期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

Electrochemical synthesis, characterization and thermal properties of niobium ethoxide 被引量：1

Electrochemical synthesis,characterization and thermal properties of niobium ethoxide
下载PDF
导出
摘要 Niobium(V) ethoxide(Nb(OEt)5) was synthesized by electrochemical reaction of ethanol with niobium plate as the sacrificial anode,stainless steel as the cathode and tetraethylammonium chloride(TEAC) as the conductive additive.The condensates were isolated by vacuum distillation under 5 kPa.The product was characterized by Fourier transform infrared(FT-IR) spectra,Raman spectra and nuclear magnetic resonance(NMR) spectra.The results indicate that the product is niobium ethoxide.Thermal properties of niobium ethoxide were analysed by TG/DTG.Vapour pressure was calculated from the Langmuir equation and the enthalpy of vaporization was calculated from the vapour pressure-temperature data using the Clausius-Clapeyron equation.The concentrations of impurity metallic elements in the sample were detected by ICP-MS.It is shown that the purity can reach 99.997%.The volatility and purity of the niobium ethoxide ensure that it could be a good precursor for chemical vapor deposition and atomic layer deposition of niobium oxide layers. Niobium（V） ethoxide （Nb（OEt）5） was synthesized by electrochemical reaction of ethanol with niobium plate as the sacrificial anode, stainless steel as the cathode and tetraethylammonium chloride （TEAC） as the conductive additive. The condensates were isolated by vacuum distillation under 5 kPa. The product was characterized by Fourier transform infrared （FT-IR） spectra, Raman spectra and nuclear magnetic resonance （NMR） spectra. The results indicate that the product is niobium ethoxide. Thermal properties of niobium ethoxide were analysed by TG/DTG. Vapour pressure was calculated from the Langmuir equation and the enthalpy of vaporization was calculated from the vapour pressure-temperature data using the Clausius Clapeyron equation. The concentrations of impurity metallic elements in the sample were detected by ICP-MS. It is shown that the purity can reach 99.997%. The volatility and purity of the niobium ethoxide ensure that it could be a good precursor for chemical vapor deposition and atomic layer deposition of niobium oxide layers.
作者 蔡亚楠 杨声海 金胜明 杨海平 侯国锋 夏姣云
机构地区 School of Minerals Processing and Bioengineering School of Metallurgical Science and Engineering
出处 《Journal of Central South University》 SCIE EI CAS 2011年第1期73-77,共5页 中南大学学报（英文版）
基金 Project(2007AA03Z425) supported by the National Hi-tech Research and Development Program of China Project(50404011) supported by the National Natural Science Foundation of China
关键词 electrochemical synthesis niobium ethoxide CHARACTERIZATION thermal analysis 铌(V) 电化学合成 热性能 乙醇 傅立叶变换红外光谱 Clapeyron方程 表征 Langmuir方程
分类号 O614.512 [理学—无机化学]
  • 相关文献

