Inkjet printable polyaniline-gold dispersions

Inkjet printable polyaniline-gold (PANI-Au) hybrid dispersions were synthesised using gold salt as oxidant to simultaneously induce chemical oxidative polymerisation of aniline and reduction of HAuCl4 in bulk aqueous solution. By varying the amount of HAuCl4 used for the polymerisation, the size, morphology and population of the resulting gold particles embedded within the polymer were controllable. It was shown however, that the metallic gold particles contained within the resulting dispersions did not appear to affect the bulk conductivity of PANI, but rather that by varying the amount of HAuCl4 used, both the quality and printability of the resulting PANI-Au dispersion could be affected. PANI-Au synthesised using a ratio of 1:0.25 aniline:HAuCl4 was shown to be optimum as it resulted in dispersions with high polymer conjugation lengths and doping levels, as well as high conductivity and well-defined electrochemistry. This hybrid material was shown to be highly processable, and inkjet printing of this material was demonstrated on flexible substrate which resulted in high quality, printed films.

[1]  Balasubramanian Viswanathan,et al.  Synthesis and Characterization of Metal Nanoparticle Embedded Conducting Polymer–Polyoxometalate Composites , 2007, Nanoscale Research Letters.

[2]  T. Wen,et al.  Site-selective deposition of ultra-fine Au nanoparticles on polyaniline nanofibers for H2O2 sensing , 2010 .

[3]  P. Nair,et al.  Development of electromagnetic shielding materials from the conductive blends of polyaniline and polyaniline-clay nanocomposite-EVA: Preparation and properties , 2009 .

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

[5]  Jayanta K. Baral,et al.  Electrochemical fabrication of a nonvolatile memory device based on polyaniline and gold particles , 2008 .

[6]  A. Killard,et al.  Physical Characterizations of a Screen‐Printed Electrode for Use in an Amperometric Biosensor System , 2001 .

[7]  Z. Stojek,et al.  Metal ion-driven synthesis of polyaniline composite doped with metallic nanocrystals at the boundary of two immiscible liquids , 2010 .

[8]  Massimo F. Bertino,et al.  One-pot Synthesis of Polyaniline-metal Nanocomposites , 2005 .

[9]  Wolfgang Knoll,et al.  Polyaniline/gold nanoparticle multilayer films: Assembly, properties, and biological applications , 2004 .

[10]  M. Witcomb,et al.  Polymerization of aniline by auric acid: Formation of gold decorated polyaniline nanoballs , 2005 .

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

[12]  G. Venkatachari,et al.  Corrosion Protection Mechanism of Polyaniline Blended Organic Coating on Steel , 2009 .

[13]  Yang Yang,et al.  Polyaniline nanofiber/gold nanoparticle nonvolatile memory. , 2005, Nano letters.

[14]  K. Neoh,et al.  Spontaneous and sustained gold reduction by polyaniline in acid solution , 1993 .

[15]  Gordon G. Wallace,et al.  The fabrication and characterization of inkjet-printed polyaniline nanoparticle films , 2008 .

[16]  T. Kubo,et al.  Polymer-based monolithic columns in capillary format tailored by using controlled in situ polymerization. , 2009, Journal of separation science.

[17]  C. Soeller,et al.  Self‐Assembled Hollow Polyaniline/Au Nanospheres Obtained by a One‐Step Synthesis , 2008 .

[18]  M. Witcomb,et al.  In-situ chemical synthesis route for a fiber shaped gold-polyaniline nanocomposite , 2008 .

[19]  K. Neoh,et al.  Preparation of Nanosized Metallic Particles in Polyaniline. , 2001, Journal of colloid and interface science.

[20]  Jang-Woo Lee,et al.  A comparative study on roll-to-roll gravure printing on PET and BOPP webs with aqueous ink , 2009 .

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

[22]  Gordon G. Wallace,et al.  An Amperometric Enzyme Biosensor Fabricated from Polyaniline Nanoparticles , 2005 .

[23]  J. Stejskal,et al.  The oxidation of aniline with silver nitrate to polyaniline–silver composites , 2009 .

[24]  Yang Yang,et al.  Charge transfer effect in the polyaniline-gold nanoparticle memory system , 2007 .

[25]  M. Hasik,et al.  Pd/polyaniline as the catalysts for 2‐ethylanthraquinone hydrogenation. The effect of palladium dispersion , 2000 .

[26]  Zhonghua Zhang,et al.  Micelle-assisted one-pot synthesis of water-soluble polyaniline-gold composite particles. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[27]  M. Guerra‒Balcázar,et al.  Synthesis of Au/C and Au/Pani for anode electrodes in glucose microfluidic fuel cell , 2010 .

[28]  Khalil Arshak,et al.  pH Sensitivity of Novel PANI/PVB/PS3 Composite Films , 2007, Sensors.

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

[30]  Dongxue Han,et al.  Tunable activity in electrochemical reduction of oxygen by gold–polyaniline porous nanocomposites , 2010 .