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A review of key parameters for effective electrophoretic deposition in the fabrication of solid oxide fuel cells

电泳沉积固体氧化物燃料电池关键参数研究综述

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Abstract

This paper reviews recent progress in electrophoretic deposition (EPD), particularly in solid oxide fuel cells (SOFCs). EPD is a simple, cost-effective, and geometrical flexible colloidal process. With its excellent control of thickness and other morphological characteristics, it is favored for the fabrication of SOFCs because each component layer of an SOFC has different requirements. However, the effectiveness of EPD is closely related to the suspension stability and EPD processing parameters. Maintaining a stable suspension and optimizing the EPD processing parameters are essential to achieve a dense and uniform deposition layer. Key parameters in maintaining the suspension stability are generally categorized into colloidal related parameters, including particle size and solid loading, and suspension media related parameters, including dielectric constant and conductivity. The effects of these parameters are often reflected by the zeta potential of the suspension, which can be manipulated by using charging agents to maintain a stable state. The deposition time and applied voltage are key parameters in optimizing the EPD process through their effects on the deposition rate. The effects of these parameters on particle surface charges and on the EPD mechanism are discussed.

中文概要

目的

电泳沉积是一种简单且具有成本效益的涂层技 术。其出色的形态特征控制,适用于制造需要每 个组件层都具有其独特属性的固体氧化物燃料 电池。本文旨在综述电泳沉积的最新进展、制备 稳定悬浮液所需的关键因素以及通过电泳沉积 技术制造固体氧化物燃料电池所涉及的相关参 数。

创新点

1. 分析了维持悬浮液稳定性的关键参数,包括粒 径和固体载荷等胶体相关参数以及介电常数和 电导率等悬浮介质相关参数。2. 讨论了这些参数 对粒子流动性、电动电位和电泳沉积技术于固体 氧化物燃料电池应用的综合效应。

方法

1. 对以往的研究进行综述,并总结电泳沉积技术 制造固体氧化物燃料电池组件层的发展(表1), 包括稳定悬浮液的制备以及电泳沉积工艺关键 参数的优化。

结论

鉴于每个固体氧化物燃料电池组件层都涉及不同 类型的材料,且每种材料都需要特定的参数来实 现有效沉积,因此,为了获得各组件层所需要的 性能,制备悬浮液配方的正确性和电泳沉积工艺 的优化显得至关重要。

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Correspondence to Andanastuti Muchtar.

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Project supported by the Ministry of Higher Education Malaysia (No. FRGS/1/2015/TK10/UKM/01/2) and the Center for Research and Instrumentation Management, Universiti Kebangsaan Malaysia (UKM), Malaysia

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Aznam, I., Mah, J.C.W., Muchtar, A. et al. A review of key parameters for effective electrophoretic deposition in the fabrication of solid oxide fuel cells. J. Zhejiang Univ. Sci. A 19, 811–823 (2018). https://doi.org/10.1631/jzus.A1700604

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  • DOI: https://doi.org/10.1631/jzus.A1700604

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