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One-Step Thermal Processing of BaCe0.8Y0.2O3-δ Hydrogen Permeable Multi-Channel Hollow Fiber Membrane
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  • Tianlei Wang,
  • Zheng Fan,
  • Shoufei Wang,
  • Qiankun Zheng,
  • Jinkun Tan,
  • Zhengkun Liu,
  • Guangru Zhang,
  • Wanqin Jin
Tianlei Wang

Corresponding Author:[email protected]

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Zheng Fan
Nanjing Tech University
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Shoufei Wang
Nanjing Tech University
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Qiankun Zheng
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Jinkun Tan
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Zhengkun Liu
Nanjing Tech University
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Guangru Zhang
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Wanqin Jin
Nanjing University of Technology
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Abstract

Yttrium-doped barium cerate (BaCe0.8Y0.2O3-δ, BCY) is the most widely studied proton conducting material and is frequently fabricated as dense membranes for hydrogen separation. However, the difficulty to prepare dense BCY membranes is the extremely high sintering temperature, normally higher than 1500 oC. Herein, the BCY 7-channel hollow fiber membrane was prepared by one-step thermal processing (OSTP). It proved that adding Co2O3 as sintering aid is beneficial to the densification and 1wt% Co2O3 was the optimum addition to form a homogeneous phase structure. The dense sintering temperature was greatly reduced from over 1500 to 1350 oC. The hydrogen permeation flux of the BCY hollow fiber membrane reached up to 0.34 ml min-1cm-2 at 900 oC. The long-term stability test last for 300 h. The properties of OSTP samples were demonstrated to be essentially higher than samples made by conventional ceramic hollow fiber fabrication methods.
23 Aug 2021Submitted to AIChE Journal
25 Aug 2021Submission Checks Completed
25 Aug 2021Assigned to Editor
03 Sep 2021Reviewer(s) Assigned
06 Nov 2021Editorial Decision: Revise Minor
19 Dec 20211st Revision Received
27 Dec 2021Submission Checks Completed
27 Dec 2021Assigned to Editor
30 Dec 2021Reviewer(s) Assigned
09 Jan 2022Editorial Decision: Accept