Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.
Nanoscale. 2013 Jul 7;5(13):6040-7. doi: 10.1039/c3nr01606d. Epub 2013 May 29.
Due to the chemical stability and easy fabrication by atomic layer deposition (ALD), TiO2 nanotubes are regarded highly useful in constructing branched nanostructured electrodes for solar conversion and electrochemical energy storage devices. Here we present a facile and scalable fabrication of metal oxide nanobranches on ALD pre-formed TiO2 nanotubes. The metal oxide branches can be a wide range (nearly any) of desirable materials, including NiO and Co3O4 demonstrated herein. As an example, the TiO2/NiO nanoarray battery cathode exhibits a relatively high gravimetric capacity value of ~153 mA h g(-1) and a fairly good stability up to 12,000 cycles with a capacitance of 132 mA h g(-1) at 2 A g(-1).
由于化学稳定性和通过原子层沉积（ALD）易于制造，TiO2 纳米管在构建用于太阳能转换和电化学储能装置的分支纳米结构电极方面非常有用。在这里，我们提出了一种在 ALD 预先形成的 TiO2 纳米管上制造金属氧化物纳米分支的简便且可扩展的方法。金属氧化物分支可以是广泛的（几乎任何）所需材料，包括在此处展示的 NiO 和 Co3O4。例如，TiO2/NiO 纳米阵列电池阴极表现出相对较高的比容量值约为 153 mA h g(-1)，并且在 2 A g(-1)下具有 132 mA h g(-1)的电容时，稳定性相当好，可达 12000 次循环。
