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aishangshi

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[交流] 求助翻译段落（英译汉，化学相关）

Titanium-oxide nanotube arrays in the form of films on the surface of titanium have been synthesized by anodization of titanium metal foil in HF-free aqueous solutions. An asprepared ATO film is amorphous; however, it becomes anatase with maintained nanotube array morphology after being annealed at 500 ℃ in an argon atmosphere. At 800℃ ，a pure rutile crystalline phase can be obtained, but with the loss of nanotube array morphology. Application of UV light produced a significant increase in the measured photocurrent values for both the anatase and the rutile films. Anatase films showed the highest increase in photocurrent generation. The interaction between the TiO2 nanotubes at the anode and the incident UV light was confirmed by the color change of the electrode. Anatase films showed the highest efficiency of all the tested materials, about 5.9%. Rutile films showed a maximum value of 3.8%. These results demonstrate that one can use light to generate photocurrent and produce hydrogen by water splitting .

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1楼 2009-06-14 11:04:18

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monitor2885

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aishangshi(金币+5,VIP+0):谢谢 6-15 00:06

在没有HF的水溶液中，通过阳极氧化的方法在钛金属薄片表面合成了二氧化钛纳米管薄膜。制备的ATO薄膜是非结晶态的，但是在氩气保护500度焙烧下得到了锐钛矿纳米管阵列。800度焙烧时，可以得到金红石相，但是纳米管阵列被破坏。锐钛矿和金红石相的TiO2在紫外光下都可以显著产生光电流。锐钛矿薄膜产生了最大的光电流增长值。阳极TiO2纳米管和入射UV光之间的相互作用可以由电极颜色的变化而证实。在所有测试膜中，锐钛矿膜显示了最高的效率，大约是5.9%。金红石相最大效率是3.8%。这些结果表明可以用光来分解水产生光电流和氢气。