Printed hydrogen sulfide gas sensor on paper substrate based on polyaniline composite

Abstract The fabrication of a hydrogen sulfide (H 2 S) sensor based on polyaniline (PANI)-metal salt (CuCl 2 ) composite is demonstrated. The sensing film was produced by screen printing and spray coating of the sensing material on interdigitated silver electrodes inkjet-printed on a paper substrate. The H 2 S sensing functionality with respect to pH and metal salt concentration was optimized. In addition, the long term stability and humidity effects on the sensor performance were investigated. The printed chemiresistors showed more than five orders of magnitude change in resistance within 20 min of exposure of 15 ppm H 2 S at room temperature. The relatively fast kinetics and large response of the sensor can be explained by the formation of Cu 2 S and subsequent protonation of PANI. In addition, the relatively large roughness and porosity of the paper substrate offers an increased surface sensing area.

[1]  S. Radhakrishnan,et al.  Conducting Polymers Functionalized with Phthalocyanine as Nitrogen Dioxide Sensors , 2002 .

[2]  D. Hercules,et al.  Surface spectroscopic characterization of Cu/Al2O3 catalysts , 1985 .

[3]  Xiliang Luo,et al.  Enhancement of a conducting polymer-based biosensor using carbon nanotube-doped polyaniline. , 2006, Analytica chimica acta.

[4]  R. Kaner,et al.  Polyaniline nanofibers: a unique polymer nanostructure for versatile applications. , 2009, Accounts of chemical research.

[5]  Andrew P. Monkman,et al.  Polyaniline thin films for gas sensing , 1995 .

[6]  G. Inzelt,et al.  Some problems connected with the study and evaluation of the effect of pH and electrolyte concentration on the behaviour of polyaniline film electrodes , 1990 .

[7]  Fabienne Poncin-Epaillard,et al.  Polyaniline as a new sensitive layer for gas sensors , 2003 .

[8]  Bonn,et al.  Viscous fingering in a yield stress fluid , 2000, Physical review letters.

[9]  P. Sheng,et al.  Hopping Conductivity in Granular Metals , 1973 .

[10]  Benjamin Abeles,et al.  Percolation Conductivity in W-Al 2 O 3 Granular Metal Films , 1975 .

[11]  Anuvat Sirivat,et al.  Electrical conductivity of polyaniline/zeolite composites and synergetic interaction with CO , 2005 .

[12]  Vahid Mottaghitalab,et al.  The influence of carbon nanotubes on mechanical and electrical properties of polyaniline fibers , 2005 .

[13]  D. Hercules,et al.  Decomposition of Copper Compounds in X-Ray Photoelectron Spectrometers , 1984 .

[14]  Karl Crowley,et al.  An aqueous ammonia sensor based on an inkjet-printed polyaniline nanoparticle-modified electrode. , 2008, The Analyst.

[15]  B. H. Weiller,et al.  Nanostructured polyaniline sensors. , 2004, Chemistry.

[16]  Kristberg Kristbergsson,et al.  Characterization of volatile compounds in chilled cod (Gadus morhua) fillets by gas chromatography and detection of quality indicators by an electronic nose. , 2005, Journal of agricultural and food chemistry.

[17]  M. Orazem,et al.  Effect of cations on the diffusivity of the charge carriers in polyaniline membranes , 1999 .

[18]  P. Rannou,et al.  Poly(aniline) doped with 5-formyl-2-furansulfonic acid: A humidity memory , 2010 .

[19]  Martti Toivakka,et al.  A multilayer coated fiber-based substrate suitable for printed functionality , 2009 .

[20]  Jianfeng Jia,et al.  Electrospun Cu-doped ZnO nanofibers for H2S sensing , 2011 .

[21]  N. Kuramoto,et al.  Aqueous polyaniline suspensions: Chemical oxidative polymerization of dodecylbenzene-sulfonic acid aniline salt , 1997 .

[22]  Gordon G Wallace,et al.  Fabrication of Polyaniline-Based Gas Sensors Using Piezoelectric Inkjet and Screen Printing for the Detection of Hydrogen Sulfide , 2010, IEEE Sensors Journal.

[23]  J. Kankare,et al.  Multilayer films by spraying on spinning surface — Best of both worlds , 2012 .

[24]  Ronald Österbacka,et al.  Low-Cost Hydrogen Sulfide Gas Sensor on Paper Substrates: Fabrication and Demonstration , 2012 .

[25]  Mang Wang,et al.  Preparation of water soluble poly(aniline) and its gas-sensitivity , 2005 .

[26]  M. S. Hegde,et al.  Depth profile composition studies of thin film CdS:Cu2S solar cells using XPS and AES , 1981 .

[27]  Anjali A. Athawale,et al.  Chloroform vapour sensor based on copper/polyaniline nanocomposite , 2002 .

[28]  B. H. Weiller,et al.  Polyaniline nanofiber composites with metal salts: chemical sensors for hydrogen sulfide. , 2005, Small.

[29]  Gordon G Wallace,et al.  Inkjet printable polyaniline nanoformulations. , 2007, Langmuir : the ACS journal of surfaces and colloids.

[30]  Gordon G. Wallace,et al.  Fabrication of an ammonia gas sensor using inkjet-printed polyaniline nanoparticles , 2008 .