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首页> 外文期刊>Materials Science and Engineering >Biophotofuel cell anode containing self-organized titanium dioxide nanotube array
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Biophotofuel cell anode containing self-organized titanium dioxide nanotube array

机译：包含自组织二氧化钛纳米管阵列的生物光燃料电池阳极

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摘要

We made a biophotofuel cell consisting of a titanium dioxide nanotube array photosensitive anode for biomass decomposition, and a low-hydrogen overpotential metal, Pt, as the cathode for hydrogen production. The titanium dioxide nanotubes (TiO2 NTs) were prepared via electrochemical oxidation of pure Ti in NaF solutions. Scanning electron microscopy was used to analyze the morphology of the nanotubes. The average diameter, wall thickness and length of the as-prepared TiO2 NTs were 88 ± 16 nm, 10 ± 2 nm and 491 ± 56 nm, respectively. Such dimensions are affected by the NaF concentration and the applied voltage during processing. Higher NaF concentrations result in the formation of longer and thicker nanotubes. The higher the voltage is, the thicker the nanotubes. The photosensitive anode made from the highly ordered TiO2 NTs has good photo-catalytic property, as can be seen from the test results of ethanol, apple vinegar, sugar and tissue paper decomposition under ultraviolet (UV) radiation. It is concluded that the biophotofuel cell with the TiO2 nanotube photoanode and a Pt cathode can generate electricity, hydrogen and clean water depending on the pH value and the oxygen presence in the solutions.
机译：我们制造了一种生物光燃料电池，该电池由用于生物质分解的二氧化钛纳米管阵列光敏阳极和作为制氢阴极的低氢超电势金属Pt组成。通过在NaF溶液中对纯Ti进行电化学氧化来制备二氧化钛纳米管（TiO2 NTs）。扫描电子显微镜用于分析纳米管的形态。所制备的TiO 2 NT的平均直径，壁厚和长度分别为88±16nm，10±2nm和491±56nm。这样的尺寸受NaF浓度和加工期间施加的电压的影响。较高的NaF浓度导致形成更长，更厚的纳米管。电压越高，纳米管越厚。由乙醇，苹果醋，糖和薄纸在紫外线（UV）分解下的测试结果可以看出，由高度有序的TiO2 NTs制成的光敏阳极具有良好的光催化性能。结论是，具有TiO2纳米管光阳极和Pt阴极的生物光燃料电池可以根据溶液中的pH值和氧气的存在产生电，氢和清洁水。

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