School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
ACS Nano. 2012 Jan 24;6(1):118-25. doi: 10.1021/nn202979y. Epub 2011 Dec 21.
Metal nanowires show promise in a broad range of applications, but many synthesis techniques require complex methodologies. We have developed a method for depositing patterned aluminum nanowires (Al NWs) onto Cu, Ni, and stainless steel substrates using low-pressure decomposition of trimethylamine alane complex. The NWs exhibited an average diameter in the range from 45 to 85 nm, were crystalline, and did not contain a detectable amount of carbon impurities. Atomic layer deposition of 50 nm of vanadium oxide on the surface of Al NW allows fabrication of supercapacitor electrodes with volumetric capacitance in excess of 1400 F·cc(-3), which exceeds the capacitance of traditional activated carbon supercapacitor electrodes by more than an order of magnitude.
金属纳米线在广泛的应用中显示出巨大的潜力，但许多合成技术需要复杂的方法。我们已经开发出一种使用三甲基铝烷络合物在低压下分解的方法，在 Cu、Ni 和不锈钢基底上沉积图案化的铝纳米线（Al NWs）。这些 NWs 的平均直径在 45 至 85nm 范围内，是结晶的，并且没有检测到任何碳杂质。在 Al NW 表面进行 50nm 的原子层沉积五氧化二钒，可以制造出具有超过 1400F·cc(-3)体积电容的超级电容器电极，其电容超过传统活性炭超级电容器电极一个数量级以上。
