Rapid Fabrication of Electrodes for Symmetrical Solid Oxide Cells by Extreme Heat Treatment

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外文摘要：Symmetrical solid oxide cells(SSOCs)are very useful for energy generation and conversion.To fabricate the electrode of SSOC,it is very time-consuming to use the conventional approach.In this work,we design and develop a novel method,extreme heat treatment(EHT),to rapidly fabricate electrodes for SSOC.We show that by using the EHT method,the electrode can be fabricated in seconds(the fastest method to date),benefiting from enhanced reaction kinetics.The EHT-fabricated electrode presents a porous structure and good adhesion with the electrolyte.In contrast,tens of hours are needed to prepare the electrode by the conventional approach,and the prepared electrode exhibits a dense structure with a larger particle size due to the lengthy treatment.The EHT-fabricated electrode shows desirable electrochemical performance.Moreover,we show that the electrocatalytic activity of the perovskite electrode can be tuned by the vigorous approach of fast exsolution,deriving from the increased active sites for enhancing the electrochemical reactions.At 900 ℃,a promising peak power density of 966 mW cm-2 is reached.Our work exploits a new territory to fabricate and develop advanced electrodes for SSOCs in a rapid and high-throughput manner.

外文关键词：

electrochemical performanceextreme heat treatmentperovskite electrodesymmetrical solid oxide cells

作者：

Weiwei Fan、Zhu Sun、Manxi Wang、Manxian Li、Yuming Chen

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作者单位：

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education,School of Energy and Environment,Southeast University,Nanjing 210096,China

Department of Nuclear Science and Engineering,Massachusetts Institute of Technology,Cambridge,Massachusetts 02139,USA

School of Materials Science and Engineering,Shanghai Jiao Tong University,800 Dongchuan Road,Shanghai 200240,China

Zhangjiang Institute for Advanced Study(ZIAS),Shanghai Jiao Tong University,Shanghai 201210,China

College of Environmental Science and Engineering and College of Physics and Energy,Fujian Normal University,Fuzhou 350000,China

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基金：

Natural Science Foundation of Shaanxi ProvinceChina Postdoctoral Science FoundationStartup Research Fund of Southeast UniversityChen Xing Plan of Shanghai Jiao Tong University

项目编号：

2020JQ-0652020 M6834594003002330

出版年：

2024

DOI：

10.1002/eem2.12718

能源与环境材料(英文)

ISSN：

年,卷(期)：2024.7(5)