稀土金属掺杂锆酸钡钙钛矿:质子陶瓷燃料电池极和电解质材料的研究进展

IF 9.1 2区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Progress in Solid State Chemistry Pub Date : 2021-09-01 DOI:10.1016/j.progsolidstchem.2021.100325
Sefiu Abolaji Rasaki , Changyong Liu , Changshi Lao , Zhangwei Chen
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引用次数: 27

摘要

稀土金属掺杂锆酸钡(RE+-BaZrO3)材料是离子导体和电子导体,目前在质子陶瓷燃料电池(pcfc)中表现出双重功能。具体来说,RE+-BaZrO3可以作为pcfc的电极和电解质。它们在中等温度(≥500℃)下具有可观的电子离子电导率(e−/H+/O2−),与其他钙钛矿相比是更好的选择。然而,在这些材料(RE+-BaZrO3)中,质子吸收弱和催化位点不足等挑战仍然存在,需要解决。从物理化学的角度来看,通过结构工程对质子摄取机制和催化位点的深入了解,可以使改进成为可能。在此基础上,本文综述了合成应用对调整RE+-BaZrO3材料结构性能的重要性,从而提高其现有性能。并对材料改性的最新进展进行了讨论。重点讨论了作为pcfc电极和电解质的RE+-BaZrO3材料的设计。明确地讨论了与物质质子吸收有关的反应机理。结合相关分析结果,指出了提高基于RE+-BaZrO3材料电极和电解质性能的主要途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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A review of current performance of rare earth metal-doped barium zirconate perovskite: The promising electrode and electrolyte material for the protonic ceramic fuel cells

Rare-earth metal doped barium zirconate (RE+-BaZrO3) materials are ionic and electronic conductors currently showing double functions in the protonic ceramic fuel cells (PCFCs). Specifically, RE+-BaZrO3 are relevant as electrode and electrolyte for PCFCs. They have appreciable electron-ionic conductivity (e/H+/O2−) at moderate temperature (≥500 °C) making them a better choice when compared to other perovskites. However, in these materials (RE+-BaZrO3), challenges such as weak proton uptake and insufficient catalytic sites still exist and need to be addressed. From physic-chemical perspectives, improvement can be made possible through deeper understanding of proton uptake mechanism and catalytic sites resulting from structure engineering. Based on that, this review focuses on importance of synthesis application for tuning the structural properties of RE+-BaZrO3 materials, and hence enhances their current performances. The current advances made through material modification are discussed too. The main emphasis and discussions are on RE+-BaZrO3 material design as electrode and electrolyte for PCFCs. The reaction mechanisms associated with the material proton uptakes are explicitly discussed. Putting all relevant analytical results into consideration, the primary approaches to improve the performance of the electrode and electrolyte-based on RE+-BaZrO3 materials are indicated.

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来源期刊
Progress in Solid State Chemistry
Progress in Solid State Chemistry 化学-无机化学与核化学
CiteScore
14.10
自引率
3.30%
发文量
12
期刊介绍: Progress in Solid State Chemistry offers critical reviews and specialized articles written by leading experts in the field, providing a comprehensive view of solid-state chemistry. It addresses the challenge of dispersed literature by offering up-to-date assessments of research progress and recent developments. Emphasis is placed on the relationship between physical properties and structural chemistry, particularly imperfections like vacancies and dislocations. The reviews published in Progress in Solid State Chemistry emphasize critical evaluation of the field, along with indications of current problems and future directions. Papers are not intended to be bibliographic in nature but rather to inform a broad range of readers in an inherently multidisciplinary field by providing expert treatises oriented both towards specialists in different areas of the solid state and towards nonspecialists. The authorship is international, and the subject matter will be of interest to chemists, materials scientists, physicists, metallurgists, crystallographers, ceramists, and engineers interested in the solid state.
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