螺旋碳纳米管的氟化及其光致发光性能研究  

Synthesis and photoluminescence of F-doping helical carbon nanotube

作　　者：纪来奎 文剑锋[1] 曹雪丽[1] 

机构地区：[1]桂林理工大学理学院,桂林541004

出　　处：《化工新型材料》2016年第4期170-172,共3页New Chemical Materials

基　　金：广西自然科学基金资助项目(2013GXNSFBA019013);广西自然科学基金资助项目(2015GXNSFAA139016);广西高校科研项目(YB2014159);桂林理工大学博士科研启动费(2005026)

摘　　要：利用催化化学气相沉积法,以镍纳米颗粒为催化剂,在550℃条件下催化分解乙炔,制备出高螺旋纯度的螺旋碳纳米管(HCNTs)。再用二氟化氙在220℃将其氟化得到氟化螺旋碳纳米管(F-HCNTs)。利用XPS研究了F-HCNTs中F含量及其与C的结合形式,考察了它们对HCNTs光致发光性能的影响。结果表明:F与C的结合形式主要有离子型和半离子型;F-HCNTs在深紫外区域有较强的光发射;半离子型的F掺杂可以增强F-HCNTs的深紫外光发射。Helical carbon nanotubes（HCNTs）with high purity were synthesized via catalytic chemical vapor decomposition by the pyrolysis of acetylene at 550℃ over Ni nanoparticles.Xenon difluoride was used to fluorinate HCNTs at220℃.The content of F and the doping type were analyzed by XPS,their influence on the photoluminescence properties of HCNTs was also studied.The results demonstrated that F bonding C atoms had ionic or half-ionic form.F-HCNTs showed deep UV photoluminescence and half-ionic F-doping may enhance the emission.

关 键 词：催化化学气相沉积 螺旋碳纳米管 氟掺杂 光致发光 深紫外 

分 类 号：TB383.1[一般工业技术—材料科学与工程] O613.71[理学—无机化学]