邵艳群,郭海燕,唐电,刘雪华,赖华成

• 1:福州大学材料研究所

摘要(Abstract)：

采用正硅酸乙酯的sol-gel法和RuCl3的Pechini法结合,制备了70mol%RuO2-30mol%SiO2二元氧化物粉末。采用红外光谱(FT-IR)、综合热分析、X射线衍射(XRD)、TEM和比表面(BET)等测试技术研究了产物的形成过程和组织结构。结果表明,晶体颗粒尺寸约为10nm。在200～600℃范围内,SiO2都保持非晶结构。200℃、400℃烧结的样品中晶体只有单质Ru。600℃时,90vol%的Ru被氧化为颗粒大小与Ru单质相当的RuO2。400℃烧结的样品比表面积最大,孔径最小。非晶SiO2可以有效阻止颗粒尺寸长大。这对于钛阳极涂层的制备非常有利。

关键词(KeyWords)： 柠檬酸盐凝胶法;纳米材料;组织结构;SiO2;RuO2

Abstract:

Keywords:

基金项目(Foundation): 国家“863”计划项目(2007AA03Z325);; 福建省科技厅国际合作重点项目(2007H0106);; 福建省自然科学基金项目(2009J01239);; 福州大学科技启动基金(2006-XQ-02)

作者(Author): 邵艳群,郭海燕,唐电,刘雪华,赖华成

DOI: 10.13289/j.issn.1009-6264.2010.03.003

参考文献(References)：

• [1]Trasatti S.Electrocatalysis:understanding the success of DSA[J].Electrochimica Acta,2000,45:2377-2385.
• [2]Bayer G,Wiedemann H G.Formation,dissociation and expansion behavior of platinum group metal oxides(PdO,RuO2,IrO2)[J].Thermochimica Acta,1975,11(1):79-88.
• [3]Chabanier C,Guay D.Activation and hydrogen absorption in thermally prepared RuO2and IrO2[J].Journal of Electroanalytical Chemistry,2004,570(1):13-27.
• [4]Yoshio Takasu,Norihiro Yoshinaga,Wataru Sugimoto.Oxygen reduction behavior of RuO2/Ti,IrO2/Ti and IrM(M:Ru,Mo,W,V)Ox/Ti binary oxide electrodes in a sulfuric acid solution[J].Electrochemistry Communications,2008,10(4):668-672.
• [5]Paníc V,Dekanski A,Wang G,et al.Morphology of RuO2-TiO2coatings and TEM characterization of oxide sols used for their preparation[J].Journal of Colloid and Interface Science,2003,263:68-73.
• [6]Lourdes Vázquez-Gómez,Erzsébet Horváth,János Kristóf,et al.Investigation of RuO2-SnO2thin film formation by thermogravimetry-mass spectrometry and infrared emission spectroscopy[J].Thin Solid Films,2006,515(4):1819-1824.
• [7]Mário H P Santana,Leonardo M Da Silva,Luiz A De Faria.Investigation of surface properties of Ru-based oxide electrodes containing Ti,Ce and Nb[J].Electrochimica Acta,2003,48:1885-189.
• [8]Fernández J L,Chialvo M R,Gennero de,et al.Preparation and electrochemical characterization of Ti/RuxMn1-x O2electrodes[J].Journal of Applied Electrochemistry,2002,32:513-520.
• [9]柯学标,唐电.铱钴涂层钛阳极的组织结构与析氧性能[J].福建工程学院学报,2007,5(3):211-213,249.KE Xue-biao,TANG Dian.On the structural and electrochem ical features of iridium-cobalt oxide coated titanium anodes[J].Journal of Fujian University of Technology,2007,5(3):211-213,249.
• [10]Zhang Teng,Tang Dian,Shao Yanqun,et al.Synthesis and characterization of nanoscale Ce(x)Ru(1-x)O2coatings with electrochemical activity[J].J Am Ceram Soc,2007,90(3)989-992.
• [11]János Kristóf,Tamás Szilágyi,Erzsébet Horváth,et al.Investigation of RuO2/Ta2O5thin film evolution by thermogravimetry combined with mass spectrometry[J].Thin Solid Films,2005,485(1-2):90-94.
• [12]刘雪华,唐电.RuO2-SiO2二元氧化物被覆钛涂层的制备[J].材料热处理学报,2007,28(S):198-201.LIU Xue-hua,TANG Dian.Preparation of binary RuO2-SiO2coatings on titanium[J].Transactions of Materials and Heat treatment,2007,28(S):198-201.
• [13]邵艳群,唐电.溶胶凝胶法制备纳米级RuO2过程中Ru的成因分析[J].材料热处理学报,2006,27(1):4-7.SHAO Yan-qun,TANG Dian.Study on the forming of Ru during the preparation for nano-scale RuO2using sol-gel technique[J].Transactions of Materials and Heat treatment,2006,27(1):4-7.

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