Computational study on the catalytic mechanism of oxygen reduction on La0.5Sr0.5MnO3 in solid oxide fuel cells
Computational study on the catalytic mechanism of oxygen reduction on La0.5Sr0.5MnO3 in solid oxide fuel cells
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DOI：
10.1002/anie.200700411
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发表时间：
2007-01-01
影响因子：
16.6
通讯作者：
Liu, Meilin
中科院分区：
文献类型：
--
作者：
Choi, YongMan;Lin, M. C.;Liu, Meilin
在中温（500- 700 ℃）下运行的固体氧化物燃料电池（SOFC）的新型阴极材料的开发已经引起了人们的广泛关注[1]，因为它们有可能显著降低SOFC技术的成本。[2]掺锶锰氧化镧La 1 SrxMnO 3SrOd（LSM）由于其与YSZ电解质（氧化钇稳定的氧化锆; 8mol%Y2O3）的优异的热和化学相容性而被广泛用作SOFC的阴极。然而，其催化活性不足以用于低温应用。[3]到目前为止，已经研究了几种类型的钙钛矿阴极材料来取代LSM，但几乎没有成功;它们包括具有高氧离子电导率的Sr掺杂钴酸镧（La 1 SrxSrxCoO 3Srxd，LSC）。
The development of novel cathode materials for solid oxide fuel cells (SOFCs) that operate at intermediate temperatures (500–7008C) has attracted much attention [1] because of their potential to dramatically reduce the cost of SOFC technology.[2] Strontium-doped lanthanum manganite La1ÀxSrxMnO3Àd (LSM) has been widely used as a cathode for SOFCs because of its excellent thermal and chemical compatibility with the YSZ electrolyte (yttria-stabilized zirconia; 8 mol% Y2O3). However, its catalytic activity is inadequate for low-temperature applications.[3] To date, several types of perovskite cathode materials have been studied to replace LSM but with little success; they include Srdoped lanthanum cobaltite (La1ÀxSrxCoO3Àd, LSC) with high oxygen-ion conductivity.