Researchers have made significant strides in developing high-performance anode-supported tubular solid oxide fuel cells (SOFCs). These cells feature a thin, dense electrolyte made of Ba(Zr0.1Ce0.7Y0.2)O3-δ (BZCY). The fabrication process involved several key steps. First, fine BZCY powder was prepared using a co-precipitation method. Next, Ni-BZCY anode tubes were created via an extrusion process, boasting a 34 % porosity and an average pore size of 0.381 μm. To optimize cell performance, a Ni-BZCY/BZCY nanocomposite slurry was applied as an anode functional layer (AFL) using a dip-coating method. The BZCY electrolyte itself was then coated with a vacuum slurry coating, and finally, an LSCF-BZCY cathode was added, prepared with dip-coating methods. Impedance analysis, conducted under open-circuit conditions at 700 °C, revealed impressive electrical characteristics. The BZCY electrolyte showed an ohmic resistance of approximately 0.79 Ωcm-2 and a very low polarization resistance of about 0.036 Ωcm-2. When tested in a humidified hydrogen atmosphere (3 % H2O) at temperatures ranging from 600 °C to 700 °C, these tubular BZCY cells delivered outstanding power output. Specifically, they achieved a remarkable maximum power density of roughly 0.51 Wcm-2 at 700 °C. This research highlights the potential of these advanced tubular solid oxide fuel cells based on the BZCY as a proton conductor for efficient energy conversion.

Abstract
1. 서 론
2. 실험 방법
    2.1. BZCY 분말 합성
    2.2. 나노복합체 분말 합성
    2.3. 원통형 전지 제조
    2.4. 특성 분석
3. 결과 및 고찰
4. 결 론
Acknowledgement
References
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• 이진구(한국생산기술연구원 동남기술실용화본부 에너지시스템그룹 첨단하이브리드생산기술센터) | JIN GOO LEE (Advanced Hybrid Manufacturing Technology Center, Energy System Group, Dongnam Technology Application Division, Korea Institute of Industrial Technology, Yangsan, 50623, Republic of Korea) Corresponding author