High-Entropy Perovskite Oxide: A New Opportunity for Developing Highly Active and Durable Air Electrode for Reversible Protonic Ceramic Electrochemical Cells

IF 31.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters Pub Date : 2022-11-09 DOI:10.1007/s40820-022-00967-6

Zuoqing Liu, Zhengjie Tang, Yufei Song, Guangming Yang, Wanru Qian, Meiting Yang, Yinlong Zhu, Ran Ran, Wei Wang, Wei Zhou, Zongping Shao

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Abstract

Highlights

Synthesis of high-entropy perovskite oxide for air electrode in reversible proton ceramic electrochemical cells.
Triple-conducting high-entropy air electrodes exhibit excellent structural stability and oxygen catalytic activity.
The peak power density and current density of the cell with high-entropy air electrode in the fuel cell and electrolysis modes are 1.21 W cm⁻² and − 1.95 A cm⁻² at 600 °C, respectively.

Abstract Image

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高熵过氧化物：为可逆质子陶瓷电化学电池开发高活性和耐用空气电极的新机遇

亮点：合成用于可逆质子陶瓷电化学电池空气电极的高熵过氧化物。三导电高熵空气电极具有优异的结构稳定性和氧催化活性。使用高熵空气电极的电池在燃料电池和电解模式下的峰值功率密度和电流密度分别为 1.21 W cm-2 和 - 1.95 A cm-2（600 °C）。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

42.40

自引率

4.90%

发文量

715

审稿时长

13 weeks

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary and open-access journal that focus on science, experiments, engineering, technologies and applications of nano- or microscale structure and system in physics, chemistry, biology, material science, pharmacy and their expanding interfaces with at least one dimension ranging from a few sub-nanometers to a few hundreds of micrometers. Especially, emphasize the bottom-up approach in the length scale from nano to micro since the key for nanotechnology to reach industrial applications is to assemble, to modify, and to control nanostructure in micro scale. The aim is to provide a publishing platform crossing the boundaries, from nano to micro, and from science to technologies.