期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 9, 期 8, 页码 2145-2149出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2007.06.006
关键词
pulse anodication; photoelectrochemical response; nanotube arrays; photovoltaic conversion
A pulse waveform for the anodic growth of TiO2 nanotube arrays is described. The arrays were grown on Ti foil substrate using a 20 V/-4 V pulse sequence in NH4F electrolyte in neat water or glycerol containing 1% water. The pulse anodization approach yielded superior nanotube morphology and photocurrent response (in Na2SO4 supporting electrolyte) relative to samples grown via the conventional, continuous anodization method. Further, the results from this study provide crucial supporting evidence for mechanistic models of anodic growth and self-assembly of oxide nanotube arrays on the parent metal surface. Specifically, adsorption of NH4+ species on the nanoarchitecture by the electrolyte F- species, resulting in better nanotube morphology. (c) 2007 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据