Liu Shunqiang, Li Yanxing, Xie Mingjiang, Guo Xuefeng, Ji Weijie, Ding Weiping, Chen Yi
Key Laboratory of Mesoscopic Chemistry, MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
J Nanosci Nanotechnol. 2010 Oct;10(10):6725-31. doi: 10.1166/jnn.2010.2551.
Novel hierarchical urchin-like hollow SnO2 nanostructures have been synthesized via a facile one-pot template-free hydrothermal approach. The size and density of the SnO2 prickles as well as the morphology of the SnO2 spheres can be modified by tuning the synthetic parameters such as temperature, time, concentration, as well as pH value. The novel hierarchical nano-sized SnO2 hollow urchins possess enriched prickles with diameters of 5-20 nm and lengths of < 70 nm and high surface area up to 116 m2 g(-1), exhibiting advanced sensing performance to the ethanol vapor due to the special hierarchical nanostructures and being promising for the potential gas sensor material.
通过一种简便的一锅无模板水热法合成了新型分级海胆状空心二氧化锡纳米结构。通过调节温度、时间、浓度以及pH值等合成参数，可以改变二氧化锡刺的尺寸和密度以及二氧化锡球体的形态。这种新型分级纳米尺寸的二氧化锡空心海胆具有直径为5 - 20纳米、长度小于70纳米的丰富刺状结构以及高达116平方米每克的高比表面积，由于其特殊的分级纳米结构，对乙醇蒸汽表现出先进的传感性能，有望成为潜在的气体传感器材料。
