A High-Strength Solid Oxide Fuel Cell Supported by an Ordered Porous Cathode Membrane-Reference-Cited by-同舟云学术

A High-Strength Solid Oxide Fuel Cell Supported by an Ordered Porous Cathode Membrane

Published:2024-02-04 Issue:2 Volume:14 Page:44
ISSN:2077-0375
Container-title:Membranes
language:en
Short-container-title:Membranes

Author:

Chen Ting¹^ORCID,Zhang Huilin¹,Zheng Guozhu¹,Xue Qiang¹,Huang Zuzhi²,Zhou Yucun³^ORCID,Wang Shaorong¹

Affiliation:

1. School of Chemistry and Chemical Engineering, China University of Mining and Technology, 1 Daxue Street, Xuzhou 221116, China

2. Jiangxi Key Laboratory of Surface Engineering, School of Materials and Energy, Jiangxi Science and Technology Normal University, Nanchang 330013, China

3. Beijing Huairou Laboratory, Beijing 101400, China

Abstract

The phase inversion tape casting has been widely used to fabricate open straight porous supports for solid oxide fuel cells (SOFCs), which can offer better gas transmission and minimize the concentration polarization. However, the overall weak strength of the macro-porous structure still limits the applications of these SOFCs. In this work, a novel SOFC supported by an ordered porous cathode membrane with a four-layer configuration containing a finger-like porous 3 mol% yttria- stabilized zirconia (3YSZ)-La0.8Sr0.2Co0.6Fe0.4O3−δ (LSCF) catalyst, porous 8 mol% yttria-stabilized zirconia (8YSZ)-LSCF catalyst, and dense 8YSZ porous 8YSZ-NiO catalyst is successfully prepared by the phase inversion tape casting, dip-coating, co-sintering, and impregnation process. The flexural strength of the open straight porous 3YSZ membrane is as high as 131.95 MPa, which meets the requirement for SOFCs. The cathode-supported single cell shows a peak power density of 540 mW cm−2 at 850 °C using H2 as the fuel. The degradation mechanism of the SOFC is investigated by the combination of microstructure characterization and distribution of relaxation times (DRT) analysis.

Funder

the Fundamental Research Funds for the Central Universities

Publisher

MDPI AG

Link

https://www.mdpi.com/2077-0375/14/2/44/pdf

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