期刊
NATURE ENERGY
卷 3, 期 12, 页码 1042-1050出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41560-018-0262-5
关键词
-
资金
- US Department of Energy Advanced Research Projects Agency-Energy (ARPA-E) REBELS program [DE-AR0000502]
- US Department of Energy SECA Core Technology Program [DE-FE0031201]
- Catalysis program, Office of Basic Energy Sciences, US Department of Energy [DE-SC0014561]
- Division of Chemistry of the NSF [1462121]
- DOE Office of Science [DE-SC0012704]
Solid oxide fuel cells (SOFCs) are potentially the most efficient technology for direct conversion of hydrocarbons to electricity. While their commercial viability is greatest at operating temperatures of 300-500 degrees C, it is extremely difficult to run SOFCs on methane at these temperatures, where oxygen reduction and C-H activation are notoriously sluggish. Here we report a robust SOFC that enabled direct utilization of nearly dry methane (with similar to 3.5% H2O) at 500 degrees C (achieving a peak power density of 0.37W cm(-2)) with no evidence of coking after similar to 550 h operation. The cell consists of a PrBa0.5Sr0.5Co1.5Fe0.5O5+delta nanofibre-based cathode and a BaZr0.1Ce0.7Y0.1Yb0.1O3-delta-based multifunctional anode coated with Ce0.90Ni0.05Ru0.05O2 (CNR) catalyst for reforming of CH4 to H-2 and CO. The high activity and coking resistance of the CNR is attributed to a synergistic effect of cationic Ni and Ru sites anchored on the CNR surface, as confirmed by in situ/operando experiments and computations.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据