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Ru-Ce_0.7Zr_0.3O_2-δ作为固体氧化物燃料电池中二甲基乙烯的内部改革的阳极催化剂

Miguel Morales^1,2, Mohammad Rezayat^1,2, Sandra García-González^1,2

¹Structural Integrity and Materials Reliability Centre (CIEFMA), Department of Materials Science and Engineering, EEBE-Campus Diagonal Besòs, Universitat Politècnica de Catalunya-BarcelonaTech, C/Eduard Maristany, 16, 08019 Barcelona, Spain.

Nanomaterials (Basel, Switzerland)

|April 12, 2024

概括

作为阳极催化剂层的鲁--配合的 (Ru-CZO) 显著改善了直接二甲基乙烯 (DME) 固氧化物燃料电池 (SOFC) 的性能. 这种新型的催化剂层提高了20%以上的效率,并抵抗了碳沉积.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
催化剂是一种催化剂.

背景情况:

直接二甲基乙烯 (DME) 固体氧化物燃料电池 (SOFC) 面临着与传统Ni-zirconia阳极的挑战,包括低活性和碳沉积.
开发高效的阳极催化剂对于推进DME SOFC技术至关重要.

研究的目的:

为了研究--配合的 (Ru-CZO) 阳极催化剂层 (ACL) 对直接DME SOFCs的有效性.
通过改善催化活性和减轻碳沉积,解决传统阳极的局限性.

主要方法:

通过sol-gel和浸方法合成的Ru-CZO粉末.
使用BET,XRD,FESEM-EDS和TEM进行催化剂表征.
按阳极支持的SOFCs与Ru-CZO ACL在750°C的DME/空气混合物下进行制造和电化学性能测试.

主要成果:

在CZO固体溶液中观察到Ru的高分散.
在750°C完成DME转换,获得高产量的H2和CO,达到750°C.
与参考细胞相比,Ru-CZO ACL 提高了 20% 以上的细胞性能.
对碳沉积表现出了显著的抵抗力.

结论:

Ru-CZO作为一种高效的催化剂和阳极催化剂层,用于直接的DME SOFCs.
开发的Ru-CZO ACL为克服DME SOFC的性能限制提供了一个有希望的解决方案.
催化剂对碳沉积的抵抗力凸显了其长期运行稳定性的潜力.

关键词:

阳极催化剂层 (ACL) 是一种碳沉积过程中的碳沉积.双甲基以太 (DME) 是一种被杂的CeriaCeria是什么意思部分氧化的部分氧化.固体氧化物燃料电池 (SOFC) 是一种燃料电池.

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