镓酸镧基中温-SOFC的新型阳极NiO-La_(0.3)Ce_(0.7)O_(2-δ)研究  

Investigation of Novel Anode NiO-La_(0.3)Ce_(0.7)O_(2-δ) of IT-SOFC with LSGM-based Electrolyte

作　　者：朱晓东[1] 孙克宁[1] 张乃庆[1] 陈新兵[1] 付强[1] 贾德昌 

机构地区：[1]哈尔滨工业大学应用化学系 [2]材料科学与工程博士后流动站,哈尔滨150001

出　　处：《高等学校化学学报》2007年第5期824-826,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:90510006)资助.

摘　　要：NiO-La0.3Ce0.7O2-δ(LDC30) novel anode was investigated for IT-SOFCs(Intermediate Temperature-Solid Oxide Fuel Cells) with LaGaO3-based electrolyte. The results showed that LDC30 has a suitable chemical compatibility with NiO and NiO-LDC30 has a good thermal expansion matching with LDC30 interlayer and LSGM(La0.8Sr0.2Ga0.8Mg0.2O3-δ) electrolyte, so NiO-LDC30/LDC30 was considered as a feasible and novel anode system. It was also shown that NiO content plays a key role on polarization performance and morphology of the anode. When the content of NiO was 60%(mass fraction), the polarization loss of anode was the lowest. Next we will optimize the porosity and sintering procedure to modify the microstructure and performance of the anode.NiO-La0.3Ce0.7O2-δ （ LDC30 ） novel anode was investigated for IT-SOFCs （ Intermediate Tempera- ture-Solid Oxide Fuel Cells） with LaGaO3-based electrolyte. The results showed that LDC30 has a suitable chemical compatibility with NiO and NiO-LDC30 has a good thermal expansion matching with LDC30 interlayer and LSGM（ La0.8Sr0.2Ga0.8Mg0.2O3-δ） electrolyte, so NiO-LDC30/LDC30 was considered as a feasible and novel anode system. It was also shown that NiO content plays a key role on polarization performance and morphology of the anode. When the content of NiO was 60% （mass fraction）, the polarization loss of anode was the lowest. Next we will optimize the porosity and sintering procedure to modify the microstructure and performance of the anode.

关 键 词：NiO-La0.3Ce0.7O2-δ La0.8Sr0.2Ga0.8Mg0.2O3-δ 阻挡层 中温固体氧化物燃料电池 

分 类 号：O614.3[理学—无机化学] TM911.4[理学—化学]