叙述了掺杂LaGaO3(LSGM)作为优良的中温SOFC电解质的研究现状.在800℃左右,10-16≤PO2≤105Pa氧分压范围内,LSGM几乎是单纯的氧离子导体,具有较高的电导率,σ大于或等于0.1S/cm,而且长期保持稳定.在LSGM中掺杂少量低价金属阳离子,可望提高LSGM的电导率.LSGM存在的主要问题是Ga的蒸发.LSGM粉末的制备方法主要有3种:固态反应法、尿素法和Sol-gel法.
参考文献
| [1] | 刘旭俐,马峻峰,刘文化,徐刚,李海舰,杨琳琳.固体氧化物燃料电池材料的研究进展[J].硅酸盐通报,2001(01):24-29,53. |
| [2] | Huang KQ.;Goodenough JB.;Tichy RS. .Superior perovskite oxide-ion conductor; strontium- and magnesium-doped LaGaO3: I, phase relationships and electrical properties[J].Journal of the American Ceramic Society,1998(10):2565-2575. |
| [3] | Mathews T.;Antony MP.;Sellar JR.;Muddle BC.;Manoravi P. .Fabrication of La1-xSrxGa1-yMgyO3-(x plus y)/2 thin films by pulsed laser ablation[J].Solid state ionics,2000(1/4):397-402. |
| [4] | ISHIHARA T;Matsuda H;Takita Y .Doped LaGaO3 perovskite type oxide as a new oxide ionic conductor[J].Journal of the American Society,1994,116:3801-3803. |
| [5] | Yamaji K.;Ishikawa M.;Sakai N.;Yokokawa H.;Horita T. .Compatibility of La0.9Sr0.1Ga0.8Mg0.2O2.85 as the electrolyte for SOFCs[J].Solid state ionics,1998(1/4):415-421. |
| [6] | Yamaji K.;Horita T.;Sakai N.;Yokokawa H.;Negishi H. .Vaporization process of Ga from doped LaGaO3 electrolytes in reducing atmospheres[J].Solid state ionics,2000(1/4):389-396. |
| [7] | Yamaji Katsuhiko;Ishikawa Masahiko;Sakai Natsuko;Yokokawa Harumi;Horita Teruhisa .Chemical stability of the La_(0.9)Sr_(0.1)Ga_(0.8)Mg_(0.2) O_(2.85) electrolyte in a reducing atmosphere[J].Solid state ionics,1999(1/4):217-224. |
| [8] | Ishihara T.;Furutani H.;Takita Y.;Akbay T. .Improved oxide ion conductivity of Co doped La0.8Sr0.2Ga0.8Mg0.2O3 perovskite type oxide[J].Solid state ionics,1998(Special Issue SI):585-591. |
| [9] | Kharton VV.;Yaremchenko AA.;Baker RT.;Gharbage B.;Mather GC.;Figueiredo FM.;Naumovich EN.;Marques FMB.;Viskup AP. .Ionic conductivity of La(Sr)Ga(Mg,M)O3-delta (M = Ti, Cr, Fe, Co, Ni): effects of transition metal dopants[J].Solid state ionics,2000(1/2):119-130. |
| [10] | Trofimenko N.;Ullmann H. .Transition metal doped lanthanum gallates[J].Solid state ionics,1999(3/4):215-227. |
| [11] | Kuroda K.;Adachi K.;Akikusa J.;Tamou Y.;Komada N. Ishihara T.;Takita Y.;Hashimoto I. .Characterization of solid oxide fuel cell using doped lanthanum gallate[J].Solid state ionics,2000(3/4):199-208. |
| [12] | Ishihara T.;Takita Y.;Matsuda H. .EFFECTS OF RARE EARTH CATIONS DOPED FOR LA SITE ON THE OXIDE IONIC CONDUCTIVITY OF LAGAO3-BASED PEROVSKITE TYPE OXIDE[J].Solid state ionics,1995(0):147-151. |
| [13] | Huang K;Goodenough J B .A solid oxide fuel cell based on Sr- and Mg-doped LaGaO3 electrolyte:the role of a rare earth based oxide buffer[J].Journal of Alloys and Compounds,2000,303-304:454-464. |
| [14] | Inagaki T;Miura K;Yoshida H et al.High performance electrodes for reduced temperature solid oxide fuel cellwith doped lanthanum gallate electrolyte ⅡLa(Sr)CoO3 catho-des[J].Journal of Power Sources,2000(86):347-351. |
| [15] | HROVAT M;Ahmad K A;Samardzija Z et al.Interactions between lanthanum and gallate based solid electrolyte and ceria[J].Materials Research Bulletin,1999,34:2027-2034. |
| [16] | Huang KQ.;Goodenough JB.;Feng M. .SOL-GEL SYNTHESIS OF A NEW OXIDE-ION CONDUCTOR SR- AND MG-DOPED LAGAO3 PEROVSKITE[J].Journal of the American Ceramic Society,1996(4):1100-1104. |
| [17] | Mathews T.;Sellar JR.;Muddle BC.;Rabu N. .Fabrication of La1-xSrxGa1-yMgyO3-(x+y)/2 thin films by electrophoretic deposition and its conductivity measurement[J].Solid state ionics,2000(1/4):111-115. |
| [18] | Choy K;Bai W;Charojrochkul S et al.The development of intermediate-temperature solid oxide fuel cells for the next millennium[J].Journal of Power Sources,1998,71:361-369. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%