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首页> 外文期刊>Chemical Physics Letters >D-2 adsorption in potassium-doped single-wall carbon nanotubes: a neutron diffraction and isotherms study
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D-2 adsorption in potassium-doped single-wall carbon nanotubes: a neutron diffraction and isotherms study

机译：掺钾单壁碳纳米管中D-2的吸附：中子衍射和等温线研究

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Adsorption of deuterium gas in single-wall carbon nanotubes (SWNTs) with closed end, doped with potassium was simultaneously studied by adsorption isotherms and neutron diffraction in the range 18-300 K. Neutron diffraction has shown that doped SWNTs are only slightly intercalated by K ions so that empty cavities are preserved in between the tubes. At room temperature, the chemisorption of deuterium molecules was not observed in doped SWNTs bundles, but only in the KC8 graphite intercalation compound impurities. At low temperature, the isotherms analysis and neutron diffraction experiments have shown that D-2 molecules are physisorbed in doped SWNTs in the free interstitial voids. (C) 2003 Elsevier B.V. All rights reserved. [References: 23]
机译：通过吸附等温线和18-300 K范围内的中子衍射，同时研究了封闭的单壁碳纳米管（SWNT）中的氘气对钾的吸附。中子衍射表明，掺杂的SWNT仅被K稍微嵌入离子，以便在管之间保留空洞。在室温下，在掺杂的SWNTs束中未观察到氘分子的化学吸附，而仅在KC8石墨插层化合物杂质中观察到了。在低温下，等温线分析和中子衍射实验表明，D-2分子被物理吸附在自由间隙空隙中的掺杂SWNT中。 （C）2003 Elsevier B.V.保留所有权利。 [参考：23]

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