Polyaniline coated graphene hybridized SnO2 nanocomposite: Low temperature solution synthesis, structural property and room temperature ammonia gas sensing

Abstract An inorganic-organic hybrid of SnO2-reduced graphene oxide (rGO)-polyaniline (SGP) nanocomposite has been successfully synthesized from surfactant-free precursor by a low temperature solution process. The SGP nanocomposite is found to form from in situ synthesized SnO2-rGO (SG) and polyaniline (PANI), generated via polymerization of aniline monomer at 5–10 °C. The structural properties of SGP have been analyzed by X-ray diffraction, transmission electron and atomic force microscopes. The chemical interaction existed in the nanocomposite has been examined by X-ray photoelectron, Fourier transform infrared and Raman spectroscopies. Compare to pristine SnO2 and SG, the SGP sample shows an enhanced ammonia gas sensing at room temperature. At an optimum content of PANI, high sensitivity, fast response and good selectivity of the gas sensing are observed in the nanocomposite. This enhanced sensing performance can be attributed to well-defined p-n hetero junction formation in the hybridized polyaniline and rGO with nano SnO2 in SGP as confirmed from structural characterization of the sample. It is also seen that the presence of PANI layers in SGP, enhances the chemical stability as reflected from the observation of negligible decrease in the sensing performance of sample up to 30 days period. This facile process can create an avenue for development of various metal oxide semiconductor-graphene-polyaniline nanocomposites for improving room temperature stable ammonia gas sensor.

[1]  S. Bhansali,et al.  Organic-inorganic hybrid nanocomposite-based gas sensors for environmental monitoring. , 2015, Chemical reviews.

[2]  J. H. Lee,et al.  Enhanced ethanol sensing characteristics of In2O3-decorated NiO hollow nanostructures via modulation of hole accumulation layers. , 2014, ACS applied materials & interfaces.

[3]  Zheng Yan,et al.  Graphene nanoribbon and nanostructured SnO2 composite anodes for lithium ion batteries. , 2013, ACS nano.

[4]  Weiqi Wang,et al.  Synergic effect within n-type inorganic–p-type organic nano-hybrids in gas sensors , 2013 .

[5]  Peixia Yang,et al.  Superior cycle performance and high reversible capacity of SnO2/graphene composite as an anode material for lithium-ion batteries , 2015, Scientific Reports.

[6]  M. Pal,et al.  Low temperature synthesis of graphene hybridized surface defective hierarchical core–shell structured ZnO hollow microspheres with long-term stable and enhanced photoelectrochemical activity , 2016 .

[7]  Nicola Donato,et al.  Room-temperature hydrogen sensing with heteronanostructures based on reduced graphene oxide and tin oxide. , 2012, Angewandte Chemie.

[8]  P. Dutta,et al.  Selective detection of part per billion concentrations of ammonia using a p–n semiconducting oxide heterostructure , 2016 .

[9]  M. Pal,et al.  Low-temperature surfactant-free synthesis of tin oxide-reduced graphene oxide nanocomposites and their textural property-dependent lithium storage characteristics , 2015, Journal of Sol-Gel Science and Technology.

[10]  Kirk J. Ziegler,et al.  Selective desorption of high-purity (6,5) SWCNTs from hydrogels through surfactant modulation. , 2016, Chemical communications.

[11]  L. Ocola,et al.  Ultrafast room temperature NH3 sensing with positively gated reduced graphene oxide field-effect transistors. , 2011, Chemical communications.

[12]  Wolfgang Göpel,et al.  SnO2 sensors: current status and future prospects☆ , 1995 .

[13]  Zhi Yang,et al.  Reduced graphene oxide–polyaniline hybrid: Preparation, characterization and its applications for ammonia gas sensing , 2012 .

[14]  J. Zavickis,et al.  Ethanol monitoring by ZnFe2O4 thin film obtained by spray pyrolysis , 2013 .

[15]  Zhiyu Wang,et al.  Dually fixed SnO2 nanoparticles on graphene nanosheets by polyaniline coating for superior lithium storage. , 2015, ACS applied materials & interfaces.

