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Article: Tungsten oxide nanowires synthesized by a catalyst-free method at low temperature

TitleTungsten oxide nanowires synthesized by a catalyst-free method at low temperature
Authors
Issue Date2006
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/nano
Citation
Nanotechnology, 2006, v. 17 n. 19, p. 4830-4833 How to Cite?
AbstractWe report the synthesis of tungsten oxide W 18O 49 nanowires by thermal evaporation at low temperature without using catalysts. By placing tungsten powder in the high temperature zone at 650 °C and tungsten substrate in the low temperature zone at 400 °C of a tube furnace, W 18O 49 nanowires with diameters of 10-50nm are produced with high yield. The nanowires extend to 500-1500nm length, and the cross-sectional shapes are circular or polygonal. The roles of the source material, the pre-oxide layer on the substrate and the temperature of the reactor are also investigated. It is shown that the presence of oxygen on the W surface is essential for tungsten oxide nanowire growth. © IOP Publishing Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/80951
ISSN
2015 Impact Factor: 3.573
2015 SCImago Journal Rankings: 1.196
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHong, Ken_HK
dc.contributor.authorXie, Men_HK
dc.contributor.authorWu, Hen_HK
dc.date.accessioned2010-09-06T08:12:05Z-
dc.date.available2010-09-06T08:12:05Z-
dc.date.issued2006en_HK
dc.identifier.citationNanotechnology, 2006, v. 17 n. 19, p. 4830-4833en_HK
dc.identifier.issn0957-4484en_HK
dc.identifier.urihttp://hdl.handle.net/10722/80951-
dc.description.abstractWe report the synthesis of tungsten oxide W 18O 49 nanowires by thermal evaporation at low temperature without using catalysts. By placing tungsten powder in the high temperature zone at 650 °C and tungsten substrate in the low temperature zone at 400 °C of a tube furnace, W 18O 49 nanowires with diameters of 10-50nm are produced with high yield. The nanowires extend to 500-1500nm length, and the cross-sectional shapes are circular or polygonal. The roles of the source material, the pre-oxide layer on the substrate and the temperature of the reactor are also investigated. It is shown that the presence of oxygen on the W surface is essential for tungsten oxide nanowire growth. © IOP Publishing Ltd.en_HK
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/nanoen_HK
dc.relation.ispartofNanotechnologyen_HK
dc.titleTungsten oxide nanowires synthesized by a catalyst-free method at low temperatureen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0957-4484&volume=17&spage=4830&epage=4833&date=2006&atitle=Tungsten+oxide+nanowires+synthesized+by+a+catalyst-free+method+at+low+temperatureen_HK
dc.identifier.emailXie, M: mhxie@hku.hken_HK
dc.identifier.emailWu, H: hswu@hkucc.hku.hken_HK
dc.identifier.authorityXie, M=rp00818en_HK
dc.identifier.authorityWu, H=rp00813en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/0957-4484/17/19/008en_HK
dc.identifier.scopuseid_2-s2.0-33748892460en_HK
dc.identifier.hkuros119729en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33748892460&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume17en_HK
dc.identifier.issue19en_HK
dc.identifier.spage4830en_HK
dc.identifier.epage4833en_HK
dc.identifier.isiWOS:000241671000008-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridHong, K=8657303000en_HK
dc.identifier.scopusauthoridXie, M=7202255416en_HK
dc.identifier.scopusauthoridWu, H=7405584367en_HK
dc.identifier.citeulike847815-

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