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

Wanglin Zhou, Zheng Fan, Hanjun Jiang, Zhentao Wu, Zhengkun Liu, Guangru Zhang, Wanqin Jin

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Article numbere18378
Number of pages12
JournalAIChE Journal
Issue number4
Early online date6 Feb 2024
Publication statusPublished - Apr 2024

Bibliographical note

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:  This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archived Versions.

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.


  • ceramic membrane
  • cold sintering
  • densification
  • oxygen permeation
  • perovskite


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