[16]  I. Biswas,et al.  Polyaniline hybridized surface defective ZnO nanorods with long-term stable photoelectrochemical activity , 2016 .

[17]  Zhi Yang,et al.  Gas sensor based on p-phenylenediamine reduced graphene oxide , 2012 .

[18]  G. Lu,et al.  Double-Shell Architectures of ZnFe2O4 Nanosheets on ZnO Hollow Spheres for High-Performance Gas Sensors. , 2015, ACS applied materials & interfaces.

[19]  M. Pal,et al.  Synthesis, characterization and cytotoxicity of europium incorporated ZnO–graphene nanocomposites on human MCF7 breast cancer cells , 2014 .

[20]  Richard B. Kaner,et al.  Polyaniline Nanofiber Gas Sensors: Examination of Response Mechanisms , 2004 .

[21]  Himadri Sekhar Maiti,et al.  The effect of palladium incorporation on methane sensitivity of antimony doped tin dioxide , 2003 .

[22]  M. Pal,et al.  ZnO–graphene–polyaniline nanoflowers: solution synthesis, formation mechanism and electrochemical activity , 2016 .

[23]  Justin G. Clar,et al.  Strongly Bound Sodium Dodecyl Sulfate Surrounding Single-Wall Carbon Nanotubes. , 2017, Langmuir : the ACS journal of surfaces and colloids.

[24]  S. S. Kim,et al.  Extraordinary improvement of gas-sensing performances in SnO2 nanofibers due to creation of local p-n heterojunctions by loading reduced graphene oxide nanosheets. , 2015, ACS applied materials & interfaces.

[25]  M. Pal,et al.  Sol–gel based simonkolleite nanopetals with SnO2 nanoparticles in graphite-like amorphous carbon as an efficient and reusable photocatalyst , 2015 .

[26]  S. G. Ansari,et al.  Grain size effects on H2 gas sensitivity of thick film resistor using SnO2 nanoparticles , 1997 .

[27]  Hae-Won Cheong,et al.  Sensing characteristics and surface reaction mechanism of alcohol sensors based on doped SnO 2 , 2006 .

[28]  Markus Niederberger,et al.  Nonaqueous sol-gel routes to metal oxide nanoparticles. , 2007, Accounts of chemical research.

[29]  Jitae Kim,et al.  Studies on tin oxide-intercalated polyaniline nanocomposite for ammonia gas sensing applications , 2009 .

[30]  Sofian M. Kanan,et al.  Semiconducting Metal Oxide Based Sensors for Selective Gas Pollutant Detection , 2009, Sensors.

[31]  Ying Wang,et al.  Ultrafast and sensitive room temperature NH3 gas sensors based on chemically reduced graphene oxide , 2014, Nanotechnology.

[32]  S. Kundu,et al.  Synthesis, characterization and low concentration ethanol sensing performance of sol–gel derived La(III) doped tin oxide , 2015, Journal of Materials Science: Materials in Electronics.

[33]  Shimin Liu,et al.  Crystallinity and morphology-controlled synthesis of SnO2 nanoparticles for higher gas sensitivity , 2013 .

[34]  Sunghoon Park,et al.  Synthesis, Structure, and Ethanol Gas Sensing Properties of In2O3 Nanorods Decorated with Bi2O3 Nanoparticles. , 2015, ACS applied materials & interfaces.

[35]  Q. Li,et al.  Enhanced sensitivity and stability of room-temperature NH₃ sensors using core-shell CeO₂ nanoparticles@cross-linked PANI with p-n heterojunctions. , 2014, ACS applied materials & interfaces.

[36]  Gang Sun,et al.  High sensitivity ammonia sensor using a hierarchical polyaniline/poly(ethylene-co-glycidyl methacrylate) nanofibrous composite membrane. , 2013, ACS applied materials & interfaces.

[37]  Yang Li,et al.  Tin oxide/graphene composite fabricated via a hydrothermal method for gas sensors working at room temperature , 2012 .

[38]  Jipeng Cheng,et al.  Nickel-doped tin oxide hollow nanofibers prepared by electrospinning for acetone sensing , 2014 .