XPS研究单壁碳纳米管(SWNTs)上碳与碘形成的共价键  

XPS Study of C-I Covalent Bond on Single-walled Carbon Nanotubes (SWNTs)

作　　者：王海芳[1] 邓小勇[1] 王竞[1] 高兴发[2] 邢更妹[2] 施祖进[1] 顾镇南[1] 刘元方[1] 赵宇亮[2] 

机构地区：[1]北京大学化学与分子工程学院,北京100871 [2]中国科学院高能物理研究所,北京100039

出　　处：《物理化学学报》2004年第7期673-675,共3页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金重大项目和科技部资助项目

摘　　要：采用简单的氯胺-T反应制备了碘化的多羟基单壁碳纳米管(SWNTols),发现碘与SWNTols的碳形成共价键.用同步辐射光电子能谱(SRXPS)和光电子能谱(XPS)测量发现,样品的碘的电子结合能与两个具有C-I共价键的参考物——苯的衍生物,完全一致,而与具有离子性质的NaI的结合能不同.这个结果对单壁碳纳米管今后的生物医学应用研究有实际意义.A simple method was used to synthesize the iodinated multi hydroxylated SWNTs (SWNTols) by the reaction of SWNTols with NaI in the presence of strong oxidant N-chloro-p-toluenesulfonamide. The formation of the C-I covalent bond was verified by comparing the electron binding energies of iodine of I-SWNTols and the reference materials, which were measured with the synchrotron radiation X-ray photoemission spectroscopy (SRXPS) as well as the conventional X-ray photoelectron spectroscopy (XPS). This result will be useful in applications of SWNTs in the biomedical and pharmaceutical sciences.

关 键 词：单壁碳纳米管(SWNTs) 碘 C-I共价键 光电子能谱(XPS) 

分 类 号：O621.15[理学—有机化学]