Highly enhanced response and selectivity of electrospun ZnO-doped SnO2 sensors to ethanol and CO in presence of CH4

Nikan, Ehsan; Khodadadi, Abbas Ali; Mortazavi, Yadollah

doi:10.1016/j.snb.2013.04.089

Cited by 54 publications

(21 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To monitor the air pollution, attempts have been made to develop a variety of gas sensor using optical fibers, conducting polymers, potentiometric electrodes, infrared devices and metal oxides [5][6][7][8][9]. Among these methods, gas sensors which rely on the metal oxide semiconductor nanomaterials such as SnO 2 , WO 3 , TiO 2 , Fe 2 O 3 , In 2 O 3 and ZnO, have attracted considerable attention due to their high sensitivity, low cost and processing reliability [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Er-doped ZnO nanofibers for high sensibility detection of ethanol

Sun

Zhao

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Er-doped ZnO nanofibers for high sensibility detection of ethanol

Sun

Zhao

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

“…43,44 These results revealed the considerable advantages of core-shell hollow nanospheres, which could be potentially useful in gas detection. 43,44 These results revealed the considerable advantages of core-shell hollow nanospheres, which could be potentially useful in gas detection.…”

Section: Gas Sensing Mechanism Of Sno 2 @Zno Ccnsmentioning

confidence: 84%

The synthesis and fast ethanol sensing properties of core–shell SnO₂@ZnO composite nanospheres using carbon spheres as templates

et al. 2016

View full text Add to dashboard Cite

Core-shell SnO 2 @ZnO composite nanospheres were successfully prepared by using carbon spheres as sacrificial templates via a facile three-step procedure including a hydrothermal method. In contrast, pristine SnO 2 nanospheres and ZnO nanoparticles were obtained through a similar method with different steps, respectively. The composition and structures of the as-synthesized samples were confirmed by a series of characterization procedures. The obtained composite materials exhibited the special core-inhollow-shell structure at the nanometer level. And as potential sensing materials, the obtained coreshell SnO 2 @ZnO composite nanomaterials demonstrated better gas sensing properties to ethanol including higher response, better selectivity, faster response and favorable repeatability, which may be related to the special core-in-hollow-shell structure with a porous surface and the hetero-contact between two different metal oxide semiconductors.

show abstract

“…The enhanced ethanol sensitivity in La doped SnO 2 sensor compared to the undoped SnO 2 can be explained taking into account the chemical decomposition of C 2 H 5 OH. Investigations of various oxides for ethanol oxidation [44][45][46] reveal that ethanol can be oxidized via two routes i.e. dehydration and dehydrogenation as follows (Eqs.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, characterization and low concentration ethanol sensing performance of sol–gel derived La(III) doped tin oxide

Kundu

Choudhury

Mursalin

et al. 2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Nanocrystalline undoped and lanthanum(III) doped (2, 4 and 6 at%) tin oxide powders were synthesized using sol-gel processing from their water based precursor sols. Microstructures and surface morphologies of all powders were characterized using X-ray diffractometer, BET surface area, UV-Visible spectrophotometer, scanning and transmission electron microscope along with energy dispersive X-ray diffractometer. XRD and UV-Vis spectral analyses revealed decrease of tin oxide crystallite size on La(III) doping. 4 at% La(III) doped powder showed *5 nm average particle size and *42 m 2 /g surface area respectively. A systematic comparison study revealed that sensors made from 4 at% La(III) doped SnO 2 powder exhibited optimum ethanol vapor sensing performance at operating temperature, 350°C (response *70 % for 10 ppm ethanol) with excellent response and recovery times. Even for very low concentration ethanol vapour (1 ppm) response observed was *53 %. A possible mechanism for enhancing sensitivity on La(III) doping has been discussed.

show abstract

Highly enhanced response and selectivity of electrospun ZnO-doped SnO2 sensors to ethanol and CO in presence of CH4

Cited by 54 publications

References 34 publications

Er-doped ZnO nanofibers for high sensibility detection of ethanol

Er-doped ZnO nanofibers for high sensibility detection of ethanol

The synthesis and fast ethanol sensing properties of core–shell SnO₂@ZnO composite nanospheres using carbon spheres as templates

Synthesis, characterization and low concentration ethanol sensing performance of sol–gel derived La(III) doped tin oxide

Contact Info

Product

Resources

About

Highly enhanced response and selectivity of electrospun ZnO-doped SnO2 sensors to ethanol and CO in presence of CH4

Cited by 54 publications

References 34 publications

Er-doped ZnO nanofibers for high sensibility detection of ethanol

Er-doped ZnO nanofibers for high sensibility detection of ethanol

The synthesis and fast ethanol sensing properties of core–shell SnO2@ZnO composite nanospheres using carbon spheres as templates

Synthesis, characterization and low concentration ethanol sensing performance of sol–gel derived La(III) doped tin oxide

Contact Info

Product

Resources

About

The synthesis and fast ethanol sensing properties of core–shell SnO₂@ZnO composite nanospheres using carbon spheres as templates