掺杂SrTiO_3的SOFC阳极材料电性能的研究进展
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摘要
为了获得电性能优良的SOFC阳极材料,研究者通过对纯的SrTiO_3进行掺杂来提高材料的导电性及催化活性.本文综述了A位掺杂、B位掺杂及(A,B)位共掺杂SrTiO_3阳极材料的研究进展.从不同的掺杂类型、掺杂元素、掺杂浓度、气氛条件、烧结温度及缺位类型等因素分析掺杂对SrTiO_3阳极材料的影响.A位常见的掺杂元素有La和Y,B位常见的掺杂元素有Fe和Nb,通过A位或B位掺杂改善材料的电性能.通过(A,B)位共掺杂可以抑制阳极与固体电解质之间反应的发生,来提高材料的稳定性.此外,利用A位缺位的(A,B)位共掺杂SrTiO_3有利于提高材料的离子电导率,使材料的电性能得到改善.
In order to obtain SOFC anode materials with excellent electrical properties, we improved the conductivity and catalytic activity of the materials by doping the pure SrTiO_3. In this paper, the research progress of A-doped, B-doped and(A, B) co-doped SrTiO_3 anode materials is reviewed. The effects of doping on SrTiO_3 anode materials were analyzed from different doping types, doping elements, doping concentration, atmospheric conditions, sintering temperature and defect types. The common doping elements in the Asite are La and Y. The common doping elements in the B site are Fe and Nb. The electrical properties of the material are improved by doping at the A or B site. The(A, B) co-doped SrTiO_3 can suppress the occurrence of a reaction between the anode and the solid electrolyte, and improve the stability of the material. In addition, the(A, B) co-doped SrTiO_3 with the A-site-deficient is beneficial to increase the ionic conductivity of the material and improve the electrical properties of the material.
In order to obtain SOFC anode materials with excellent electrical properties, we improved the conductivity and catalytic activity of the materials by doping the pure SrTiO_3. In this paper, the research progress of A-doped, B-doped and(A, B) co-doped SrTiO_3 anode materials is reviewed. The effects of doping on SrTiO_3 anode materials were analyzed from different doping types, doping elements, doping concentration, atmospheric conditions, sintering temperature and defect types. The common doping elements in the Asite are La and Y. The common doping elements in the B site are Fe and Nb. The electrical properties of the material are improved by doping at the A or B site. The(A, B) co-doped SrTiO_3 can suppress the occurrence of a reaction between the anode and the solid electrolyte, and improve the stability of the material. In addition, the(A, B) co-doped SrTiO_3 with the A-site-deficient is beneficial to increase the ionic conductivity of the material and improve the electrical properties of the material.
引文
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[2] 唐旭.IT-SOFC阴极材料的制备与应用[D].大连:大连工业大学,2008.
[3] 朱继平.新能源材料技术[M].北京:化学工业出版社,2015.
[4] Huang X,Zhao H,Shen W,et al.Effect of fabrication parameters on the electrical conductivity of YxSr1-xTiO3,for anode materials[J].Journal of Physics & Chemistry of Solids,2006,67(12):2609-2613.
[5] 仲崇英.ABO3型电子-离子混合导体材料的电化学性能研究[D].包头:内蒙古科技大学,2009.
[6] 常亮亮.钛酸锶掺杂改性研究进展[J].材料开发与应用,2014(1):89-93.
[7] Kurokawa H,Yang L,Jacobson C P,et al.Y-doped SrTiO3 based sulfur tolerant anode for solid oxide fuel cells[J].Journal of Power Sources,2007,164(2):510-518.
[8] Yin J,Guan L,Zhao X,et al.Electrorheological behavior of rare earth-doped barium titanatesuspensions[J].Progress in Natural Science,2002,12(4):278-283.
[9] Kundu T K,Mishra S,Karak N,et al.Effect of Ti4+ ions doping on microstructure and dc resistivity of nickel ferrites[J].Journal of the Physics and Chemistry of Solids,2012,73(4):579-583.
[10] Erbahar D,Emül Y,Acikgoz M.Analysis of paramagnetic3dions (Cr3+,and Fe3+) centers in fluoroelpasolite Cs2NaGaF6 crystal by both DFT and SPM calculations[J].Chemical Physics,2018,501:93-100.
[11] 尚鹏鹏,张波萍,李敬锋,等.LaxSr(1-x)TiO3氧化物热电材料的制备与电传输性能[J].稀有金属材料与工程,2009,38(S2):315-318.
[12] Qin M,Gao F,Cizek J,et al.Point defect structure of La-doped SrTiO3 ceramics with colossal permittivity[J].ActaMaterialia,2019,164:76-89.
[13] Battle P D,Bennett J E,Sloan J,et al.A-Site Cation-Vacancy Ordering in Sr1-3x/2LaxTiO3:A Study by HRTEM[J].Journal of Solid State Chemistry,2000,149(2):360-369.
[14] Hashimoto S,Kindermann L,Poulsen F W,et al.A study on the structural and electrical properties of lanthanum-doped strontium titanate prepared in air[J].Journal of Alloys and Compounds,2005,397(1-2):245-249.
[15] Hashimoto S,Kindermann L,Larsen P H,et al.Conductivity and expansion at high temperature in Sr0.7La0.3TiO3-δ prepared under reducing atmosphere[J].Journal of Electroceramics,2006,16(2):103-107.
[16] Marina O A,Canfield N L,Stevenson J W.Thermal,electrical,and electrocatalyticalproperties of lanthanum-doped strontium titanate[J].Solid State Ionics,2002,149(1-2):21-28.
