Obvious temperature difference along a pb cluster-decorated carbon nanowire.

Obvious temperature difference along a pb cluster-decorated carbon nanowire.
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沿 Pb 簇装饰的碳纳米线的明显温差

DOI:
10.1007/s11671-009-9455-y
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发表时间:
2009-10-10
影响因子:
--
通讯作者:
Wang G
Wang G
中科院分区:
材料科学3区
文献类型:
--
作者:
Song F;He L;Han M;Wan J;Wang G

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将铅纳米团簇沉积在悬浮碳纳米线上,利用透射电子显微镜进行了原位变温观察。加热温度高达450 °C。当与支撑框架上的颗粒相比时,在CNW上的Pb纳米颗粒的熔化和蒸发都被延迟。结果表明,在小于1 μm的碳纳米管中,沿着存在明显的温差,温差可达10 K。通过计算,认为这是由于装饰铅颗粒的表面积对辐照耗散的依赖性。(See补充材料1)
Pb nanoclusters were deposited onto a suspended carbon nanowire (CNW), where in situ temperature variable observation was carried out by a transmission electron microscope. The heating temperature was up to 450 °C. Both the melting and evaporation of the Pb nanoparticles on the CNW were retarded when compared to the particles on the support frame. The obvious temperature difference of up to 10 K along the CNW of less than 1 μm was demonstrated. It was attributed to the irradiating dissipation-dependent on the surface area of the decorating Pb particle by calculation.(See supplementary material 1)
DOI: 10.1103/physrevlett.93.095504
发表时间: 2004-08-27
影响因子: 8.6
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