期刊
SMALL
卷 2, 期 4, 页码 548-553出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.200500382
关键词
bismuth; core-shell materials; nanotubes; nanowires; template synthesis
A template-based heat-treatment method has been developed to convert metal nanowire arrays into arrays of metal-metal oxide core-shell nanowires and single-crystalline metal oxide nanotubes. This process is. demonstrated by kinetically controlling the conversion of single-crystalline Bi nanowires to Bi-Bi2O3 core-shell nanowires via a multistep, slow oxidation method, and then controlling their further conversion to a single-crystalline Bi2O3 nanotube array via fast oxidation. This process can conveniently be extended to fabricate a free-standing, easily oxidized metal-metal oxide nanowire and metal oxide nanotube array, which may have,future applications in nanoscale optics, electronics, and magnetics.
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