NIMTE OpenIR  > 2017专题
Thin WS2 nanotubes from W18O49 nanowires
Chen, Youhu; Li, Yunpeng; Wang, Yuanfei; Tian, Tian; Qin, Lu-Chang
AbstractSingle-and double-walled WS2 nanotubes of small diameter (<10 nm) and few layers (<4) have been synthesized by heating ultrathin W18O49 nanowires and S powders in an H-2/Ar atmosphere at 840 degrees C. In the process of formation and growth of a WS2 nanotube, the W18O49 phase transformed first into an amorphous WS3 structure via the absorption and diffusion of the sulfur atoms to substitute the oxygen atoms, and followed by a phase transition from amorphous WS3 to 2H-WS2 by losing sulfur atoms to form the shell of the WS2 nanotube. [GRAPHICS] IMPACT STATEMENT Synthesis of thin WS2 nanotubes with single- and doubled-walled structure from ultrathin W18O49 nanowires is developed and their structure and growth are studied using electron diffraction and microscopy.
KeywordScanning Probe Microscopy Fluidized-bed Reactor Tungsten Disulfide Electron-diffraction Growth-mechanism Carbon Hydrodesulfurization Tips
Subject AreaChemistry ; Materials Science
Document Type期刊论文
Recommended Citation
GB/T 7714
Chen, Youhu,Li, Yunpeng,Wang, Yuanfei,et al. Thin WS2 nanotubes from W18O49 nanowires[J]. MATERIALS RESEARCH LETTERS,2017,5(7):508-515.
APA Chen, Youhu,Li, Yunpeng,Wang, Yuanfei,Tian, Tian,&Qin, Lu-Chang.(2017).Thin WS2 nanotubes from W18O49 nanowires.MATERIALS RESEARCH LETTERS,5(7),508-515.
MLA Chen, Youhu,et al."Thin WS2 nanotubes from W18O49 nanowires".MATERIALS RESEARCH LETTERS 5.7(2017):508-515.
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