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Updated: Jul 18, 2026

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微观结构和离子导电性调查的萨马化 (Sm_0.2Ce_0.8O_1.9) 电解质,通过模板制造方法制备

Dilara Güçtaş¹, Vedat Sariboğa¹, M A Faruk Öksüzömer¹

¹Department of Chemical Engineering, Faculty of Engineering, İstanbul University-Cerrahpaşa, İstanbul, Turkey.

Turkish journal of chemistry

|September 18, 2023

概括

纤维素模板产生了Sm_0.2Ce_0.8O_1.9 (SDC20) 电解质,其离子导电性优越. 本研究详细介绍了优化SDC20电解质的合成,表征和谷物生长机制.

科学领域:

材料科学材料科学材料科学
固态化学固态化学
电化学电化学电化学

背景情况:

配的 (Sm_0.2Ce_0.8O_1.9,SDC20) 是固体氧化物燃料电池的一个有前途的电解质材料.
优化SDC20合成方法对于提高其离子导电性和性能至关重要.

研究的目的:

使用纤维素模板 (CT) 和PVA模板 (PVAT) 方法合成SDC20电解质.
研究合成方法对粉末特性,谷物生长行为和离子导电性的影响.
为了确定主导的扩散机制,并计算CT和PVATSDC20的谷物生长激活能量.

主要方法:

使用热重量计/差异热分析 (TG/DTA),X射线衍射 (XRD) 和扫描电子显微镜 (SEM) 的粉末表征.
在各种温度和持续时间下进行颗粒烧结.
通过线性截取方法在SEM显微镜上进行颗粒大小分析.
电化学阻抗光谱 (EIS) 用于确定离子导电性.

主要成果:

通过CT和PVAT方法成功合成了SDC20电解质.
研究了谷物生长行为和主导扩散机制,首次确定了激活能量.
使用纤维素模板方法实现了0.050 S cm-1的最高离子导电性.

结论:

纤维素模板是生产具有增强离子导电性的SDC20电解质的有效方法.
了解谷物生长机制是优化SDC20电解质性能的关键.
该CT方法为电化学应用提供了高性能SDC20电解质的途径.

关键词:

在SDC20中,SDC20是指SDC20的位置.在SOFC中,SOFC是SOFC.电解质的电解质是一种电解质.谷物生长的增长谷物生长的增长烧结烧结是因为烧结.模板设计模板设计

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