Wang Yong, Lu Liqiang, Wu Fengdan
Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, Shangda Road 99, 200444 Shanghai, People's Republic of China.
Nanoscale Res Lett. 2010 Jul 17;5(10):1682-5. doi: 10.1007/s11671-010-9695-x.
This paper reports two new indium tin oxide (ITO)-based nanostructures, namely ITO@carbon core-shell nanowire and jagged ITO nanowire. The ITO@carbon core-shell nanowires (50 nm in diameter, 1-5 μm in length,) were prepared by a chemical vapor deposition process from commercial ITO nanoparticles. A carbon overlayer (5-10 in thickness) was observed around ITO nanowire core, which was in situ formed by the catalytic decomposition of acetylene gas. This carbon overlayer could be easily removed after calcination in air at an elevated temperature of 700°C, thus forming jagged ITO nanowires (~40-45 nm in diameter). The growth mechanisms of ITO@carbon core-shell nanowire and jagged ITO nanowire were also suggested.
本文报道了两种基于氧化铟锡（ITO）的新型纳米结构，即ITO@碳核壳纳米线和锯齿状ITO纳米线。ITO@碳核壳纳米线（直径约50纳米，长度为1 - 5微米）通过化学气相沉积法由商业ITO纳米颗粒制备而成。在ITO纳米线芯周围观察到一层碳覆盖层（厚度约5 - 10纳米），它是由乙炔气体的催化分解原位形成的。在700°C高温下于空气中煅烧后，该碳覆盖层可轻松去除，从而形成锯齿状ITO纳米线（直径约40 - 45纳米）。文中还提出了ITO@碳核壳纳米线和锯齿状ITO纳米线的生长机制。
