Electrospinning highly aligned long polymer nanofibers on large scale by using a tip collector

Rafique, Javed; Yu, Jie; Yu, Jianxin; Fang, Gang; Wong, K. W.; Zheng, Zhanying; Ong, H. C.; Lau, Woei-Jye

doi:10.1063/1.2768871

Cited by 47 publications

(45 citation statements)

References 14 publications

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“…For example, electrospinning with a tip collector, 167 template-guided growth, 168,169 colloidal lithography or nanosphere lithography, 170,171 and superlattice nanowire pattern transfer process, 172 etc. The template-guided growth proposed by Martin 168,169 is an effective technique to synthesize arrays of aligned metal, semiconductor, and polymer micro-/nanotubes and wires with controllable length and diameter.…”

Section: Other Approachesmentioning

confidence: 99%

Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics

et al. 2012

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Semiconducting inorganic nanowires (NWs), nanotubes and nanofibers have been extensively explored in recent years as potential building blocks for nanoscale electronics, optoelectronics, chemical/biological/ optical sensing, and energy harvesting, storage and conversion, etc. Besides the top-down approaches such as conventional lithography technologies, nanowires are commonly grown by the bottom-up approaches such as solution growth, template-guided synthesis, and vapor-liquid-solid process at a relatively low cost. Superior performance has been demonstrated using nanowires devices. However, most of the nanowire devices are limited to the demonstration of single devices, an initial step toward nanoelectronic circuits, not adequate for production on a large scale at low cost. Controlled and uniform assembly of nanowires with high scalability is still one of the major bottleneck challenges towards the materials and device integration for electronics. In this review, we aim to present recent progress toward nanowire device assembly technologies, including flow-assisted alignment, Langmuir-Blodgett assembly, bubble-blown technique, electric/magnetic-field-directed assembly, contact/roll printing, planar growth, bridging method, and electrospinning, etc. And their applications in high-performance, flexible electronics, sensors, photovoltaics, bioelectronic interfaces and nano-resonators are also presented.

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Section: Other Approachesmentioning

confidence: 99%

Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics

et al. 2012

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“…Once a single fibre was formed as described above, the next fibre was repelled by the formerly deposited fibre when it approached the collector and landed towards the support plate, as a result of which the next fibre arranged itself in parallel to the former one. The detailed results on the set up and production mechanism of the aligned nanofibres have been published elsewhere (Rafique et al 2007).…”

Section: Methodsmentioning

confidence: 99%

“…The aligned precursor nanofibres were electrospun from PAN solution by using a newly developed electrospinning set up (Rafique et al 2007). Figure 1 shows a schematic of the modified electrospinning set up.…”

Section: Methodsmentioning

confidence: 99%

Fabrication of ultra thin and aligned carbon nanofibres from electrospun polyacrylonitrile nanofibres

Rafique

Zha

et al. 2010

Bull Mater Sci

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Ultra thin and aligned carbon nanofibres (CNFs) have been fabricated by heat treatment from aligned polyacrylonitrile (PAN) nanofibre precursors prepared by electrospinning. The alignment of the precursor nanofibres was achieved by using a modified electrospinning set up developed recently, where a tip collector was used to collect and align the nanofibres. The average diameter of the aligned CNFs is about 80 nm. The stabilization and carbonization behaviour were studied mainly based on the randomly oriented PAN nanofibres. The effects of stabilization and carbonization temperatures, temperature-increasing rates, and with and without substrates on the morphology and structure of the CNFs were investigated. Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, transmission electron microscopy and Raman spectroscopy were used to characterize the structure of the CNFs and thermogravimetric/ differential temperature analysis was used to evaluate the thermal behaviour of PAN nanofibres.

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“…Many methods have been used to prepare WO 3 nanomaterials, including physical vapor deposition [19], sol-gel [20], template casting [16], laser pyrolysis [21,22], and electrospinning [23][24][25]. Among the numerous methods, electrospinning, a technique capable of preparing polymer-based continuous nanofibers, has prominent advantages of simplicity, scalability, versatility, and low cost [26,27]. Many inorganic continuous nanofibers such as oxides [28][29][30][31], nitrides [32], and carbides [33] have been prepared using the electrospun nanofibers as precursors and subsequent calcination treatment.…”

Section: Introductionmentioning

confidence: 99%

High electrochemical activity from hybrid materials of electrospun tungsten oxide nanofibers and carbon black

Zhou

Qiu

et al. 2012

J Mater Sci

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Tungsten oxide (WO 3 ) nanofibers were prepared by oxidizing the electrospun ammonium metatungstate (AMT) and polyvinyl pyrrolidone (PVP) composite fibers. The WO 3 nanofibers with controllable diameters ranging from 80 to 130 nm were obtained by electrospinning different AMT/PVP mixture solutions. Electrochemical activity of the WO 3 nanofibers was measured in 0.5 M sulfuric acid solution. Cyclic voltammetry tests show that the WO 3 nanofibers have electrochemical activity which is closely related to hydrogen oxidation in fuel cells and the electrochemical activity could be greatly enhanced by the addition of carbon black. The hybrid materials of the WO 3 nanofibers and carbon black with the WO 3 :C mass ratio of 10:1 possess high electrochemical activity with an anodic peak current density of 11.2 mA/cm 2 , even higher than the commercial 20 wt% Pt/C catalyst. The electrospun WO 3 nanofibers may be promising electrocatalysts or catalyst supports for hydrogen oxidation in fuel cells due to the simplicity in production and high electrochemical activity.

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Electrospinning highly aligned long polymer nanofibers on large scale by using a tip collector

Cited by 47 publications

References 14 publications

Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics

Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics

Fabrication of ultra thin and aligned carbon nanofibres from electrospun polyacrylonitrile nanofibres

High electrochemical activity from hybrid materials of electrospun tungsten oxide nanofibers and carbon black

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