation and for countries of lower resources.

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将旧硬盘升级改造成抛光机和旋转磁盘电极

随着技术的发展，商用电化学设备现在非常紧凑，但往往难以维修，因此我们观察到开源电化学硬件的增加。本文利用原有的硬盘技术回收无刷电机，构建抛光机和旋转圆盘电极（RDE）。施工的每一步都是详细的。采用线性扫描伏安法对经典二茂铁二甲醇氧化还原体系的RDE性能进行了评价。利用Levich方程定量得到二茂铁甲醇在氯化钾水溶液中的扩散系数为（4.6±1）× 10−10 m2 s−1，与文献接近，从而验证了自制的RDE。将这些设备与PassStat（一个开源的电位器）一起使用，可以以非常低的价格（三个设备的价格低于150欧元）建立电化学设置。这种方法将特别适用于教学仪器和资源较低的国家。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Solid State Electrochemistry 工程技术-电化学

CiteScore

4.80

自引率

4.00%

发文量

227

审稿时长

4.1 months

期刊介绍： The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry. The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces. The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis. The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.