以MnFe_2O_4为阻挡层的Ni-YSZ阳极支撑SOFC的效能
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摘要
为提高镍-氧化钇稳定氧化锆(Ni-YSZ)阳极支撑的固体氧化物燃料电池(SOFC)以含碳气为燃料时的抗积碳性能,采用丝网印刷法在Ni-YSZ阳极表面印制阻挡层,阻挡层的材料为高温煅烧制备的铁酸锰(MnFe_2O_4)粉体。在750℃下以模拟污泥微波热解生物质气为燃料,测试含阻挡层的电池的电化学效能和抗积碳性能,并利用扫描电镜对测试前、后的阳极进行表征。研究结果表明:MnFe_2O_4阻挡层与Ni-YSZ阳极的结合性较好;在Ni-YSZ阳极上添加MnFe_2O_4阻挡层后,电池的放电性能有所降低,但是电池在以模拟生物质气为燃料时的抗积碳性能大幅提高,且在浆料中添加16%(质量分数)的石墨制备的阻挡层效果最佳。本研究对Ni-YSZ阳极以生物质气为燃料时的抗积碳能力的改进与发展具有积极意义。
In order to improve carbon deposition resistance of nickel/yttria stabilized zirconia(Ni-YSZ) anode-supported solid oxide fuel cell(SOFC) in carbon-containing fuels, barrier layer was prepared on the Ni-YSZ anode by screen printing in this research. The barrier layer material was spinel manganese ferrite(MnFe_2O_4), which was produced by high-temperature calcination. The cell with barrier layer and the blank cell were tested in simulated biosygas at 750 ℃ to compare efficiency and carbon deposition resistance. The anodes were characterized by scanning electron microscope(SEM) coupled with an INCA Energy-dispersive X-ray spectroscopy(EDS) before and after performances. Experimental results showed that there was a good matching between Ni-YSZ anode and MnFe_2O_4 barrier layer. A little decreasing of the cell performance was observed under operation. It was confirmed that the modified anode had an increase in carbon deposition resistance in the simulated biosyngas. The best performance was obtained when the MnFe_2O_4 slurry was added with 16 wt% graphite. This investigation is of great significance to improve and develop the ability of the Ni-YSZ anode carbon deposition resistance with biosyngas feeding.
In order to improve carbon deposition resistance of nickel/yttria stabilized zirconia(Ni-YSZ) anode-supported solid oxide fuel cell(SOFC) in carbon-containing fuels, barrier layer was prepared on the Ni-YSZ anode by screen printing in this research. The barrier layer material was spinel manganese ferrite(MnFe_2O_4), which was produced by high-temperature calcination. The cell with barrier layer and the blank cell were tested in simulated biosygas at 750 ℃ to compare efficiency and carbon deposition resistance. The anodes were characterized by scanning electron microscope(SEM) coupled with an INCA Energy-dispersive X-ray spectroscopy(EDS) before and after performances. Experimental results showed that there was a good matching between Ni-YSZ anode and MnFe_2O_4 barrier layer. A little decreasing of the cell performance was observed under operation. It was confirmed that the modified anode had an increase in carbon deposition resistance in the simulated biosyngas. The best performance was obtained when the MnFe_2O_4 slurry was added with 16 wt% graphite. This investigation is of great significance to improve and develop the ability of the Ni-YSZ anode carbon deposition resistance with biosyngas feeding.
引文
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2 Wang W,Su C,Wu Y Z,et al.Chemical Reviews,2013,113(10),8104.
3 Papurello D,Borchiellini R,Bareschino P,et al.Applied Energy,2014,125,254.
4 Borello D,Di Carlo A,Boigues-Munoz C,et al.Energy Procedia,2014,61,1099.
5 Sharma M,Rakesh N,Dasappa S.Renewable and Sustainable Energy Reviews,2016,60,450.
6 Miao H,Wang W G,Li T S,et al.Journal of Power Sources,2010,195(8),2230.
7 Arpornwichanop A,Chalermpanchai N,Patcharavorachot Y,et al.International Journal of Hydrogen Energy,2009,34(18),7780.
8 Shin T H,Ida S,Ishihara T.Journal of the American Chemical Society,2011,133(48),19399.
9 Chen K,Zhang L,Gholizadeh M,et al.Chemical Engineering Science,2016,154,108.
10 Zhou X,Oh T,Vohs J M,et al.Journal of the Electrochemical Society,2015,162(6),F567.
11 Zhu B,Bai X Y,Chen G X,et al.International Journal of Energy Research,2002,26(1),57.
12 Rosensteel W A,Babiniec S M,Storjohann D D,et al.Journal of Power Sources,2012,205(205),108.
13 Faro M L,Reis R M,Saglietti G G A,et al.Journal of Applied Electrochemistry,2015,45(7),1.
14 Lo Faro M,Reis R M,Saglietti G G A,et al.ChemElectroChem,2015,1(8),1395.
15 Zhu H,Wang W,Ran R,et al.International Journal of Hydrogen Energy,2012,37(12),9801.
16 李箭,华斌,李檬,等.中国专利,CN104103838A,2014.
17 Jin C,Yang C,Zheng H,et al.Journal of Power Sources,2012,201(1),66.
18 Jin C,Yang C,Zhao F,et al.Electrochemistry Communications,2010,12(10),1450.
19 Enger B C,L?deng R,Walmsley J,et al.Applied Catalysis A General,2010,383(1-2),119.
20 Yang Z,Xia G G,Li X H,et al.International Journal of Hydrogen Energy,2007,32(16),3648.
21 Qi W.Synthesis and assessment of CuFe2O4 as cathodes of inter-mediated temperature solid oxide fuel cells.Master’s Thesis,Harbin Institute of Technology,China,2016 (in Chinese).王琦.中温固体氧化物燃料电池CuFe2O4阴极的制备及性能研究.硕士学位论文,哈尔滨工业大学,2016.
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25 Wu Xiaoyan,Zhang Jun,Zuo Wei,et al.Materials Review B:Research Papers,2014,28(12),14 (in Chinese).吴晓燕,张军,左微,等.材料导报:研究篇,2014,28(12),14.
26 Hanghang C,Jing Y,Long Z,et al.Hot Working Technology,2016(22),11 (in Chinese).柴杭杭,于静,支龙,等.热加工工艺,2016(22),11.
27 Zhu X,Lü Z,Wei B,et al.Journal of Power Sources,2010,195(7),1793.
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