Polyyne synthesis and amorphous carbon nano-particle formation by femtosecond irradiation of benzene
Polyyne synthesis and amorphous carbon nano-particle formation by femtosecond irradiation of benzene
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苯飞秒辐照合成多炔和形成无定形碳纳米粒子
DOI：
10.1016/j.carbon.2010.10.008
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发表时间：
2011
期刊：
影响因子：
10.9
通讯作者：
W. Duley
中科院分区：
文献类型：
--
作者：
M. Wesolowski;S. Kuzmin;B. Moores;B. Wales;R. Karimi;A. Zaidi;Z. Leonenko;J. Sanderson;W. Duley
当液体苯受到强度≈1×1014Wcm−2 的 120fs 脉冲照射时，会形成一系列碳纳米粒子和多炔链。报告了这些纳米粒子的形态和组成。原子力显微镜 (AFM) 显示辐照结果形成尺寸在 1 至 50 nm 之间的球形、椭圆形和环形纳米颗粒。表面增强拉曼光谱 (SERS) 表明这些颗粒的成分主要是由具有 8-14 个碳原子的聚炔链增强的无定形碳。飞行时间质谱 (TOF-MS) 已用于测定苯照射中产生的前体分子，并显示了开环反应在颗粒形成中的重要性。提出了一种简单的化学机制来解释辐照苯中多炔链的出现。
A range of carbon nanoparticles together with polyyne chains are formed when liquid benzene is irradiated with 120fs pulses of intensity≈1×1014Wcm−2. The morphology and composition of these nanoparticles are reported. Atomic force microscopy (AFM) shows irradiation result in the formation of spherical, ellipsoidal and toroidal nanoparticles with sizes between 1 and 50nm. Surface enhanced Raman spectroscopy (SERS) indicates that the composition of these particles is primarily amorphous carbon reinforced by polyyne chains with 8–14 carbon atoms. Time of flight mass spectroscopy (TOF-MS) has been used to determine the precursor molecules created in the irradiation of benzene and shows the importance of ring-opening reactions in particle formation. A simple chemical mechanism is proposed to explain the appearance of polyyne chains in irradiated benzene.
通过强飞秒激光脉冲照射从己烷合成聚炔分子
DOI：
--
发表时间：
2010
期刊：
CARBON 48
影响因子：
--
作者：
Y. Sato;T. Kodama;H. Shiromaru;J.H. Sanderson;T. Fujino;Y. Wada;T. Wakabayashi;Y. Achiba
通讯作者：
Y. Achiba