燃料对甘氨酸-硝酸盐法合成Gd0.8Sr0.2CoO3-δ阴极材料的影响

doi:10.3724/SP.J.1077.2013.12626

无机材料学报 ›› 2013, Vol. 28 ›› Issue (8): 818-824.DOI: 10.3724/SP.J.1077.2013.12626 CSTR: 32189.14.SP.J.1077.2013.12626

燃料对甘氨酸-硝酸盐法合成Gd_0.8Sr_0.2CoO_3-δ阴极材料的影响

王欢, 张华, 靳宏建, 赵文文

(南京工业大学材料科学与工程学院, 南京210009)

收稿日期:2012-10-18 修回日期:2012-11-22 出版日期:2013-08-20 网络出版日期:2013-07-15
作者简介:王欢(1988–), 女, 硕士研究生. E-mail: yxwanghuan@163.com
基金资助:
江苏高校优势学科建设项目

Effect of Fuel Amount on Synthesis of Gd_0.8Sr_0.2CoO_3-δ Cathode Material by Glycine-nitrate Process

WANG Huan, ZHANG Hua, JIN Hong-Jian, ZHAO Wen-Wen

(College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China)

Received:2012-10-18 Revised:2012-11-22 Published:2013-08-20 Online:2013-07-15
About author:WANG Huan. E-mail: yxwanghuan@163.com
Supported by:
Priority Academic Program Development of Jiangsu Higher Education Institutions

摘要/Abstract

摘要： 采用甘氨酸-硝酸盐法(GNP)制备Gd_0.8Sr_0.2CoO_3-δ (GSC)纳米粉体。通过元素化学计量、热力学计算及XRD、SEM、交流阻抗谱等测试手段, 研究了甘氨酸与金属离子摩尔比(G/M=1.5、2.0、2.5、3.0、3.5)以及煅烧温度等制备参数对GSC粉料合成反应及电极性能的影响。实验测得凝胶自燃烧时火焰温度在850~1150℃之间, 其中G/M=2.5时火焰温度最高, 燃烧最完全, 与理想化学计量(φ=1)的计算结果相一致, 由此制得的粉料呈蓬松泡沫状, 粒径细小。交流阻抗谱测试结果表明: 1100℃煅烧制得的GSC-2.5阴极与Sm_0.2Ce_0.8O_1.9 (SDC)电解质间的界面电阻(ASR)最小, 仅0.119 Ω·cm²。Gd_0.8Sr_0.2CoO_3-δ电极电导率在500~800℃测试范围内均大于100 S/cm, 满足IT-SOFC阴极材料的要求。

关键词: 阴极, 甘氨酸-硝酸盐法, 化学计量系数, 热力学, 电化学性能

Abstract: Gd_0.8Sr_0.2CoO_3-δ (GSC) nano-powders as cathode materials were synthesized by glycine-nitrate process (GNP) with different glycine-to-metal ratios (G/M=1.5, 2.0, 2.5, 3.0, 3.5). The performance of GSC cathode calcined at different temperatures was characterized by XRD, SEM and AC impedance spectra. The actual flame temperatures of combustion measured ranging from 850℃ to 1150℃. The flame temperature for the sample of G/M 2.5 is the highest because of the most sufficient combustion which is in agreement with the calculation result of the ideal stoichiometric ratio (φ=1). Meanwhile, the fluffy foamy powder is obtained with fine grain size. Analysis of the AC impedance spectra shows that the area specific resistance (ASR) between GSC-2.5 cathode prepared at 1100℃ and Sm_0.2Ce_0.8O_1.9 (SDC) electrolyte is mere 0.119 Ω·cm². The electrical conductivity value of Gd_0.8Sr_0.2CoO_3-δ cathode is higher than 100 S/cm in the temperature range from 500℃ to 800℃, which implies that GSC could be a promising cathode material for IT-SOFC.

Key words: cathode, glycine-nitrate process (GNP), stoichiometric coefficient, thermodynamics, electrochemical performance

中图分类号:

TM911

王欢, 张华, 靳宏建, 赵文文. 燃料对甘氨酸-硝酸盐法合成Gd_0.8Sr_0.2CoO_3-δ阴极材料的影响[J]. 无机材料学报, 2013, 28(8): 818-824.

WANG Huan, ZHANG Hua, JIN Hong-Jian, ZHAO Wen-Wen. Effect of Fuel Amount on Synthesis of Gd_0.8Sr_0.2CoO_3-δ Cathode Material by Glycine-nitrate Process[J]. Journal of Inorganic Materials, 2013, 28(8): 818-824.

参考文献

[1] Zhang G R, Dong X L, Liu Z K, et al. Cobalt-site cerium doped SmxSr1?xCoO3?δ oxides as potential cathode materials for solid-oxide fuel cells. Journal of Power Sources, 2010, 195(11): 3386–3393.

