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一个核心外的矿复合式空气电极,具有热膨胀偏移和机械支持功能,用于高耐用性可逆质子陶电池

Kanghua Shi¹, Yufei Song¹, Yixiao Song¹

¹State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|April 14, 2025

概括

研究人员使用一种新型核心外矿复合材料开发了一种可逆质子陶细胞 (RPCC) 的耐用空气电极. 这种材料增强了RPCCs.

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
可再生能源可再生能源是可再生能源.

背景情况:

可逆质子陶电池 (RPCC) 是可再生能源转换的关键.
目前的RPCC面临的局限性是由于昂贵的和环境相关的基空气电极.
基于SrFeO_3-δ (SF) 的替代矿具有前景,但缺乏耐用性.

研究的目的:

为RPCCs开发一种高耐用性和有效的气电极材料.
为了克服基于SF的矿的耐用性问题,例如热膨胀不匹配和机械不稳定性.
通过固态反应创造一种新的复合材料.

主要方法:

在SrFeO_3-δ (SF) 和一个负热膨胀 (NTE) 材料,ZrW₂O₈ (ZWO) 之间的固态反应.
化SF和ZWO混合物以实现ZWO在现场内融入SF网格.
形成一个核心外复合物:单矿 (SP-SFZW) 核心和双矿 (DP-SFZW) 外.

主要成果:

一种新的核心外矿复合物 (SP-SFZW/DP-SFZW) 已成功合成.
双矿外 (DP-SFZW) 作为热膨胀抑制器和机械支.
复合电极表现出与SF相比较的催化活性,具有显著增强的耐用性,减轻裂纹和分层.

结论:

开发的核心外矿复合材料为RPCC空气电极提供了强大的解决方案.
这种新型材料方法解决了阻碍RPCC商业化的主要局限性.
该研究提出了一个有前途的策略,用于创建持久和高效的能量转换设备.

关键词:

空气电极电极是空气电极.这是一个复合材料.核心-外结构的核心-外结构.佩洛夫斯基特 (Perovskite) 是一种矿物.可逆的质子陶细胞.

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