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李文奕,张王刚,刘一鸣,刘佳孟,郭飞,王红霞.择优取向对氢化TiO2纳米管阵列电化学性能的影响[J].稀有金属材料与工程(英文),2020,49(5):1643~1649.[李文奕,Zhang Wanggang,Liu Yiming,Liu Jiameng,Guo Fei and Wang Hongxia.The effect of preferred orientation on the electrochemical performance of hydrogenated TiO2 nanotube arrays[J].Rare Metal Materials and Engineering,2020,49(5):1643~1649.]
The effect of preferred orientation on the electrochemical performance of hydrogenated TiO2 nanotube arrays
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Received:March 05, 2019  Revised:March 21, 2019
DOI:
Key words: Hydrgenation  TiO2 nanotube arrays  <001> preferred orientation  electrochemical performance
Foundation item:山西省自然科学基金资助(201801D221140, 201801D121099),山西省人才专项(优秀人才科技创新)(201705D2011007),山西省科学仪器设备共享服务平台项目(201805D141005)
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李文奕,Zhang Wanggang,Liu Yiming,Liu Jiameng,Guo Fei and Wang Hongxia  
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Abstract:
      Hydrogenated TiO2 nanotube arrays exhibit good electrochemical performance, which can be further improved by constructing anatase <001> preferred orientation structure within TiO2 nanotube arrays. The anatase TiO2 nanotube arrays with different degrees of <001> orientation via adjusting the Glycol-H2O ratio in anodization process and the subsequent annealing atmosphere. After electrochemical hydrogenation, the as-prepared samples with different degrees of <001> orientation were characterized by SEM, XPS, XRD, TEM and electrochemical measurements, the effects of preparation process on <001> orientated structure was investigated. The mechanism of the enhanced electrochemical properties by orientated structure orientation was discussed. The hydrogenated TiO2 nanotube arrays with highly <001> orientation delivered the charge specific capacitance as high as 17.31 mF·cm-2, which can attribute to the synergetic effects of hydrogenation and <001> oriented structure.