Show simple item record

AuthorAyesh, Ahmad I.
AuthorAbu-Hani, Ayah F. S.
AuthorMahmoud, Saleh T.
AuthorHaik, Yousef
Available date2021-09-01T10:02:39Z
Publication Date2016
Publication NameSensors and Actuators, B: Chemical
ResourceScopus
URIhttp://dx.doi.org/10.1016/j.snb.2016.03.078
URIhttp://hdl.handle.net/10576/22335
AbstractWe report on H2S gas sensors based on CuO nanoparticles that are embedded within polymer membranes of poly-vinyl-alcohol (PVA) and glycerol ionic liquid (IL). The nanoparticles were fabricated by the colloid microwave assisted hydrothermal method that enables a precise control of nanoparticle size. Polymer solutions of PVA and 5% IL were prepared with different concentrations of nanoparticles. Next, the solutions were used to fabricate polymer membranes by the solution casting method. The produced membranes were flexible and they hold semiconducting properties. Each membrane was encapsulated between two electrical electrodes where the top and bottom electrodes were made of stainless steel grid and copper sheet, respectively. A constant voltage was applied across the electrodes, and the electrical current response signal was measured. The measurements revealed that those sensors were sensitive to H2S gas with concentrations as low as 10 ppm, and they functioned at low temperatures. In addition, their sensing behavior was reversible which enabled repeatable use of those sensors. Those sensors were also selective to H2S, and they exhibited fast response of 20.4 12.8 s. Moreover, the sensors were easy to manufacture, thus, they have potential to be used for practical field applications.
SponsorThe authors would like to acknowledge the financial support by United Arab Emirates University with project number UPAR-25234 and Qatar University with project number QUSG-CAS-DMSP-14\15-5.
Languageen
PublisherElsevier B.V.
SubjectElectrodes
Ionic liquids
Membranes
Organic polymers
Stainless steel
CuO nanoparticles
Electrical current
Field application
Microwave-assisted hydrothermal
Nanoparticle sizes
Semi-conducting property
Solution-casting method
Stainless steel grids
Nanoparticles
TitleSelective H2S sensor based on CuO nanoparticles embedded in organic membranes
TypeArticle
Pagination593-600
Volume Number231
dc.accessType Abstract Only


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record