Carbon doping of self-organized TiO2 nanotube layers by thermal acetylene treatment
Carbon doping of self-organized TiO2 nanotube layers by thermal acetylene treatment
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DOI：
10.1088/0957-4484/18/10/105604
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发表时间：
2007-03-14
期刊：
影响因子：
3.5
通讯作者：
Schmuki, Patrik
中科院分区：
文献类型：
--
作者：
Hahn, Robert;Ghicov, Andrei;Schmuki, Patrik
在HF/Na 2 HPO 4电解液中，通过电化学阳极氧化钛形成自组织的TiO 2纳米管层。在500 ° C下在N-2和乙炔（C2 H2）的混合流下处理管。利用SEM、XRD和光电化学测试对样品进行了表征。结果表明，乙炔处理的管层表现出显着的光响应在整个范围内的可见光到近红外区域（1.5 eV）。这种在相当温和的条件下的碳掺杂处理不会导致对纳米管形态的任何结构损伤。
Self-organized layers of TiO2 nanotubes were formed by electrochemical anodization of Ti in a HF/Na2HPO4 electrolyte. The tubes were treated at 500 degrees C under a mixed flux of N-2 and acetylene (C2H2). The samples were characterized using SEM, XRD and photoelectrochemical measurements. The results show that the acetylene treated tube layers exhibit a significant photoresponse over the whole range of visible light up to the near-IR region (1.5 eV). This carbon doping treatment at comparable mild conditions does not lead to any structural damage to the morphology of the nanotubes.