[2] Jiang S P. A comparison of O2 reduction reactions on porous (La, Sr)MnO3 and (La, Sr)(Co, Fe)O3 electrodes. Solid State Ionics, 2002, 146: 1–22.

[3] Liu B W, Zhang Y, Zhang L M. Oxygen reduction mechanism at Ba0.5Sr0.5Co0.8Fe0.2O3?δ cathode for solid oxide fuel cell. International Journal of Hydrogen Energy, 2009, 34(2): 1008–1014.

[4] Lee K T, Manthiram A. Comparison of Ln0.6Sr0.4CoO3-δ (Ln= La, Pr, Nd, Sm and Gd) cathode materials for intermediate temperature solid oxide fuel cells. Journal of the Electrochemcal Society, 2006, 153: A794–A798.

[5] Huang S G, Peng C Q, Zong Z. A high-performance Gd0.8Sr0.2CoO3-Ce0.9Gd0.1O1.95 composite cathode for intermediate temperature solid oxide fuel cell. Journal of Power Sources, 2008, 176(1): 102–106.

[6] Chen J, Liang F L, Chi B, et al. Palladium and ceria infiltrated La0.8Sr0.2Co0.5Fe0.5O3?δ cathodes of solid oxide fuel cells. Journal of Power Sources, 2009, 194(1): 275–280.

[7] Chen J, Liang F L, Liu L N, et al. Nano-structured (La, Sr)(Co,Fe)O3+YSZ composite cathodes for intermediate temperature solid oxide fuel cells. Journal of Power Sources, 2008, 183(2): 586–589.

[8] Song S A, Jang S C, Han J, et al. Enhancement of cell performance using a gadolinium strontium cobaltite coated cathode in molten carbonate fuel cells. Journal of Power Sources, 2011, 196(23): 9900–9905.

[9] Wang Ya-Nan, Zhou He-Ping. Preparation and characterization of Gd1-xSrxCoO3-δ and Gd0.8Sr0.2Co1-yFeyO3-δ. Chinese Journal of Inorganic Chemistry, 2008, 24(10): 1558–1563.

[10] Jin Hong-Jian, Wang Huan, Zhang Hua, et al. Synthesis and characterization of GdBaCo2O5+δ cathode material by glycine-nitrate process. Journal of Inorganic Materials, 2012, 27(7): 751–756.

[11] Jadhav L D, Chourashiya M G, Subhedar K M, et al. Synthesis of nanocrystalline Gd doped ceria by combustion technique. Journal of Alloys and Compounds, 2009, 470(1/2): 383–386.

[12] Purohit R D, Sharma B P, Pillai K T, et al. Ultrafine ceria powders via glycine–nitrate combustion. Materials Research Bulletin, 2001, 36: 2711–2721.

[13] Schafer J, Sigmund W, Roy S, Aldinger F. Low temperature synthesis of ultrafine Pb(Zr, Ti)O3 powder by sol gel combustion. Journal of Materials Research, 1997, 12: 2518–2521.

[14] Jain S R, Adiga K C, Verneker V R P. A new approach to thermochemical calculations of condensed fuel-oxidizer mixture. Combust and Flame, 1981, 40(1): 71–79.

[15] Shao Z P, Zhou W, Zhu Z H. Advanced synthesis of materials for intermediate-temperature solid oxide fuel cells. Progress in Materials Science, 2012, 57(4): 804–874.

[16] Purohit R D, Sharma B P, Pillai K T, et al. Ultrafine ceria powders via glycine–nitrate combustion. Materials Research Bulletin, 2001, 36: 2711–2721.

[17] John A D. Lange's Handbook of Chemistry. fifteenth ed. London: McGraw-Hill, 1999: 554–569.

[18] Huang Shou-Guo, Peng Chun-Qiu, Xia Chang-Rong. Fabrication of Gd0.8Sr0.2CoO3-Sm0.2Ce0.8O1.9 cathodes for intermediate temperature solid oxide fuel cell. Journal of Functional Materials, 2006, 1(37): 92–94.

[19] Cullity B D. Elements of X-RAY Diffraction. Massachusetts: Ddison-Wesley Publishing Company, Inc., 1956: 110.

燃料对甘氨酸-硝酸盐法合成Gd_0.8Sr_0.2CoO_3-δ阴极材料的影响

Effect of Fuel Amount on Synthesis of Gd_0.8Sr_0.2CoO_3-δ Cathode Material by Glycine-nitrate Process

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燃料对甘氨酸-硝酸盐法合成Gd0.8Sr0.2CoO3-δ阴极材料的影响

Effect of Fuel Amount on Synthesis of Gd0.8Sr0.2CoO3-δ Cathode Material by Glycine-nitrate Process

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燃料对甘氨酸-硝酸盐法合成Gd_0.8Sr_0.2CoO_3-δ阴极材料的影响

Effect of Fuel Amount on Synthesis of Gd_0.8Sr_0.2CoO_3-δ Cathode Material by Glycine-nitrate Process