Synthesis, Photoluminescence, and Magnetic Properties of Nitrogen-Doping Helical Carbon Nanotubes

被引：37

作者：

Wen, Jianfeng ^{[1
]}

Zhang, Yang ^{[1
]}

Tang, Nujiang ^{[1
]}

Wan, Xiangang ^{[1
]}

Xiong, Zhuhong ^{[2
]}

Zhong, Wei ^{[1
]}

Wang, Zhenlin ^{[1
]}

Wu, Xinglong ^{[1
]}

Du, Youwei ^{[1
]}

机构：

[1] Nanjing Univ, Nanjing Natl Lab Microstruct, Nanjing 210093, Peoples R China

[2] Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 25期

关键词：

LARGE-SCALE SYNTHESIS; ROOM-TEMPERATURE; ULTRAVIOLET EMISSION; CNX NANOTUBES; NANOFIBERS; GRAPHENE; SINGLE; GROWTH; BORON; NANOCOMPOSITES;

D O I：

10.1021/jp202723f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Over Ni nanoparticles generated by means of a combined sol-gel/reduction method, helical carbon nanotubes (HCNTs) were synthesized in acetylene pyrolysis at 425 degrees C. By annealing the pristine HCNTs in NH3 atmosphere, the N-doped HCNTs were obtained. The dependence of annealing temperature on the nitrogen content and doping type of the N-doped HCNTs was studied. The photoluminescence (PL) properties of the pristine HCNTs and N-doped HCNTs were examined systematically at room temperature (RT). The results demonstrated that the pristine HCNTs exhibit strong ultraviolet (UV) PL at 368 nm. By doping the pyridinic and graphitic N into the pristine HCNTs, the UV PL could be enhanced. Moreover, the magnetic properties of the pristine and N-doped HCNTs have been measured.

引用

页码：12329 / 12334

页数：6

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