ReNiO3 (Re = Pr, Sm, Eu) 和质子导电性的制备方法
Hongzheng Li1,2, Ying Li1,2, Bo Li1,2
1School of Metallurgy, Northeastern University China liying@mail.neu.edu.cn.
RSC advances
|January 4, 2024
概括
稀土尼基酸盐 (ReNiO3) 固体电解质显示出有希望的探测能力. SmNiO3和EuNiO3在0.5-10%的H2范围内显示了精确的测量,这表明了探测应用的潜力.
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:
- 像ReNiO3这样的矿氧化物被用于电化学应用.
- 了解它们在含大气中的行为对于开发新的传感器至关重要.
研究的目的:
- 为了合成和表征ReNiO3 (Re = Pr, Sm, Eu) 固体电解质.
- 为了研究它们在空气和中的电阻和质子导电性.
- 为了评估它们作为传感器的潜力.
主要方法:
- 索尔凝合成,然后在氧气中进行高温烧结.
- 在空气和含的大气中测量直流电阻.
- 在X射线光电子光谱学 (XPS) 分析.
- 质子运输号的确定.
- 评价探测性质的评估.
主要成果:
- 与空气相比,ReNiO3材料在气氛中表现出明显更高的电阻.
- 在处理后,XPS显示了Ni2+比例的增加.
- 在200°C以下,SmNiO3和EuNiO3显示出近纯质子导电性.
- 在5%的H2-Ar.中,在200°C时获得了1.08 × 10-4 S cm-1 (SmNiO3) 和1.83 × 10-5 S cm-1 (EuNiO3) 的导电性.
- SmNiO3和EuNiO3在0.5-10%H2范围内表现出精确的探测.
结论:
- SmNiO3和EuNiO3是导质子固体电解质和传感器的有希望的候选物.
- 它们的性能受到稀土元素和的部分压力的影响.
- 进一步的研究可以为特定的传感应用优化这些材料.
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