Heterodoped nanotubes:: Theory, synthesis, and characterization of phosphorus-nitrogen doped multiwalled carbon nanotubes

被引：148

作者：

Cruz-Silva, Eduardo ^{[1
]}

Cullen, David A. ^{[2
,3
]}

Gu, Lin ^{[2
,3
]}

Romo-Herrera, Jose Manuel ^{[1
]}

Munoz-Sandoval, Emilio ^{[1
]}

Lopez-Urias, Florentino ^{[1
]}

Sumpter, Bobby G. ^{[4
]}

Meunier, Vincent

Charlier, Jean-Christophe ^{[5
]}

Smith, David J. ^{[2
,3
]}

Terrones, Humberto ^{[1
]}

Terrones, Mauricio ^{[1
]}

机构：

[1] IPICyT, Adv Mat Dept, San Luis Potosi 78216, Mexico

[2] Arizona State Univ, Sch Mat, Tempe, AZ 85287 USA

[3] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

[4] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[5] Catholic Univ Louvain, PCPM & ETSF, B-1348 Louvain, Belgium

来源：

ACS NANO | 2008年 / 2卷 / 03期

关键词：

multiwalled carbon nanotubes; chemical vapor deposition; doping; electronic structure;

D O I：

10.1021/nn700330w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Arrays of multiwalled carbon nanotubes doped with phosphorus (P) and nitrogen (N) are synthesized using a solution of ferrocene, triphenyl-phosphine, and benzylamine in conjunction with spray pyrolysis. We demonstrate that iron phosphide (Fe3P) nanoparticles act as catalysts during nanotube growth, leading to the formation of novel PN-doped multiwalled carbon nanotubes. The samples were examined by high resolution electron microscopy and microanalysis techniques, and their chemical stability was explored by means of thermogravimetric analysis in the presence of oxygen. The PN-doped structures reveal important morphology and chemical changes when compared to N-doped nanotubes. These types of heterodoped nanotubes are predicted to offer many new opportunities, in the fabrication of fast-response chemical sensors.

引用

页码：441 / 448

页数：8

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