[17] Moos R,Sch?llhammer S,H?rdtl KH.Electron mobility of Sr1-xLaxTiO3 ceramics between 600 ℃ and 1300℃[J].Applied Physics A,1997,65(3):291-294.
[18] Park B K,Lee J W,Lee S B,et al.La-doped SrTiO3interconnect materials for anode-supported flat-tubular solid oxide fuel cells[J].International Journal of Hydrogen Energy,2012,37(5):4319-4327.
[19] Lee J G,Shul Y G.Physical and electrochemical properties of (La0.3Sr0.7)0.93TiO3–δ synthesized by Pechini method as an anode material for solid oxide fuel cells[J].Journal of Sol-Gel Science and Technology,2014,69(1):148-154.
[20] Savaniu C D,Irvine J T S.Reduction studies and evaluation of surface modified A-site deficient La-doped SrTiO3 as anode material for IT-SOFCs[J].Journal of Materials Chemistry,2009,19(43):8119-8128.
[21] Almeida A,Chaves M R,Gregora I,et al.Lattice Dynamics and Negative Search for Pyroelectricity in Sr(1-1.5x)LaxTiO3 Ceramics[J].Ferroelectrics,2005,318(1):147-153.
[22] Zhu X B,Liu S M,Hao H R,et al.Chemical solution deposition preparation of Sr1-xLaxTiO3 (0≤x≤0.4)buffer layers for YBCO coated conductors[J].Physica C Superconductivity & Its Applications,2005,418(1):59-62.
[23] Yun J,Guo D,Chen Y,et al.The effect of La doping concentration on optical and electrical properties of LaxSr1-xTiO3 thin film fabricated by sol-gel process[J].Thin Solid Films,2016,600:1-5.
[24] Akin I,Li M,Lu Z,et al.Oxygen-loss in A-site deficient Sr0.85La0.10TiO3 perovskite[J].RSC Advances,2014,4(4):32549-32554.
[25] Zhang S L,Li C X,Li C J.Chemical compatibility and properties of suspension plasma-sprayed SrTiO3-based anodes for intermediate-temperature solid oxide fuel cells[J].Journal of Power Sources,2014,264:195-205.
[26] Shen X,Sasaki K.Highly redox-resistant solid oxide fuel cell anode materials based on La-doped SrTiO3 by catalyst impregnation strategy[J].Journal of Power Sources,2016,320:180-187.
[27] Li X,Zhao H,Zhou X,et al.Electrical conductivity and structural stability of La-doped SrTiO3 with A-site deficiency as anode materials for solid oxide fuel cells[J].International Journal of Hydrogen Energy,2010,35(15):7913-7918.
[28] Rosa Silva E,Curi M,Furtado J G,et al.The effect of calcination atmosphere on structural properties of Y-doped SrTiO3perovskite anode for SOFC prepared by solid-state reaction[J].Ceramics International,2019,45:761-770.
[29] Puengjinda P,Muroyama H,Matsui T,et al.Optimization of anode material composed of Y-doped SrTiO3 and metal and/or oxide additives for solid oxide fuel cells[J].Journal of Power Sources,2012,204:67-73.
[30] Puengjinda P,Muroyama H,Matsui T,et al.Stability of solid oxide fuel cell anodes based on YST-SDC composite with Ni catalyst[J].Journal of Power Sources,2012,216:409-416.
[31] Li X,Zhao H,Shen W,et al.Synthesis and properties of Y-doped SrTiO3 as an anode material for SOFCs[J].Journal of Power Sources,2007,166(1):47-52.
[32] Ma Q,Tietz F,Detlev S.Nonstoichiometric Y-substituted SrTiO3 materials as anodes for solid oxide fuel cells[J].Solid State Ionics,2011,192(1):535-539.
[33] Zhao H,Gao F,Li X,et al.Electrical properties of yttrium doped strontium titanate with A-site deficiency as potential anode materials for solid oxide fuel cells[J].Solid State Ionics,2009,180(2-3):193-197.
[34] Ma Q,Iwanschitz B,Dashjav E,et al.Electrochemical performance and stability of electrolyte-supported solid oxide fuel cells based on Y-substituted SrTiO3 ceramic anodes[J].Solid State Ionics,2014,262:465-468.
[35] Gao F,Zhao H,Li X,et al.Preparation and electrical properties of yttrium-doped strontium titanate with B-site deficiency[J].Journal of Power Sources,2008,185(1):26-31.
[36] Singh S,Singh P,Viviani M,et al.Dy doped SrTiO3:A promising anodic material in solid oxide fuel cells[J].International Journal of Hydrogen Energy,2018,43(41):19242-19249.
[37] Hui S,Petric A.Electrical properties of yttrium-doped strontium titanate under reducing conditions[J].Cheminform,2002,149(1):J1-J10.
[38] Muta H,Kurosaki K,Yamanaka S.Thermoelectric properties of rare earth doped SrTiO3[J].Journal of Alloys and Compounds,2003,350(1-2):292-295.
[39] 黄永珍,程继贵,董洁,等.钐掺杂钛酸锶阳极催化材料的制备及其性能[J].稀有金属材料与工程,2009,38(S1):178-182.
[40] Singh R P,Paul S,Omar S.Phase evolution in CeO2-doped SrTiO3[J].Journal of Alloys and Compounds,2015,623:197-202.
[41] 周雄,赵海雷,徐南生,等.Ba掺杂SrTiO3 SOFC阳极材料的制备与电性能分析[J].硅酸盐学报,2011,39(6):958-962.
[42] Ma Q,Tietz F.Comparison of Y and La-substituted SrTiO3 as the anode materials for SOFCs[J].Solid State Ionics,2012,225:108-112.
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