2納米管陣列;分解水;制氫;氧化電壓;氧化時(shí)間。"/> 2納米管陣列薄膜。采用FESEM表征TiO2納米管的表面、斷面形貌,探討氧化時(shí)間及氧化電壓對(duì)納米管生長速率的影響。以電化學(xué)方法測(cè)試TiO2納米管的光電化學(xué)性能,無外加電壓下雙室光電化學(xué)池中的產(chǎn)氫量考察其光催化活性。結(jié)果表明,相比延長氧化時(shí)間,提高氧化電壓更容易獲得高長徑比的TiO2納米管陣列,同時(shí)可顯著提高TiO2納米管的光電流、光電轉(zhuǎn)換效率及產(chǎn)氫量。"/>

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氧化參數(shù)對(duì)TiO2納米管結(jié)構(gòu)及雙室光電化學(xué)池產(chǎn)氫性能的影響
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成都大學(xué)機(jī)械工程學(xué)院,四川大學(xué)化工學(xué)院

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四川省教育廳項(xiàng)目(項(xiàng)目號(hào)16ZB0423)


Influence of Anodization Parameters on the Structure of TiO2 Nanotubes and Hydrogen Production in a Two-compartment Photoelectrochemical Cell
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School of Mechanical Engineering,Chengdu University,

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    摘要:

    乙二醇電解液中,在不同氧化電壓、氧化時(shí)間條件下通過陽極氧化純鈦片制備了一系列TiO2納米管陣列薄膜。采用FESEM表征TiO2納米管的表面、斷面形貌,探討氧化時(shí)間及氧化電壓對(duì)納米管生長速率的影響。以電化學(xué)方法測(cè)試TiO2納米管的光電化學(xué)性能,無外加電壓下雙室光電化學(xué)池中的產(chǎn)氫量考察其光催化活性。結(jié)果表明,相比延長氧化時(shí)間,提高氧化電壓更容易獲得高長徑比的TiO2納米管陣列,同時(shí)可顯著提高TiO2納米管的光電流、光電轉(zhuǎn)換效率及產(chǎn)氫量。

    Abstract:

    A seriesSof TiO2 nanotube array thin films were prepared by anodic oxidation pure titanium foils under different anodization voltages and anodization times in ethylene glycol electrolyte. The surface and fracture morphology of TiO2 nanotube samples were characterized by FESEM, which was used to investigate the influence of anodization voltage and anodization time on the growth rate of TiO2 nanotubes. Photoelectrochemical properties of the TiO2 nanotubes were measured by electrochemical method. The photocatalytic activity of TiO2 nanotubes was evaluated by hydrogen production in the two-compartment photoelectrochemical cell without any external applied voltage. The results indicated that comparing to prolonging anodization time, increasing anodization voltage was more effective to obtain TiO2 nanotube arrays withShigh aspect ratio. Consequently, the photocurrent response, photoconversion efficiency and hydrogen production of TiO2 nanotube arrays were improved remarkably.

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孫艷,閆康平.氧化參數(shù)對(duì)TiO2納米管結(jié)構(gòu)及雙室光電化學(xué)池產(chǎn)氫性能的影響[J].稀有金屬材料與工程,2017,46(6):1644~1649.[SUN Yan, YAN Kang-Ping. Influence of Anodization Parameters on the Structure of TiO2 Nanotubes and Hydrogen Production in a Two-compartment Photoelectrochemical Cell[J]. Rare Metal Materials and Engineering,2017,46(6):1644~1649.]
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  • 收稿日期:2016-04-27
  • 最后修改日期:2016-09-12
  • 錄用日期:2016-10-18
  • 在線發(fā)布日期: 2017-11-07
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