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萨马兴奋剂对基酸基无陶的储能性能的影响

Xuyao Tang¹, Wanting Hu¹, Vladimir Koval²

¹School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, U.K.

ACS applied materials & interfaces

|September 10, 2025

概括

在无双酸 - - 酸陶中对萨马进行兴奋剂,可以增强压电和储能性能. 这些改造的电陶在能源转换和储存应用中表现有前途.

科学领域:

材料科学材料科学材料科学
固态化学固态化学
纳米技术纳米技术

背景情况:

由于环境和健康问题,对无电陶的需求日益增加.
在形态相边界附近的酸盐-酸盐-酸盐 (BNT-BT) 固体溶液表现出理想的压电和铁电特性.
含有的材料存在毒性风险,需要更安全的替代品.

研究的目的:

研究 (Sm) 兴奋剂对BNT-6BT无电陶结构,介电,压电和储能性能的影响.
探索BNT-BT矿结构的A位点上的Sm替代.
评估Sm-doped BNT-BT在储能和压电应用中的潜力.

主要方法:

合成BNT-6BT陶,添加0.5%摩尔%和5%摩尔%的萨马 (Sm),标记为BNTS0.5和BNTS5.5的陶.
由Sm兴奋剂诱导的结构修饰和A位点障碍的表征.
介电电容率作为温度和频率的函数的分析.
测量压电系数 (d33) 和储能特性 (可回收能量密度,效率).

主要成果:

萨马兴奋剂诱导纳米级A位点障碍,改变介电行为.
BNTS0.5具有很高的压电系数 (d33 = 164.7 pC N-1).
在室温下,BNTS5显示出出色的可回收能量密度 (Wrec = 3.88 J cm−3) 和储能效率 (η = 71.06%),具有很高的可回收能量储能强度 (12.93 J V−1 cm−2).

结论:

萨马兴奋剂有效地改变了BNT-BT无电陶的特性.
BNTS0.5是压电能量转换的一个有希望的候选者.
由于其高能量密度和效率,BNTS5显示了先进的储能应用的特殊潜力.

关键词:

陶制品的陶制品是一种陶.储能储能是一种储能.铁电机电机电机电机电机电机这是一种压电式电体.极地纳米区域极地纳米区域放松器放松器放松器

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