Effect of the surface configuration on the oxidation of bismuth nanowire

C. C. Huang, Kuan-Zong Fung

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Incorporating nanoprocessing into the metal oxidation, it was a facile way to synthesize functional oxide with desired nanostructure. In this work, δ-Bi2O3 nanowires were successfully fabricated by the oxidation of electroplated Bi nanowires at 350 °C. δ-Bi2O3 is the high-temperature phase of Bi2O3 and only stable at 723-823 °C. Partially oxidized nanowires showed core-shell structure composed of metallic Bi and δ-Bi2O3. To investigate the mechanism of oxidation reaction, the Bi/Bi2O3 interface was characterized by high resolution transmission electron microscopy (HRTEM). HRTEM images showed rapid growth of oxide layer on (2 over(1, ̄) 0) plane of rhombohedral Bi metal. The coherency between (10 over(2, ̄)) of metallic Bi and (1 0 0) of cubic Bi2O3 was observed. A schematic model was also used to describe the oxidation process. The coherency Bi and Bi2O3 and the stabilization of high-temperature (fluorite structure) Bi2O3 were also discussed based on this model.

Original languageEnglish
Pages (from-to)1604-1611
Number of pages8
JournalMaterials Research Bulletin
Volume41
Issue number9
DOIs
Publication statusPublished - 2006 Sep 14

Fingerprint

Bismuth
bismuth
Nanowires
nanowires
Oxidation
oxidation
High resolution transmission electron microscopy
configurations
Oxides
Metals
transmission electron microscopy
oxides
Fluorspar
high resolution
circuit diagrams
Schematic diagrams
fluorite
metals
Nanostructures
Stabilization

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "Incorporating nanoprocessing into the metal oxidation, it was a facile way to synthesize functional oxide with desired nanostructure. In this work, δ-Bi2O3 nanowires were successfully fabricated by the oxidation of electroplated Bi nanowires at 350 °C. δ-Bi2O3 is the high-temperature phase of Bi2O3 and only stable at 723-823 °C. Partially oxidized nanowires showed core-shell structure composed of metallic Bi and δ-Bi2O3. To investigate the mechanism of oxidation reaction, the Bi/Bi2O3 interface was characterized by high resolution transmission electron microscopy (HRTEM). HRTEM images showed rapid growth of oxide layer on (2 over(1, ̄) 0) plane of rhombohedral Bi metal. The coherency between (10 over(2, ̄)) of metallic Bi and (1 0 0) of cubic Bi2O3 was observed. A schematic model was also used to describe the oxidation process. The coherency Bi and Bi2O3 and the stabilization of high-temperature (fluorite structure) Bi2O3 were also discussed based on this model.",
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Effect of the surface configuration on the oxidation of bismuth nanowire. / Huang, C. C.; Fung, Kuan-Zong.

In: Materials Research Bulletin, Vol. 41, No. 9, 14.09.2006, p. 1604-1611.

Research output: Contribution to journalArticle

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AU - Huang, C. C.

AU - Fung, Kuan-Zong

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AB - Incorporating nanoprocessing into the metal oxidation, it was a facile way to synthesize functional oxide with desired nanostructure. In this work, δ-Bi2O3 nanowires were successfully fabricated by the oxidation of electroplated Bi nanowires at 350 °C. δ-Bi2O3 is the high-temperature phase of Bi2O3 and only stable at 723-823 °C. Partially oxidized nanowires showed core-shell structure composed of metallic Bi and δ-Bi2O3. To investigate the mechanism of oxidation reaction, the Bi/Bi2O3 interface was characterized by high resolution transmission electron microscopy (HRTEM). HRTEM images showed rapid growth of oxide layer on (2 over(1, ̄) 0) plane of rhombohedral Bi metal. The coherency between (10 over(2, ̄)) of metallic Bi and (1 0 0) of cubic Bi2O3 was observed. A schematic model was also used to describe the oxidation process. The coherency Bi and Bi2O3 and the stabilization of high-temperature (fluorite structure) Bi2O3 were also discussed based on this model.

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