Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7736810 | Journal of Power Sources | 2014 | 4 Pages |
Abstract
The electrochemical performance and long-term durability of a solid oxide fuel cell have been evaluated with a simulated coal syngas containing 2Â ppm H2S as fuel. The resulting impedance spectra indicate that no observable power loss is caused by the addition of 2Â ppm H2S, and the cell shows stability of nearly 500Â h at 0.625Â AÂ cmâ2. The composition of mixed gas is analyzed both at a current load of 0.625Â AÂ cmâ2 and open circuit state. Hydrogen and carbon monoxide are directly consumed as fuels at the anode side, whereas methane stays unchanged during the operation. It seems the internal carbohydrate reforming and impurity poisoning interacts and weakens the poisoning effects. The oxidation of H2 and the water gas shift reaction take advantages over methane reforming at the cell operational conditions.
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Authors
Ting Shuai Li, Min Xu, Chongxin Gao, Baoqing Wang, Xiyun Liu, Baihai Li, Wei Guo Wang,