Metal-supported solid oxide fuel cell system with infiltrated reforming catalyst layer for direct ethanol feed operation
Metal-supported solid oxide fuel cell system with infiltrated reforming catalyst layer for direct ethanol feed operation
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DOI：
10.1016/j.jpowsour.2022.231625
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发表时间：
2022-06-10
影响因子：
9.2
通讯作者：
Ha, Su
中科院分区：
文献类型：
--
作者：
Dewa, Martinus;Elharati, Mohamed A.;Ha, Su
在这项工作中，我们介绍了铑-铈-锆（Rh/CZ）的内部重整催化剂层的高性能金属支撑的固体氧化物燃料电池（MS-SOFC）。通过将Rh、CeO 2和ZrO 2前体渗透到不锈钢（SS 430）载体中来施加催化剂。通过在600？下将乙醇溶液（45体积%）直接进料到阳极中来测试电池。我们的实验结果表明，与渗透的5wt%Rh/CZ的纽扣电池表现出改进的性能，通过提高乙醇的内部重整活性朝向合成气的生产没有催化剂层的纽扣电池。最大电流密度从0.3 A cm-2提高到0.4 A cm-2，同时长期稳定性也大大提高。事后电池分析表明，渗透的催化剂层可以防止严重的焦炭沉积从电池的阳极功能层。提出的集成重整催化剂和MS-SOFC系统是一个有前途的途径，使生物乙醇燃料电池技术的未来电动汽车。
In this work, we introduce a Rhodium-Ceria-Zirconia (Rh/CZ) internal reforming catalyst layer to a highperformance metal-supported solid oxide fuel cell (MS-SOFC). The catalyst is applied by infiltrating Rh, CeO2, and ZrO2 precursors into the stainless steel (SS 430) support. The cell is tested by directly feeding an ethanol solution (45 vol%) into the anode at 600 ?. Our experimental results show that the button cell with the infiltrated 5 wt% Rh/CZ demonstrates an improved performance over the button cell without the catalyst layer by enhancing the internal reforming activity of ethanol toward the production of synthesis gas. The maximum current density improved from 0.3 A cm-2 to 0.4 A cm(-2) while the long-term stability was also greatly improved. Post mortem cell analysis reveals that the infiltrated catalyst layer can prevent severe coke deposition from the cell's anode functional layer. The proposed integrated reforming catalyst and MS-SOFC system is a promising pathway to enable bioethanol fed-SOFC technology for future electric vehicles.