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For TiO2 nanotubes with 22-nm pore diameter and 34-nm wall thickness (Figure 80A), upon 320-400 nm illumination at an intensity of 100 mW/cm2, hydrogen gas was generated at the power-time normalized rate of 960 mmol/h W (24 mL/h W) at an overall conversion efficiency of 6.8% as shown in Figure 80B. The length and diameter of the TiO2 nanotubes could be controlled over a wide range (diameter, 15-120 nm; length, 20 nm to 10 µm) with the applied potential between 1 and 25 V in optimized phosphate/HF electrolytes. They also claimed that, for illumination at 320-400 nm (98 mW/cm2), the TiO2 nanotube-array photoanodes could generate H2 by H2O photoelectrolysis with a photoconversion efficiency of 12.25%。 when doped with carbon, TiO2-xCx nanotube arrays showed more efficient water splitting under UV and visible light illumination (>420 nm) than pure TiO2 nanotube arrays。 請(qǐng)問(wèn)這幾句話怎么翻譯 ![]() ![]() |
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在波長(zhǎng)320-400nm 、強(qiáng)度100 mW/cm2下照射TiO2納米管(孔徑22nm和壁厚34nm)(如圖80A),產(chǎn)生氫氣,能量 - 時(shí)間歸一化速率為960 mmol/h W(24 mL/h W),總光電轉(zhuǎn)換效率為6.8%(如圖80B)。 在優(yōu)化后的磷酸鹽/ HF電解液中施加電位1-25 V,二氧化鈦納米管的長(zhǎng)度和直徑可控制在一定范圍內(nèi)(直徑:15-120納米;長(zhǎng)度:20納米至10微米)。 他們還報(bào)道,在波長(zhǎng)320-400nm、強(qiáng)度98 mW/cm2照射下,TiO2納米管陣列的光電陽(yáng)極能通過(guò)光電解水產(chǎn)生氫氣,光電轉(zhuǎn)換效率為12.25%。 加入碳的TiO2-XCX納米管陣列表現(xiàn)出在紫外光和可見(jiàn)光照射下(>420nm)比純的二氧化鈦納米管陣列有更高的分解水制氫效率。 |
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