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首页> 外文期刊>Applied Surface Science >Adsorption behaviors of V2O5 nanowires on binary mixed self-assembled monolayers
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Adsorption behaviors of V2O5 nanowires on binary mixed self-assembled monolayers

机译：V2O5纳米线在二元混合自组装单分子膜上的吸附行为

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摘要

The adsorption behaviors of V2O5 nanowires on binary mixed self-assembled monolayers (SAMS) were investigated with variation of the mixing ratio of two differently terminated thiolates on Au. Hydroxyl-covered V2O5 nanowires showed a preferential adsorption on amine (NH2)terminated thiolates over methyl (CH3)-terminated ones. However, on the binary mixed SAM of NH2- and CH3-terminated thiols, the adsorption behavior did not follow a simple expectation based upon the electrostatic interaction. The total number of adsorbed V2O5 nanowires increased with the mote fraction of NH2-terminated thiolates UP to X-NH2 similar to 0.5, then it decreased with further increase of X-NH2,. The height distribution of adsorbed nanowires showed that the relative portion of the agglomerated wires thicker than 3.5 nm to individual wires thinner than 3.5 nm increased up to X-NH2 similar to 0.75 and then it decreased with further increase of X-NH2. The dispersion of molecules with polar-functional groups as well as the molecular ordering of mixed SAMS is attributed to such adsorption behaviors of V2O5 nanowires. (c) 2006 Elsevier B.V. All rights reserved.
机译：研究了V2O5纳米线在二元混合自组装单分子膜（SAMS）上的吸附行为，考察了两种不同封端的硫醇盐在金上的混合比例。羟基覆盖的V2O5纳米线在胺（NH2）端基的硫醇盐上比在甲基（CH3）端基上的优先吸附。但是，在NH2-和CH3封端的硫醇的二元混合SAM上，基于静电相互作用，吸附行为并未遵循简单的预期。 V2O5纳米线的吸附总数随着NH2端基硫醇盐UP到X-NH2的微粒分数的增加（与0.5相似）而增加，然后随着X-NH2的进一步增加而减少。吸附的纳米线的高度分布表明，厚度大于3.5 nm的团聚线与厚度小于3.5 nm的单个线的相对部分直到X-NH2都增加到0.75，然后随着X-NH2的进一步增加而减小。具有极性官能团的分子的分散以及混合SAMS的分子有序性归因于V2O5纳米线的这种吸附行为。 （c）2006 Elsevier B.V.保留所有权利。

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