BROWSE

Related Researcher

Author

Baik, Jeong Min
Nano Energy and Environmental Materials Lab
Research Interests
  • Nanogenerators, antimicrobial material, catalysis, smart sensors

ITEM VIEW & DOWNLOAD

TiO2 Nanowire Growth Driven by Phosphorus-Doped Nanocatalysis

Cited 20 times inthomson ciCited 19 times inthomson ci
Title
TiO2 Nanowire Growth Driven by Phosphorus-Doped Nanocatalysis
Author
Kim, Myung HwaBaik, Jeong MinZhang, JinpingLarson, ChristopherLi, YouliStucky, Galen D.Moskovits, MartinWodtke, Alec M.
Keywords
Active catalyst; Catalyst system; Elemental analysis; Growing surfaces; High resolution; Liquid layer; Nanocatalysis; Nanowire growth; Phosphorus-doped; Precursor adsorption; Rutile TiO; TEM; TiO
Issue Date
201006
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY C, v.114, no.24, pp.10697 - 10702
Abstract
Ni-catalyzed single-crystal TiO2 nanowire growth was observed to occur well below the bulk Ni melting point when a small amount of P was present. TEM, SAED, EDXS, and EELS analyses as well as consideration of the Ni/P phase diagram point to a previously unreported mechanism of nanowire growth catalyzed by a liquid Ni/P eutectic shell surrounding a solid Ni core. High-resolution elemental analysis supports the conclusion that the active catalyst is the outer liquid Ni/P layer with P present at a 3-8% level surrounding a solid Ni core. Growth proceeds by precursor adsorption onto the liquid layer followed by diffusion to the growing surface of the nanowire. This catalyst system produces rutile TiO2 nanowires efficiently. We believe that the technique is generalizable to other metal/dopant systems which could lead to the synthesis of other hard-to-synthesize nanowires.
URI
Go to Link
DOI
http://dx.doi.org/10.1021/jp1007335
ISSN
1932-7447
Appears in Collections:
MSE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU