提高固体氧化物燃料电池镍基阳极耐硫性的研究

摘要

Fuel flexibility is one of the most important advantages of solid oxide fuel cells,so liquid hydrocarbon fuels can be used as fuels for practical use of SOFCs.There are some impurities in the liquid hydrocarbon fuels,like the sulfides.In this research,LST nanofibers protective layer has been designed to protect the Ni-based anode.In addition,Mg/Fe protective layer has been infiltrated into LST-nanofibers protective layer to form the Mg/Fe-LST composite protective layer to protect the Ni-based anode.It is believed that the combination of the LST-nanofibers and the Mg/Fe protective layer can protect the nickel-based anode from sulfur.%固体氧化物燃料电池最显著的优点是燃料的适用性广,因此液体碳氢燃料可实际应用于固体氧化物燃料电池.由于液体碳氢燃料一般是由石油中生产出来,因此在液体碳氢燃料中含有一定量的硫化物.本文设计并研究在镍基阳极表面添加纳米纤维形貌的La02Sr0.8TiO3(LST)保护层,并在LST保护层中浸渍Mg/Fe保护层形成LST-Mg/Fe复合保护层来提高镍基阳极的耐硫性能,证明了纳米纤维形貌LST与Mg/Fe保护层形成的LST-Mg/Fe复合保护层是可以很好提高镍基阳极耐硫性能.