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[1]陈亚男,喻俊,黄志良*,等.Sr和Nd掺杂对La9.33(SiO4)6O2电解质性能的影响[J].武汉工程大学学报,2011,(09):39-45.
　CHEN Yanan,YU Jun,HUANG Zhiliang,et al.Influence of Sr and Nd doping on performance of apatite La9.33(SiO4)6O2 electrolyte[J].Journal of Wuhan Institute of Technology,2011,(09):39-45.
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Sr和Nd掺杂对La9.33(SiO4)6O2电解质性能的影响(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2011年09期
页码:
39-45
栏目:
化学与化学工程
出版日期:
2011-09-30

文章信息/Info

Title:
Influence of Sr and Nd doping on performance of apatite
 La9.33(SiO4)6O2 electrolyte
文章编号:
16742869(2011)09003907
作者:
陈亚男; 喻俊; 黄志良*; 胡威峰; 鲁冕; 田兴
武汉工程大学材料与科学与工程学院,湖北 武汉 430074
Author(s):
CHEN Yanan; YU Jun;  HUANG Zhiliang; HU Weifeng; LU Mian; TIAN Xing
School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, China
关键词:
燃烧合成; 硅酸镧; 固体电解质; 掺杂; 离子电导率
Keywords:
combustion synthesis;  lanthanum silicate;  solid electrolyte;  doping;  ionic conductivity
分类号:
Q611.4；Q653
DOI:
-
文献标志码:
AAdoi:10.3969/j.issn.16742869.2011.09.010
摘要:
采用尿素硝酸盐燃烧法对磷灰石型LSO电解质进行了三价稀土元素Nd和二价碱土元素Sr的La位掺杂，对合成样品进行XRD、SEM分析表征，并测试和分析了样品的电导率.结果表明：Sr、Nd掺杂对LSO的晶体结构、物相和形貌产生的影响很小，而适量的掺杂可有效提高LSO的氧离子传输性能.当掺杂x=0.3时，La9.33Mx(SiO4)6O2+δ（M=Sr、Nd）具有最高离子电导率，La9.33M0.3(SiO4)6O2+δ在500 ℃时的电导率分别为7.248×10-3S·cm-1、1.782×10-2 S·cm-1.Nd掺杂不仅可以提高电导率，还可以降低传导活化能，相比于Sr掺杂更有利于LSO在中低温SOFCs中的应用.实验认为，Sr、Nd掺杂的LSO属于间隙氧传导机制，掺杂可以提高间隙氧的数量，间隙氧相比阳离子空位对LSO电导率的影响更大.
Abstract:
The ureanitrates combustion was introduced to prepare the LSO conductor doped three valence rare earth elements Nd and bivalent alkaline elements Sr at La bits. The synthetic samples were characterized by XRD, SEM etc, and while the conductivity of the samples was tested and analyzed. The results proclaimed that there were little effects of Sr and Nd doping on the crystal structure, phase and morphology of LSO. However, the transport properties of oxygen ion could be improved efficiently by proper amounts of Sr and Nd dopants. When the doping concentration x was 0.3, La9.33Mx(SiO4)6O2+δ（M=Sr、Nd） showed the highest conductivity of 7.248×10-3 S·cm-1 and 1.782×10-2 S·cm-1 at 500 ℃. It showed that Nd doping not only enhanced the ionic conductivity, but also reduced the conduction activation energy, which was more favorable for application of LSO in intermediate temperature SOFCs comparing with the Sr doping. It can be concluded that Sr and Nd doped LSO via interstitial oxygen ion conduction mechanism, which produced a more effect on the conductivity than cation vacancy. The oxygen ion conductivity was improved because Sr and Nd doping increased the amounts of interstitial oxygen.

