甘氨酸-硝酸盐法制备Ce_(0.8)Gd_(0.2)O_(1.85)阳极材料的研究Preparation Research of Ce_(0.8)Gd_(0.2)O_(1.85) Anode Materials by Glicine Nitrate Method
陈秀华;刘荣辉;马文会;王华;
摘要(Abstract)：
采用甘氨酸-硝酸盐法制备了Ce0.8Gd0.2O1.85(GDC82)阳极材料。用TGA-DSC对前驱体物料烧结过程进行分析。用XRD,SEM,直流四探针法,TPR等技术对材料的性能进行表征。前驱体物料经燃烧后,900℃下烧结4 h后,得到单一萤石结构的材料。在50~850℃范围内,GDC82材料在空气气氛下的电导率整体较小,且随温度的升高变化不大,在850℃为0.05 S.cm-1。GDC82在H2气氛下的总电导率整体增加,且随温度的升高而迅速增加,850℃达到0.4 S.cm-1。GDC82与电解质材料La1-xSrxGa1-yMgyO3-δ(LSGM)混合物在1200℃下烧结15 h后,有少量MgCe杂相生成。GDC82与La1-xSrxCr1-yMnyO3-δ(LSCM)阳极材料化学相容性较好。GDC82对氢气和甲烷具有较好的催化氧化效果。
关键词(KeyWords)： Ce0.8Gd0.2O1.85;甘氨酸-硝酸盐;导电性能;催化性能
基金项目(Foundation): 国家自然科学基金(50204007)项目;; 云南省中青年学术技术带头人后备人才(2005PY01-33)项目
作者(Author): 陈秀华;刘荣辉;马文会;王华;
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DOI:
参考文献(References)：
- [1]Gorte R J,Vohs J M.Novel SOFC anodes for the direct electro-chemical oxidation of hydrocarbons[J].Journal of catalysis,2003,216:477.
- [2]黄贤良,赵海雷,吴卫江,等.固体氧化物燃料电池阳极材料的研究进展[J].硅酸盐学报,2005,23(11):1407.
- [3]Minh N Q.Ceramic fuel cells[J].J.Am.Ceram.Soc.,1993,76:563.
- [4]Koh J H,Yoo Y S,Park J W,et al.Carbon deposition and cellperformance of Ni-YSZ anode support SOFC with methane fuel[J].Solid state ionics,2002,149:157.
- [5]查少武,顾云峰,付清溪,等.CeO2-Y2O3固体氧化物燃料电池的电化学性能[J].功能材料,2000,31(6):612.
- [6]Xia Changrong,Liu Meilin.Low-temperature SOFCs based onGd0.1Ce0.9O1.95fabricated dry pressing[J].Solid State Ionics,2001,144(3-4):249.
- [7]Matsui T,Inaba M,Minesshige A,et al.Electrochemicalproperties of ceria-based oxides for use in intermediate-tempera-ture SOFCs[J].Solid State Ionics,2005,176:647.
- [8]Mogensen M,Sammes N M,Tompsett G A.Physical,chemicaland electrochemical properties of pure and doped ceria[J].SolidSate Ionics,2000,129:63.
- [9]尹艳红,李少玉,朱威,等.钙掺杂的氧化铈用于中温SOFCs阳极材料研究[J].中国稀土学报,2005,23(3):317.
- [10]王健,孙杰,邱新平,等.Ni/CeO2和Ni-Cu/CeO2催化剂上的乙醇水蒸气重整制氢反应[J].电源技术,2006,30(3):234.
- [11]李春林,伏义路,卞国柱.不同方法制备的Ni/ZrO2-CeO2-Al2O3催化剂对CH4-CO2重整反应的催化性能[J].催化学报,2003,24(3):187.
- [12]Liu Ronghui,Ma Wenhui,Wang Hua,et al.Synthesis ofLaGaO3-based electrolyte material and its compatibility with novelelectrode materials[J].Journal of Rare Earths,2005,23(spe-cial):214.
- [13]Xin Jiayu,Wang Hua,He Fang,et al.Thermodynamic anfequilibrium composition analysis of using iron oxide as oxygen car-rier in nonflame combustion technology[J].Journal of Naturalgas Chemistry,2005,14:248.
- [14]李文兵,袁章福,刘建勋,等.含钛矿物加碳氯化反应的热力学分析[J].过程工程学报,2004,4(2):121.
- [15]叶青,徐柏庆.Ce1-xZrxO2的氧化还原性能及其对CO2重整CH4反应的影响[J].催化学报,2006,27(2):151.
- [16]Larrondo S,Vidal M A,Irigoyen B,et al.Preparation andcharacterization of Ce/Zr mixed oixdes and their use as catalystsfor the direct oxidation of dry CH4[J].Catalysis Today,2005,107-108:53.