The study of the performance of Ni supported on gadolinium doped ceria SOFC anode on the steam reforming of ethanol

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• 作者：Lí ; dia O.O. da Costa^a ; Adriana M. da Silva^a ; Fá ; bio B. Noronha^a ; Lisiane V. Mattos^b ; ^{lidia.oazem@int.gov.br} ; ^{lisiane@vm.uff.br}
• 关键词：Ethanol ; SOFC ; Steam reforming ; Ni/CeGd anodes
• 刊名：International Journal of Hydrogen Energy
• 出版年：2012
• 期刊代码：42_03603199
• 类别：ch
• 出版时间：April, 2012
• 卷：37
• 期：7
• 页码：5930-5939
• 文件大小：1203 K

摘要

The catalytic performance of Ni/CeGd SOFC anodes prepared by co-precipitation for steam reforming of ethanol at different reaction temperatures was evaluated. The Ni/CeGd SOFC anode calcined at 1073聽K exhibited the highest activity and the lowest by-products formation rates during SR at 773聽K. The TG and SEM analyses of the used catalysts showed that the deactivation observed for SR at 773聽K was associated with the formation of carbon filaments. It was also observed that the increase of reaction temperature from 773 to 1073聽K decreased coke formation, which was no longer detected at 1073聽K. This result was attributed to the reverse of the Boudouard reaction and the promoting effect of the support on carbon gasification.