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In this study, a method for synthesizing nano-sized 8 mol% Yttria-Stabilized Zirconia (YSZ-8) materials via the sol–gel approach using polyamino-carboxylic acid as a gel-forming aid is developed. Specifically, ethylenediaminetetraacetate disodium salt (EDTA-Na2) and diethylenetriaminepentaacetic acid (DTPA) are utilized to form the sol–gel in the synthesis process of YSZ-8 materials. DTPA is demonstrated to be more effective than EDTA-Na2 in the gel formation process due to its strong chelating ability with zirconium and yttrium ions. Consequently, the synthesis yields good results with YSZ-8 particle sizes reaching about 20 nm at low calcinated temperatures of 800–900 °C. These results are validated through analytical techniques such as TGA-DSC, SEM–EDS, and XRD. The successful synthesis of YSZ-8 serves as a crucial foundation in the fabrication of solid electrolytes used in solid oxide fuel cells.

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Preparation of Yttria-Stabilized Zirconia (YSZ) Nano-scale Powder by Sol–Gel Method Apply for Preparing Electrolyte of Solid Oxide Fuel Cell

  • 会议论文

  • 发表日期：

    2025年

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  • Manh Quang Vu,
  • Duc Dung Le,
  • Ba-Canh Bui,
  • Ha Hong Cao

摘要

In this study, a method for synthesizing nano-sized 8 mol% Yttria-Stabilized Zirconia (YSZ-8) materials via the sol–gel approach using polyamino-carboxylic acid as a gel-forming aid is developed. Specifically, ethylenediaminetetraacetate disodium salt (EDTA-Na2) and diethylenetriaminepentaacetic acid (DTPA) are utilized to form the sol–gel in the synthesis process of YSZ-8 materials. DTPA is demonstrated to be more effective than EDTA-Na2 in the gel formation process due to its strong chelating ability with zirconium and yttrium ions. Consequently, the synthesis yields good results with YSZ-8 particle sizes reaching about 20 nm at low calcinated temperatures of 800–900 °C. These results are validated through analytical techniques such as TGA-DSC, SEM–EDS, and XRD. The successful synthesis of YSZ-8 serves as a crucial foundation in the fabrication of solid electrolytes used in solid oxide fuel cells.