Synthesis and Characterization of Niobium-doped TiO_2 Nanotube Arrays by Anodization of Ti-20Nb Alloys

查看全文 作　　者：Zhengchao [1]Xu;Qi [1]Li;Shian [1]Gao;Jianku [2]Shangi

机构地区：[1]Materials Center for Water Purification,Shenyang National Laboratory for Materials Science,Institute of MetalResearch,Chinese Academy of Sciences,Shenyang 110016,China;[2]Department of Materials Science and Engineering,University of Illinois at Urbana-Champaign,Urbana,IL 61801,USA

出　　处：《Journal of Materials Science & Technology》索引2012年第28卷第10期,共6页

基　　金：supported by the National Natural Science Foundation of China (Grant No. 51102246);the Knowledge Innovation Program of Institute of Metal Research, Chinese Academy of Sciences (Grant No.Y0N5A111A1);the Youth Innovation Promotion Association, Chinese Academy of Sciences (Grant No.Y2N5711171) 摘　　要：Well crystallized niobium-doped TiO_2 nanotube arrays(TiNbO-NT) were successfully synthesized via the anodization of titanium/niobium alloy sheets,followed with a heat treatment at 550 C for 2 h.Morphology analysis results demonstrated that both the titanium/niobium alloy microstructure and the dissolution strength of electrolyte played major roles in the formation of nanotube structure.A single-phase microstructure was more favorable to the formation of uniform nanotube arrays,while modulating the dissolution strength of electrolyte was required to obtain nanotube arrays from the alloys with multi-phase microstructures.X-ray diffraction(XRD) and X-ray photoelectron(XPS) analysis results clearly demonstrated that niobium dopants(Nb 5+) were successfully doped into TiO_2 anatase lattice by substituting Ti 4+ in this approach. 关键词：碳纳米管阵列阳极氧化处理 TiO2 铌掺杂铌合金合成 X-射线光电子能谱表征

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Synthesis and Characterization of Niobium-doped TiO_2 Nanotube Arrays by Anodization of Ti-20Nb Alloys

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