Growth of uniform tungsten oxide nanowires with small diameter via a two-step heating process

Hu, Rong; Wu, Huasheng; Hong, Kunquan

doi:10.1016/j.jcrysgro.2007.05.007

Cited by 34 publications

(15 citation statements)

References 14 publications

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“…Recently, the morphology controlled synthesis of tungsten oxide particles has attracted considerable attention [21][22][23]. One-dimensional (1D) tungsten oxides especially have attracted considerable interest due to their high aspect-ratio structure, large surface areas and unique physical properties, including optical, electronic characteristics and gas sensing effects [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis and characterization of tungsten oxides with controllable morphology and crystal phase

Liu

Dong

Liu

et al. 2011

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis and characterization of tungsten oxides with controllable morphology and crystal phase

Liu

Dong

Liu

et al. 2011

Journal of Alloys and Compounds

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“…With salient electrochromic, optochromic, gaschromic, and catalytic properties, tungsten oxides (WO x ) are of great interest, being promising in applications such as flat panel displays, 'smart windows', semiconductor gas sensors, and photocatalysts [6][7][8][9]. In the past few years, diverse forms of WO x nanowires have been synthesized including monoclinic W 18 O 49 nanowires [10,11], orthorhombic W 3 O 8 nanowires [12], quasi-1D W 5 O 14 crystals [13], two-dimensional tetragonal WO 2.9 nanowire networks [14], monoclinic WO 3 nanowires [11,15], and cubicstructured WO 3 nanowires [16]. However, WO x nanobelts are less observed and studied [17,18], although many other semiconductor oxides were vastly synthesized in nanobelts form such as ZnO, SnO 2 , In 2 O 3 , CdO, Ga 2 O 3 , and PbO 2 [19].…”

Section: Introductionmentioning

confidence: 99%

Tetragonal tungsten oxide nanobelts synthesized by chemical vapor deposition

Lian

et al. 2010

Journal of Crystal Growth

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“…Tungsten oxides are composed of a network of WO 6 octahedra with shared oxygen at the corners. Furthermore they can be composed not only of stoichiometric WO 2 ,28 and WO 3 ,112 but also non‐stoichiometric WO x (2 < x < 3), for example W 2 O 5 ,113 W 18 O 49 ,113–115 W 3 O 8 ,116 W 5 O 14 ,117 and WO 2.9. 118 Tungsten oxides have varying crystalline phases, such as monoclinic, triclinic, orthorhombic, and tetragonal crystals with various transition temperatures 112, 119.…”

Section: 1d Anisotropic Crystalline Nanostructuresmentioning

confidence: 99%

“…The surface area of the 1D tungsten oxides is greatly increased as a consequence of a reduction in their size and dimensionality. Their electrochemical properties can be effectively enhanced, which makes the 1D tungsten oxide nanostructures more suitable for use in electrochromic smart windows,57, 116, 124 catalysts120, 121, gas sensors,125 and batteries 126. In addition, the 1D tungsten‐oxide nanostructures also possess good photoluminescent,127 superparamagnetic29 and thermochromic128 properties, which make them more useful in nanodevices.…”

Section: 1d Anisotropic Crystalline Nanostructuresmentioning

confidence: 99%

One‐Dimensional Metal‐Oxide Nanostructures: Recent Developments in Synthesis, Characterization, and Applications

Devan

Patil

Lin

et al. 2012

Adv Funct Materials

739

396

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1D metal-oxide nanostructures have attracted much attention because metal oxides are the most fascinating functional materials. The 1D morphologies can easily enhance the unique properties of the metal-oxide nanostructures, which make them suitable for a wide variety of applications, including gas sensors, electrochromic devices, light-emitting diodes, fi eld emitters, supercapacitors, nanoelectronics, and nanogenerators. Therefore, much effort has been made to synthesize and characterize 1D metal-oxide nanostructures in the forms of nanorods, nanowires, nanotubes, nanobelts, etc. Various physical and chemical deposition techniques and growth mechanisms are exploited and developed to control the morphology, identical shape, uniform size, perfect crystalline structure, defects, and homogenous stoichiometry of the 1D metal-oxide nanostructures. Here a comprehensive review of recent developments in novel synthesis, exceptional characteristics, and prominent applications of one-dimensional nanostructures of tungsten oxides, molybdenum oxides, tantalum oxides, vanadium oxides, niobium oxides, titanium oxides, nickel oxides, zinc oxides, bismuth oxides, and tin oxides is provided. FEATURE ARTICLEpoint lower but the resistivity higher, so the thermal and chemical stability of the 1D metal-oxide nanostructures may be weakened. In other words, overheating caused by the passage of high currents through the nanodevices or nanoelectronics can easily burn the 1D metal-oxide nanostructures causing them to break. Ideally the 1D metal-oxide nanostructures used for the nanodevices or nanoelectronics are expected to be identical in shape, uniform in size, perfect in crystalline structure, and easy in taking apart, and have no morphological defects and a consistent chemical composition. However, control of the morphology, shape, size, crystalline structure, and chemical composition of the 1D metal-oxide nanostructures remains a challenge in the development of 1D controllable synthesis methods.A number of physical and chemical methods have been use to achieve the goals of identical shape, uniform size, perfect crystals, no defects, and homogenous stoichiometry in the synthesis of ideal 1D metal-oxide nanostructures. In Section 2, we introduce some of the synthesis techniques for the production of various 1D metal-oxide nanostructures, covering the theoretical and experimental aspects of recent developments, such as 1D nanostructure design, processing, modeling, and fabrication. In Section 3, we present several growth mechanisms for the growth of 1D metal-oxide nanostructures. Since such 1D nanostructures possess a highly anisotropic morphology, they preferentially grow along one particular crystalline direction to form the 1D morphology. This anisotropic growth is strongly dominated by internal and external stresses, such as easy-growth lattice-planes and template confi nement, respectively. In Section 4, we provide a comprehensive review of a variety of 1D metal-oxide nanostructures, including tungsten oxides, molybdenum oxides, ta...

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Growth of uniform tungsten oxide nanowires with small diameter via a two-step heating process

Cited by 34 publications

References 14 publications

Solvothermal synthesis and characterization of tungsten oxides with controllable morphology and crystal phase

Solvothermal synthesis and characterization of tungsten oxides with controllable morphology and crystal phase

Tetragonal tungsten oxide nanobelts synthesized by chemical vapor deposition

One‐Dimensional Metal‐Oxide Nanostructures: Recent Developments in Synthesis, Characterization, and Applications

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