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Zhuang et al. Energy Mater. 2025, 5, 500015 Energy Materials
DOI: 10.20517/energymater.2024.90

Article Open Access

High-performance novel anode-supported

microtubular protonic ceramic fuel cells via highly
efficient and simplified extrusion technology

2
1
1
1
1,*
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1
Zichen Zhuang , Zuzhi Huang , Xiaoyu Zhang , Kui Liu , Guozhu Zheng , Ting Chen , Ruili Sun , Lang
1
Xu , Shaorong Wang 1,*
1
School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China.
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Jiangxi Key Laboratory of Surface Engineering, School of Materials and Energy, Jiangxi Science and Technology Normal
University, Nanchang 330013, Jiangxi, China.
*Correspondence to: Dr. Ting Chen, School of Chemical Engineering & Technology, China University of Mining and Technology, 1
Daxue Road, Xuzhou 221116, Jiangsu, China. E-mail: chenting@cumt.edu.cn; Prof. Shaorong Wang, School of Chemical
Engineering & Technology, China University of Mining and Technology, 1 Daxue Road, Xuzhou 221116, Jiangsu, China. E-mail:
srwang@cumt.edu.cn
How to cite this article: Zhuang, Z.; Huang, Z.; Zhang, X.; Liu, K.; Zheng, G.; Chen, T.; Sun, R.; Xu, L.; Wang, S. High-performance
novel anode-supported microtubular protonic ceramic fuel cells via highly efficient and simplified extrusion technology. Energy
Mater. 2025, 5, 500015. https://dx.doi.org/10.20517/energymater.2024.90
Received: 26 Jul 2024 First Decision: 2 Sep 2024 Revised: 23 Sep 2024 Accepted: 10 Oct 2024 Published: 9 Jan 2025
Academic Editors: Sining Yun, Jose A. Alonso Copy Editor: Fangling Lan Production Editor: Fangling Lan

Abstract
Protonic ceramic fuel cells (PCFCs) are regarded as efficient energy conversion devices for addressing the
challenges of carbon neutrality, which can directly convert the chemical fuel energy into electricity at reduced
operating temperatures below 700 °C. However, the insufficient strength and immature preparation processes of
PCFCs limit their practical application. In this work, the novel anode-supported microtubular PCFCs with a tube
diameter of less than 5 mm were successfully prepared by extrusion technology combined with a dip-coating
method. The newly developed BaZr Ce Y Gd O (BZCYG4411) proton-conducting electrolyte was synthesized
0.4 0.4 0.1 0.1 3-δ
using an extremely simple and efficient one-step solid-state reaction method, showing comparable electrical
conductivity with BaZr Ce Y Yb O (BZCYYb4411) and BaZr Ce Y Yb O (BZCYYb1711) electrolytes, as
0.4 0.4 0.1 0.1 3-δ 0.1 0.7 0.1 0.1 3-δ
well as excellent chemical stability. The single cell with Ba Sc Nb Co Fe O (BSNCF) cathode exhibited a high
2 0.1 0.1 1.5 0.3 6-δ
peak power density of 906.86 mW cm at 700 °C. Additionally, this microtubular PCFC demonstrated excellent
-2
stability after about 103 h durability test at a constant current of 0.5 A cm at 650 °C. This study provides a highly
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efficient and simplified technology for fabricating high-performance and durable anode-supported microtubular
PCFCs.
Keywords: BZCYG4411 proton-conducting oxide, new anode support, microtubular PCFC, large-length, extrusion

© The Author(s) 2025. Open Access This article is licensed under a Creative Commons Attribution 4.0
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