Cold sintering of perovskite‐based mixed conducting membrane for oxygen separation

Abstract

Cold sintering has attracted significant attention as its remarkably rapid densification process at low sintering temperatures leads to considerable energy savings. However, the sintering behaviors of cold‐sintered perovskite ceramics remain poorly understood and lack precise control over material microstructure. Here, we fabricated dense SrCo0.8Fe0.2O3−δ (SCF) ceramic oxygen permeation membranes by cold sintering. Adding an appropriate ratio of sub‐micron SCF particles can better bridge the sintering interspaces between micron particles, generate amorphous phase through “dissolution‐precipitation,” and aid in the initial densification. The average relative density of SCF membranes undergoes a significant increase to 95.9% after cold sintering and post‐annealing at 900°C, which is much lower than the temperature required for conventional high‐temperature solid‐state sintering (>1200°C). The oxygen permeation flux of the prepared SCF perovskite membrane reaches 2.8 mL min−1 cm−2, which proves that this method has the potential to be an excellent sintering technique for dense perovskite ceramic membranes.

Publication DOI: https://doi.org/10.1002/aic.18378
Divisions: College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry
Funding Information: This work was funded by the National Key Research and Develop-ment Program of China (2022YFB3808400), the Natural ScienceFoundation of Jiangsu Province (BK20220002, BE2022024), LeadingTalents Program of Zhejiang Province (2024C03223), and TopnotchAcademic
Additional Information: Copyright © 2024 American Institute of Chemical Engineers. This is the peer reviewed version of the following article: 'Zhou, W, Fan, Z, Jiang, H, Wu, Z, Liu, Z, Zhang, G & Jin, W 2024, 'Cold sintering of perovskite‐based mixed conducting membrane for oxygen separation', AIChE Journal, vol. 70, no. 4, e18378'. , which has been published in final form at: https://doi.org/10.1002/aic.18378.  This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archived Versions.
Uncontrolled Keywords: ceramic membrane,cold sintering,densification,oxygen permeation,perovskite,Chemical Engineering(all),Biotechnology,Environmental Engineering
Publication ISSN: 1547-5905
Data Access Statement: The numerical data from the Figure2, Figure4C–E, and Figure6B,Care available in the Supplementary Materials. The data that support the findings of this study are available from the corresponding authorupon reasonable request.
Last Modified: 20 May 2024 07:45
Date Deposited: 16 Apr 2024 09:29
Full Text Link:
Related URLs: https://aiche.o ... .1002/aic.18378 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2024-04
Published Online Date: 2024-02-06
Accepted Date: 2024-01-15
Authors: Zhou, Wanglin
Fan, Zheng
Jiang, Hanjun
Wu, Zhentao (ORCID Profile 0000-0002-4934-8046)
Liu, Zhengkun
Zhang, Guangru
Jin, Wanqin

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Version: Accepted Version

Access Restriction: Restricted to Repository staff only until 6 February 2025.

License: Creative Commons Attribution Non-commercial No Derivatives


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