参考文献/References:

［1］Gasparyan H, Neophytides S, Niakolas D, et al. Synthesis and characterization of doped apatitetype lanthanum silicates for SOFC applications［J］. Solid State Ionics, 2011, 192(1):158162.
［2］Zhang L, He H Q, Wu H, et al. Synthesis and characterization of doped La9ASi6O26.5 (A = Ca, Sr, Ba) oxyapatite electrolyte by a waterbased gelcasting route［J］. International Journal of Hydrogen Energy, 2011, 36(11):68626874.
［3］张兰.磷灰石结构电解质La10xSi6O271.5x的合成及电性质［J］.电源技术研究与设计，2009，33（11）：980884.
［4］Nakayama S, Kageyama T, Aono H，et al. Ionic conductivity of lanthanoid silicates, Ln10(SiO4)6O3(Ln=La, Nd, Sm, Gd, Dy, Y, Ho, Er and Yb) ［J］. J Mater Chem, 1995（5）: 18011805.
［5］Nakayama S, Aono H, Sadaoka Y. Ionic conductivity of Ln10(SiO4)6O3 (Ln = La, Nd, Sm, Gd and Dy) ［J］. Chem Lett, 1995, 24: 431.
［6］Nakayama S, Higuchi Y, Kondo Y, et al. Effects of cation or oxide iondefect on conductivities of apatitetype LaGeO system ceramics ［J］. Solid State Ionics, 2004,170: 219223.
［7］Nakayama S, Sakamoto M. Electrical Properties of New Type High Oxide Ionic Conductor RE10Si6O27(RE=La, Pr, Nd, Sm, Gd, Dy) ［J］. J Eur Ceram Soc, 1998, 18: 14131418.
［8］McFarlane J, Barth S, Swaffer M, et al. Synthesis and conductivities of the apatitetype systems, La9.33+xSi6yMyO26+z (M=Co, Fe, Mn) and La8Mn2Si6O26［J］. Ionics, 2002 (8): 149154.
［9］Sansom J E H, Tolchard J R, Slater P R, et al. Synthesis and structural characterisation of the apatitetype phases La10xSi6O26+z doped with Ga［J］. Solid State Ionics, 2004, 167: 1720.
［10］Najib A, Sansom J E H, Tolchard J R, et al. Doping strategies to optimise the oxide ion conductivity in apatitetype ionic conductors［J］.Dalton Trans, 2004(19):31063109.
［11］Yoshioka H. Oxide ionic conductivity of apatitetype lanthanum silicates ［J］. J Alloys Compd, 2006, 408412: 649652.
［12］Zhang H, Li F, Jin J. Synthesis and characterization of (Mg, Al)doped apatitetype lanthanum germinate［J］.Solid State Ionics, 2008, 179: 10241028.
［13］LeónReina L, PorrasVázquez J M,  Losilla E R, et al. Interstitial oxide positions in oxygenexcess oxyapatites［J］.Solid State Ionics, 2006, 177: 13071315.
［14］Sansom J E H, Richings D, Slater P R. A powder neutron diffraction study of the oxideionconducting apatitetype phases, La9.33Si6O26 and La8Sr2Si6O26［J］. Solid State Ionics, 2001, 139(3/4): 205210.
［15］Islam M S, Tolchard J R, Slater P R. An apatite for fast oxide ion conduction［J］.Chem Commun, 2003: 14861487.
［16］Tolchard J R, Islam M S, Slater P R. Defect chemistry and oxygen ion migration in the apatitetype materials La9.33Si6O26 and La8Sr2Si6O26［J］.J Mater Chem, 2003, 13: 19561961.
［17］Tolchard J R, Slater P R, Islam M S. Insight into doping effects in apatite silicate ionic conductors［J］.Adv Funct Mater, 2007, 17: 25642571.
［18］Slater P R, Sansom J E H, Tolchard J R. Development of apatitetype Oxide ion conductors［J］.The chemical record, 2004, 4: 373384.
［19］Irvine J T S, Corcoran D J D, Cull P A. Structure and ionic conduction in solids［J］.Nordic Energy Workshop, 2000: 3740.
［20］Islam M S, Tolchard J R, Slater P R. An apatite for fast oxide ion conduction［J］.Chem Commun, 2003:14861487.
［21］Panteix PJ, Julien I, BernacheAssollant D,  et al. Synthesis and characterization of oxide ions conductors with the apatite structure for intermediate temperature SOFC［J］.Mater Chem Phys, 2006, 95: 313320.
［22］Reina L L, Losilla E R, Lara  M M, et al. Interstitial oxygen conduction in lanthanum oxyapatite electrolytes［J］.J Mater Chem, 2004, 14: 11421149.

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