Nb-doped WS2 nanotubes

被引：34

作者：

Zhu, YQ

Hsu, WK

Firth, S

Terrones, M

Clark, RJH

Kroto, HW

Walton, DRM ^{[1
]}

机构：

[1] Univ Sussex, CPES, Sch Chem Phys & Environm Sci, Fullerene Sci Ctr, Brighton BN1 9QJ, E Sussex, England

[2] UCL, Christopher Ingold Labs, London WC1H 0AJ, England

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 342卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(01)00534-6

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：

Nb-doped WS2 nanotubes, typically W1-xNbxS2 (x less than or equal to 0.2), generated by heating Nb2O5-coated W18O49 nanorods in H2S at 1100 degreesC, contain more structural defects within the layers than do pure WS2 nanotubes. The tube tips are invariably closed. The presence of Nb appears to inhibit nanotube formation. A two-stage process is proposed to account for the observed doped nanotube growth. (C) 2001 Elsevier Science B.V. All rights reserved.

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页码：15 / 21

页数：7

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