Highly effective metal vapor absorbents based on carbon nanotubes

被引：34
作者：
Liu, ZW [1 ]
Gao, YH [1 ]
Bando, Y [1 ]
机构：
[1] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan
来源：
APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 25期
关键词：
D O I：
10.1063/1.1530740
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
It was shown that, when filled with gallium, carbon nanotubes can absorb copper vapor with extraordinarily high efficiency. The copper vapor generated from the supporting copper grid upon heating to 800 degreesC in an electron microscope under a pressure of 1.0x10(-5) Pa quickly deposited into the carbon nanotubes and formed an alloy with gallium where the vapor pressure is up to 500 times higher (5x10(-3) Pa). These filled carbon nanotubes may be used as highly sensitive toxic or radioactive metal vapor absorbents since gallium also tends to form alloys with metals like mercury and uranium. (C) 2002 American Institute of Physics.
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页码：4844 / 4846
页数：3
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