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求助翻译段落(英译汉,化学相关)
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| 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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幽雅百合
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| 通过在HF水溶液中对钛金属薄片进行阳极氧化处理使纯钛表面形成一层氧化钛纳米管阵列。尽管预处理过的氧化锑锡薄膜(ATO)是没有固定形状的,但是经过氩气中500 ℃的退火处理后,它转变成了具有稳定纳米管阵列的锐钛型。经过800 ℃的退火处理后,它转变成了纯的金红石结晶相,但是丢失了纳米管阵列形态。应用紫外光照射能使锐钛型薄膜和金红石型薄膜的光电流测量值都显著增加。其中锐钛型薄膜的光电流增加的最多。阳极的二氧化钛(TiO2)纳米管与紫外光(UV)的相互作用被电极颜色的变化所证实。在所有被测材料中,锐钛型薄膜的效率最高,大约是5.9%。金红石型薄膜最大效率为3.8%。这些结果表明,可以应用光照射产生光电流以及分解水制备氢气 |
8楼2009-06-14 19:36:27
zhaoshans
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3楼2009-06-14 14:58:33
clear8511
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