2D WS2-edge functionalized multi-channel carbon nanofibers: effect of WS2 edge-abundant structure on room temperature NO2 sensing

Cited 83 time in webofscience Cited 86 time in scopus
  • Hit : 317
  • Download : 0
Transition metal dichalcogenides (TMDs), such as molybdenum disulfide (MoS2) and tungsten disulfide (WS2), have been studied intensively in recent years due to wide range of potential applications. TMD gas sensors have been developed and intensively explored for their promising applications. In recent times, it has been reported that edge sites of TMDs can contribute to highly enhanced gas adsorption properties. Herein, superior room temperature gas sensing properties of WS2 edge functionalized carbon nanofibers (CNFs) with multiple tubular pores (WS2@MTCNFs) have been demonstrated. A copolymer-electrospinning route, which uses poly(styrene-acrylonitrile) as sacrificial templates and WS2 precursor containing poly(acrylonitrile) as carbon matrix, offered facile synthesis of CNFs having high gas permeability with single-layered WS2 edge-rich surface. As a result, WS2@MTCNFs based sensors exhibited notable gas response (15% at 1 ppm of NO2) at room temperature compared to pristine CNFs (2% at 1 ppm of NO2), which can be attributed to the synergistic effects that originated from enhanced surface area and open porosity with numerous elongated pore channels of MTCNFs as well as remarkably increased active spots on the surface from WS2 edge sites.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2017-05
Language
English
Article Type
Article
Keywords

HYDROGEN EVOLUTION REACTION; GAS SENSORS; RATIONAL DESIGN; EXHALED BREATH; WO3 NANOFIBERS; SINGLE LAYERS; THIN-FILM; MOS2; PERFORMANCE; ELECTROCATALYSTS

Citation

JOURNAL OF MATERIALS CHEMISTRY A, v.5, no.18, pp.8725 - 8732

ISSN
2050-7488
DOI
10.1039/c6ta11019c
URI
http://hdl.handle.net/10203/223904
Appears in Collection
MS-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 83 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0