采用固相反应法成功制备了双相质子导体BaCe0.9Y0.1O3δ/La1.95Ca0.05Ce2O7-δ(7∶3、6∶4、5∶5、4∶6、3:7).用X射线衍射仪、扫描电子显微镜分别对样品的物相结构、微观形貌进行了表征,对样品在CO2和沸水中的稳定性进行了研究,并应用IM6e型电化学工作站测定了其在空气、氩气、湿润的4％H2/Ar 3种气氛从450～850℃的电导率.实验结果表明,不同比例复合的样品经1500℃烧结后均形成了明显的双相结构且获得了致密的烧结体.随着样品中La1.95Ca0.05Ce2O7-δ比例的增加,其对CO2和沸水的化学稳定性增加.在所研究的各种比例的复合材料中,BaCe0.9Y0.1O3δ-La1.95 Ca0.05Ce2O7-δ(3:7)具有最高的电导率,850℃时在湿润的4％H2/Ar气氛下的电导率为2.49×102S/cm,电导活化能为1.13eV.
参考文献
| [1] | Iwahara H;Uchida H;Ono K et al.Proton conduction in sintered oxides based on BaCeO3[J].Journal of the Electrochemical Society,1988,135(02):529-533. |
| [2] | 吕敬德,王岭,赵艳琴,戴磊,郭红霞,郭强强,陈学钊,郝静然.质子导体BaCe0.4Zr0.4M0.2O3-δ（M=In,Y,Gd,Sm）化学稳定性及电性能[J].无机化学学报,2008(05):696-700. |
| [3] | Meng Ni;Michael K.H. Leung;Dennis Y.C. Leung .Technological development of hydrogen production by solid oxide electrolyzer cell (SOEC)[J].International journal of hydrogen energy,2008(9):2337-2354. |
| [4] | Tanaka, M;Katahira, K;Asakura, Y;Ohshima, T .Hydrogen pump using a high-temperature proton conductor for nuclear fusion engineering applications[J].Solid state ionics,2010(3/4):215-218. |
| [5] | Zhiwen Zhu;Wenping Sun;Litao Yan;Weifeng Liu;Wei Liu .Synthesis and hydrogen permeation of Ni-Ba(Zr_(0.1)Ce_(0.7)Y_(0.2)) O_(3-δ) metal-ceramic asymmetric membranes[J].International journal of hydrogen energy,2011(10):6337-6342. |
| [6] | 王东,刘春明,王常珍.高温质子导体BaCe0.90 Y0.10 O3-α的制备与性质[J].材料与冶金学报,2008(04):273-279. |
| [7] | L(U) Jingde,WANG Ling,FAN Lihua,LI Yuehua,DAI Lei,GUO Hongxia.Chemical stability of doped BaCeO3-BaZrO3 solid solutions in different atmospheres[J].稀土学报（英文版）,2008(04):505-510. |
| [8] | Enhanced Sulfur and Coking Tolerance of a Mixed Ion Conductor for SOFCs: BaZr_(0.1)Ce_(0.7)Y_(0.2-x)Yb_xO_(3-δ)[J].Science,2009(Oct.2 TN.5949):126. |
| [9] | Zuo C D;Zha S W;Liu M L et al.Ba(Zr0.1Ce0.7Y0.2)O3-δ as an electrolyte for low-temperature solid-oxide fuel cells[J].Advanced Materials,2006,24(18):3317-3320. |
| [10] | Xie K;Yan R Q;Jiang Y Z et al.A simple and easy one step fabrication of thin BaZr0.1 Ce0.7 Y0.2O3-δ electro lyte membrane for solid oxide fuel cells[J].Journal of Membrane Science,2008,325(01):6-10. |
| [11] | Park, JS;Lee, JH;Lee, HW;Kim, BK .Low temperature sintering of BaZrO3-based proton conductors for intermediate temperature solid oxide fuel cells[J].Solid state ionics,2010(3/4):163-167. |
| [12] | Xie, Kui;Yan, Ruiqiang;Liu, Xingqin .A novel anode supported BaCe0.4Zr0.3Sn0.1Y0.2O3-delta electrolyte membrane for proton conducting solid oxide fuel cells[J].Electrochemistry communications,2009(8):1618-1622. |
