2納米管陣列(H@am-TNAs)。結(jié)果表明,電化學(xué)氫化對TiO2納米管陣列的結(jié)構(gòu)影響不大。經(jīng)過電化學(xué)氫化后,納米管在100 mV·s-1時的比電容為4.05 mF·cm-2,比未氫化的管長和管徑相同的TiO2納米管的比電容大20倍。納米管的比電容不僅與管長有關(guān),還受管徑的影響。通過指數(shù)函數(shù)擬合,納米管的長徑比呈線性關(guān)系。面積電容/長徑比達到0.056,幾乎相當于銳鈦礦相TiO2納米管。陽極化處理后的納米管具有最小的電荷轉(zhuǎn)移阻力和最佳的離子擴散/輸運動力學(xué),具有最高的面積容量。此外,為了研究H@am-TNAs納米管的電化學(xué)性能的潤濕性,相同的H@am-TNAs電極在C-V和C-P測試前,在電解液中浸泡不同時間,結(jié)果表明,比電容隨著浸泡時間的增加而減小。;Hydrogenated amorphous TiO2 nanotube arrays (H@am-TNAs) with different tube diameter, length and wall thickness were prepared through the modified two-step electrochemical anodization and electrochemical hydrogenation method. Results show that the electrochemical hydrogenation has almost no effect on the topology of TiO2 nanotube arrays. After electrochemical hydrogenation, the nanotubes have a specific capacitance of 4.05 mF·cm-2 at 100 mV·s-1 that is 20 times larger than that of the corresponding one without hydrogenation with the same tube length and diameter. The capacitance of the nanotube is not only related to the tube length but also influenced by tube diameter. The aspect ratio of the nanotubes shows a linear relationship if fitted by an exponential function. The areal capacitance/aspect ratio reaches 0.056, which is almost equivalent to that of the anatase phase TiO2 nanotubes. The nanotubes anodized for 2 h own the smallest charge transfer resistance, the best ion diffusion/transportation kinetics, and the highest areal capacity. Furthermore, to study the wettability in the electrochemical properties of the H@am-TNAs, the same H@am-TNAs electrode was soaked in the electrolyte for different hours before C-V and C-P testing, and the results show that the capacitance decreases with increasing the soaking time."/>

最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
網(wǎng)刊加載中。。。

使用Chrome瀏覽器效果最佳,繼續(xù)瀏覽,你可能不會看到最佳的展示效果,

確定繼續(xù)瀏覽么?

復(fù)制成功,請在其他瀏覽器進行閱讀