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PrMn_0.5M_0.5O₃ (M = Cr, Fe, Co, Ni) 矿的合成,表征和电催化特性

Besarta Cheliku Ramadani^1,2, Jeta Sela^1,2, Leon Stojanov²

¹Department of Chemistry, Faculty of Natural Sciences and Mathematics, University of Tetovo, Ilinden n.n., 1200 Tetovo, North Macedonia.

Materials (Basel, Switzerland)

|February 13, 2025

概括

这项研究合成和表征了用于电催化的新型矿 (PrMn0.5M0.5O3). PrMn0.5Fe0.5O3对氧化物氧化具有很高的活性,而PrMn0.5Fe0.5O3和PrMn0.5Co0.5O3在过氧化氧化方面表现出高效率.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
固态化学固态化学

背景情况:

矿氧化物是具有调节性质的多功能材料.
开发高效的电催化剂对于能源转换和储存技术至关重要.

研究的目的:

为了合成和描述公式为PrMn0.5M0.5O3 (M = Cr, Fe, Co, Ni) 的矿.
为了研究它们对氧化反应的电催化特性.

主要方法:

溶液燃烧合成 (甘氨酸燃料) 和sol-gel燃烧合成 (酸燃料).
使用X射线粉碎衍射 (XRPD),扫描电子显微镜 (SEM),能量分散X射线光谱 (EDX) 和红外光谱学进行表征.
电催化活性通过对石墨烯浸石墨电极 (PIGE) 的循环电压测量来评估.

主要成果:

获得了纯净和同结构的矿,在PNMA空间群中结晶.
SEM揭示了多孔形态,EDX证实了预期的原子比.
PrMn0.5Fe0.5O3对OH-氧化表现出高的电催化活性.
在0.6V的峰值潜力下,PrMn0.5Fe0.5O3和PrMn0.5Co0.5O3对H2O2氧化具有显著的效率.

结论:

合成的PrMn0.5M0.5O3矿是有前途的电催化剂.
在氧化氧化过程中,PrMn0.5Fe0.5O3特别有效.
PrMn0.5Fe0.5O3和PrMn0.5Co0.5O3显示出对过氧化氧化应用的潜力.

关键词:

在EDX中,EDX是EDX.红外光谱法红外光谱法这就是SEM SEM.在XRPD中使用XRPD.循环电压测量是指循环电压测量.双 Perowskites 是一个双的矿物.

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