| [13] | Kui Xie;Ruiqiang Yan;Xiaoxiang Xu;Xingqin Liu;Guangyao Meng .The chemical stability and conductivity of BaCe_(0.9-x)Y_xNb_(0.1)O_(3-σ) proton-conductive electrolyte for SOFC[J].Materials Research Bulletin,2009(7):1474-1480. |
| [14] | Youmin Guo;Ran Ran;Zongping Shao;shaomin Liu .Effect of Ba nonstoichiometry on the phase structure, sintering, electrical conductivity and phase stability of Ba(1±x)Ce_(0.4)Zr_(0.4)Y_(0.2)O_(3-δ) (0≤x≤0.20) proton conductors[J].International journal of hydrogen energy,2011(14):8450-8460. |
| [15] | Savaniu CD;Canales-Vazquez J;Irvine JTS .Investigation of proton conducting BaZr0.9Y0.1O2.95 : BaCe0.9Y0.1O2.95 core-shell structures[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2005(5):598-604. |
| [16] | Khani Z;Jacquin M T;Taillades G et al.Preparation of nanoparticle core-shell electrolyte materials for proton ceramic fuel cell[J].Chemistry of Materials,2010,22:1119-1125. |
| [17] | Yan L;Sun W;Bi L et al.Effect of Sm-doping on the hydrogen permeation of Ni La2Ce2O7 mixed protonic-electronic conductor[J].International Journal of Hy drogen Energy,2010,35:4508-4511. |
| [18] | Besikiotis, V.;Knee, C.S.;Ahmed, I.;Haugsrud, R.;Norby, T..Crystal structure, hydration and ionic conductivity of the inherently oxygen-deficient La_2Ce_2O_7[J].Solid state ionics,2012:1-7. |
| [19] | Ji-De Wang;Ya-Hong Xie;Zheng-Fang Zhang;Rui-Quan Liu;Zhi-Jie Li .Protonic conduction in Ca~(2+)-doped La_2M_2O_7 (M = Ce, Zr) with its application to ammonia synthesis electrochemically[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2005(8):1294-1302. |
| [20] | Zetian Tao;Lei Bi;Shuming Fang;Wei Liu .A stable La_(1.95)Ca_(0.05)Ce_2O_(7-δ) as the electrolyte for intermediate-temperature solid oxide fuel cells[J].Journal of Power Sources,2011(14):5840-5843. |
| [21] | He Wang;Ranran Peng;Xinfeng Wu .Sintering Behavior and Conductivity Study of Yttrium-Doped BaCeO_3-BaZrO_3 Solid Solutions Using ZnO Additives[J].Journal of the American Ceramic Society,2009(11):2623-2629. |
| [22] | Irvine J T S;Sinclair D C;West A R .Electroceramics:characterization by impedance spectroscopy[J].Advanced Materials,1990,2:132-138. |
| [23] | Zheng Y F;HeS C;Ge L et al.Effect of Sr on Smdoped ceria electrolyte[J].International Journal of Hydrogen Energy,2011,36:5128-5135. |
| [24] | 刘魁,戴磊,唐晓微,赵佳一,王岭,杨海超.Ti和Y双掺杂的BaCeO_3的制备和电性能研究[J].功能材料,2010(01):51-54. |
| [25] | 谢全安,唐晓微,李跃华,王婧,王岭,王永刚.Srx（CeZr）0.9Y0.1O3-δ（0.90≤x≤1.20）的制备及性能研究[J].功能材料,2009(05):798-801. |
| [26] | 马桂林,陈蓉,仇立干.Ba0.98Ce0.9Y0.1O3-α固体电解质的离子导电性[J].功能材料,2002(04):418-419,421. |
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