硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (7): 2510-2519.DOI: 10.16552/j.cnki.issn1001-1625.2026.0079
朱丽华(
), 田倩文, 程思懿, 徐锋(
), 李佳哲, 陈希叶
收稿日期:2026-01-21
修订日期:2026-03-01
出版日期:2026-07-15
发布日期:2026-08-13
通信作者:
徐 锋,博士,教授。E-mail:xufeng79_79@163.com作者简介:朱丽华(1979—),女,博士,教授。主要从事瓦斯燃料电池等方面的研究。E-mail:zhulihua79@163.com
基金资助:
ZHU Lihua(
), TIAN Qianwen, CHENG Siyi, XU Feng(
), LI Jiazhe, CHEN Xiye
Received:2026-01-21
Revised:2026-03-01
Published:2026-07-15
Online:2026-08-13
摘要:
固体氧化物燃料电池可实现低浓度甲烷的高效转化,具有安全、环保等多重价值。本文在利用溶胶凝胶法合成阳极材料La0.3Sr0.7Fe0.7Ti0.3O3(LSFT)、乙二胺四乙酸钙钠(EDTA-CA)联合络合法合成电解质材料Sm0.2Ce0.8O1.9(SDC)和阴极材料La0.6Sr0.4Co0.2Fe0.8O3(LSCF)的基础上,制备了电解质支撑型固体氧化物燃料电池LSFT/SDC/LSCF,并以低浓度甲烷为燃料,在650~800 ℃测试了电池的电化学性能。结果表明:合成的LSFT和LSCF为较纯净的立方钙钛矿结构,且孔隙发育,SDC为结构致密的立方萤石结构;制备的电池LSFT/SDC/LSCF可实现电-氢联产,燃料气中甲烷浓度越高,电池的电化学性能越好,而且电池性能受温度的影响较为显著。以体积分数为30%的低浓度甲烷为燃料气,800 ℃时电池极化阻抗为0.15 Ω·cm2,甲烷转化率为30.4%,氢气选择性为45.8%。研究结果可为基于固体氧化物燃料电池的低浓度甲烷,尤其是低浓度煤矿瓦斯利用的深入研究提供参考。
中图分类号:
朱丽华, 田倩文, 程思懿, 徐锋, 李佳哲, 陈希叶. 以低浓度甲烷为燃料的固体氧化物燃料电池的制备及性能[J]. 硅酸盐通报, 2026, 45(7): 2510-2519.
ZHU Lihua, TIAN Qianwen, CHENG Siyi, XU Feng, LI Jiazhe, CHEN Xiye. Preparation and Performance of Solid Oxide Fuel Cells Using Low-Concentration Methane as Fuel[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2026, 45(7): 2510-2519.
| Methane concentration/% | Polarization impedance at different temperatures/(Ω·cm2) | |||
|---|---|---|---|---|
| 650 ℃ | 700 ℃ | 750 ℃ | 800 ℃ | |
| 22 | 3.12 | 1.87 | 0.79 | 0.56 |
| 26 | 2.25 | 1.12 | 0.57 | 0.16 |
| 30 | 1.50 | 0.67 | 0.29 | 0.15 |
表1 电池的极化阻抗
Table 1 Polarization impedance of cell
| Methane concentration/% | Polarization impedance at different temperatures/(Ω·cm2) | |||
|---|---|---|---|---|
| 650 ℃ | 700 ℃ | 750 ℃ | 800 ℃ | |
| 22 | 3.12 | 1.87 | 0.79 | 0.56 |
| 26 | 2.25 | 1.12 | 0.57 | 0.16 |
| 30 | 1.50 | 0.67 | 0.29 | 0.15 |
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