| La0.9Sr0.1Ga0.8Mg0.2O3-α的微乳液法合成及其质子导电性研究 |
| Proton Conduction in La0.9Sr0.1Ga0.8Mg0.2O3-α Ceramics Prepared by Microemulsion Method |
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| 摘要: 采用微乳液法合成了La0.9Sr0.1Ga0.8Mg0.2O3-α的共沉淀前驱体，经初烧和烧结后制得La0.9Sr0.1Ga0.8Mg0.2O3-α陶瓷样品，TEM和SEM分析结果表明陶瓷样品具有良好的微观结构，XRD分析结果表明陶瓷样品已形成了单相的LaGaO3钙钛 |
| 关键词: LaGaO3 质子导体 微乳液法 |
| 基金项目: |
| Abstract: The co-precipitate precursor of La0.9Sr0.1Ga0.8Mg0.2O3-α ceramics was prepared by microemulsion method， and the ceramics were obtained by calcining and sintering the precursor. The results of TEM and SEM indicate that the ceramic specimen has a good morphology， and XRD result confirms that the ceramics is belong to a single orthorhombic phase of perovskite-type LaGaO3. The conduction behavior was studied by using gas concentration cell and gas electrochemical permeation methods， and the excellent proton conduction was observed. The experimental values of the hydrogen concentration cell coincides well with the theoretical values， and the ionic transport number is unity. The observed rate of electrochemical hydrogen permeation is close to the theoretical rate， verifying that the ceramics is an excellent proton conductor under hydrogen atmosphere. |
| Keywords: LaGaO3 proton conductor microemulsion |
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| 朱剑莉,张 峰,陈 成,马桂林.La0.9Sr0.1Ga0.8Mg0.2O3-α的微乳液法合成及其质子导电性研究[J].无机化学学报,2007,23(9):1621-1626. |
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