کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1287238 | 973218 | 2006 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Feasibility of Ni-based cermet anode for direct HC SOFCs: Fueling ethane at a low S/C condition to Ni–ScSZ anode-supported cell Feasibility of Ni-based cermet anode for direct HC SOFCs: Fueling ethane at a low S/C condition to Ni–ScSZ anode-supported cell](/preview/png/1287238.png)
The feasibility of a Ni-based cermet anode for direct hydrocarbon (HC) SOFCs was investigated with ethane fuel as a step towards utilizing higher HCs such as propane and butane. The possibility of stable operation of SOFCs with ethane fuel at a low steam/carbon (S/C) ratio of 1.2 mol% H2O–98.8 mol% C2H6 was investigated with anode-supported SOFCs utilizing a scandia stabilized zirconia (ScSZ) electrolyte and a Ni–ScSZ anode. Severe carbon deposition was observed around the anode especially at the fuel injection port during the cell tests at T = 973 K. The amount of deposited carbon became smaller with decreasing operation temperature, and a stable cell operation was achieved at T ≈ 823 K without severe carbon deposition over a week. However, at a low fuel utilization rate (Uf) around 20%, nickel was heavily disintegrated accompanied by severe carbon deposition even at T ≈ 823 K. With increasing Uf, the disintegration became less, and a stable cell operations were achieved only with a small amount of deposited carbon for over a week at high Uf > 46%.
Journal: Journal of Power Sources - Volume 159, Issue 2, 22 September 2006, Pages 885–890