参考文献22

  • 1MASSE J P,SZYMANOWSKI H,ZABEIDA O,AMASSIAN A,KLEMBERG-SAPIEHA J E,MARTINU L.Stability and effect of annealing on the optical properties of plasma-deposited Ta205 and Nb205 films[J].Thin Solid Films,2006,515(4):1674-1682.
  • 2TANAKA A,MIYASHITA K,TASHIROT,KIMURAM,SUKEGAWA T.Preparation of lithium niobate films by metalorganic chemical vapor deposition with a lithium alkoxide source[J].Journal of Crystal Growth,1995,148(3):324-326.
  • 3MARUYAMA T,KANAGAWA T.Electrochromic properties of niobium oxide thin films prepared by chemical vapor deposition[J].Journal of the Electrochemical Society,1994,141(10):2868-2871.
  • 4WERNBERG A A,GYSLING H J.Chemical vapor deposition of niobium and tantalum oxide films:US,5271957[P].1993-12-21.
  • 5BRADLEY D C.Metal alkoxides as precursors for electronic and ceramic materials[J].Chemical Reviews,2002,89(6):1317-1322.
  • 6WOOD B D,MOCANU V,GATES B D.Solution-phase synthesis of crystalline lithium niobate nanostrnctures[J].Advanced Materials,2008,20(23):4552-4556.
  • 7MACEK M,OREL B.Electrochromism of sol-gel derived niobium oxide films[J].Solar Energy Materials and Solar Cells,1998,54(1):121-130.
  • 8PIGNOLET A,RAO G M,KRUPANIDHI S B.Rapid thermal processed thin films of niobium pentoxide (Nb2Os) deposited by reactive magnetron sputtering[J].Thin Solid Films,1995,261(1/2):18-24.
  • 9AKIYAMA Y,SHITANAKA K,MURAKAMI H,SHIN Y S,YOSHIDA M,IMAISHI N.Epitaxial growth of lithium niobate film using metalorganic chemical vapor deposition[J].Thin Solid Films,2007,515(12):4975-4979.
  • 10童海霞,陈启元,胡慧萍,尹周澜,李洁,周建良.Preparation, characterization and photocatalytic behavior of WO_3-TiO_2/Nb_2O_5 catalysts[J].Journal of Central South University of Technology,2007,14(6):788-792. 被引量：5

二级参考文献25

  • 1杨声海,潘泽强,李朝晖,唐谟堂,邱冠周.“牺牲”阳极法合成乙醇钽研究[J].稀有金属材料与工程,2006,35(4):625-628. 被引量：8
  • 2黄翠英,由万胜,党利琴,雷志斌,孙振刚,张澜萃.钕掺杂对纳米TiO_2光催化分解水制氢活性的影响[J].催化学报,2006,27(3):203-209. 被引量：18
  • 3杨声海,王亦男,何静,唐谟堂,邱冠周.高纯纳米氧化钽的制备[J].稀有金属材料与工程,2007,36(2):282-286. 被引量：8
  • 4OZER N, LAMPERT C M. Structural and optical properties of sol-gel deposited proton conducting Ta2O5 films [J]. Journal of Sol-Gel Technology, 1997, 8(1/3): 703-709.
  • 5MIKKO R, KAUPO K, ANTTI R, RAISANEN P I, LESKELA M, SAJAVAARA T, KEINONEN J. Atomic layer deposition of oxide thin films with metal alkoxides as oxygen sources [J]. Science, 2000, 288(5464): 319-321.
  • 6DONGJOON M, SUNGHO P, BUM-SEOK S, CHOI S, LEE N, LEE J H. Low temperature crystallization of high permittivity Ta oxide using an Nb oxide thin film for metal/insulator/metal capacitors in dynamic random access memory applications [J]. Journal of Vacuum Science and Technology B, 2005, 23(1): 80-83.
  • 7KERN W, CHEN A, SANDLER N. MOCVD of tantalum pentoxide for large-area ULSI circuit wafers [J]. Journal de Physique IV, 1991, C2(Suppl): 311-317.
  • 8CAVA R F, PECK W F, KRAJEWSKI J J. Enhancement of the dielectric constant of Ta2O5 through substitution with TiO2 [J]. Nature, 1995, 377(6546): 215-217.
  • 9WANG Wen, JIA De-chang, ZHOU Yu, YE Feng. Synthesis and characterization of nanosized SrBi2Ta2O9 powder by a novel sol-gel process [J]. Materials Research Bulletin, 2002, 37(15): 2517-2524.
  • 10CHENG Z X, KIMURA H, OZAWA K, MIYAZAKI A, KANNA C V. Ferroelectric lithium tantalate thin film derived from peroxide [J]. Journal of Alloys and Compounds, 2005, 402(1/2): 208-212.

共引文献6

引证文献1

Journal of Central South University
2011年 第1期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部