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Conductive polymer

About: Conductive polymer is a research topic. Over the lifetime, 21817 publications have been published within this topic receiving 692491 citations. The topic is also known as: intrinsically conducting polymer & ICP.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a coaxial ternary hybrid material comprising of amorphous Ni(OH)2 deposited on multiwalled carbon nanotubes wrapped with conductive polymer (poly (3,4-ethylenedioxythiophene)-poly(styrenesulfonate)) is demonstrated.
Abstract: The utilization of Ni(OH)2 as a pseudocapacitive material for high performance supercapacitors is hindered by its low electrical conductivity and short cycle life. A coaxial ternary hybrid material comprising of amorphous Ni(OH)2 deposited on multiwalled carbon nanotubes wrapped with conductive polymer (poly (3,4-ethylenedioxythiophene)-poly(styrenesulfonate)) is demonstrated. A thin layer of disordered amorphous Ni(OH)2 is deposited by an effective “coordinating etching and precipitating” method, resulting in an ultrahigh specific capacitance of 3262 F g−1 at 5 mV s−1 and excellent rate capability (71.9% capacitance retention at 100 mV s−1). More importantly, the polymer layer prevents the degradation of the nanostructure and dis­solution of Ni ion during repeated charge–discharge cycling for 30 000 cycles, a phenomenon which often plagues Ni(OH)2 nanomaterials. Using the ternary Ni(OH)2 hybrid and the reduced graphene oxide/carbon nanotube hybrid as the positive and negative electrodes, respectively, the assembled asymmetric supercapacitors exhibit high energy density of 58.5 W h kg−1 at the power density of 780 W kg−1 as well as long cycle life (86% capacitance retention after 30 000 cycles). The ternary hybrid architecture design for amorphous Ni(OH)2 can be regarded as a general approach to obtain pseudocapacitive materials for supercapacitors with both high energy density, excellent rate capability, and long cycle life.

284 citations

Book
01 Jan 2009
TL;DR: The third edition of the Intelligent Polymer Systems as mentioned in this paper provides an in-depth understanding of how to engineer dynamic properties in inherently conducting polymers from the molecular level and demonstrates how the control of these properties enables cutting-edge applications in nano, biomedicine, and MEMS as well as sensors and artificial muscles.
Abstract: Rapid advances in synthetic polymer science and nanotechnology have revealed new avenues of development in conductive electroactive polymers that take greater advantage of this versatile class of materials' unique properties. This third edition of Conductive Electroactive Polymers: Intelligent Polymer Systems continues to provide an in-depth understanding of how to engineer dynamic properties in inherently conducting polymers from the molecular level. New to the third edition: * Biomedical, MEMS, and electronic textile applications * The synthesis and fabrication of nanocomponents and nanostructures * The energy role of nanotechnology in improving the performance of conducting materials in devices * Electrochemical Raman, electrochemical ESR, and scanning vibrating reference electrode studies After establishing the basic principles of polymer chemistry, the book pinpoints the dynamic properties of the more useful conducting polymers, such as polupyrroles, polythiophenes, and polyanilines. It then demonstrates how the control of these properties enables cutting-edge applications in nano, biomedicine, and MEMS as well as sensors and artificial muscles. Subsequent chapters discuss the effect of nanodimensional control on the resultant properties. Updated to reflect substantial developments and advances that have occurred in the past few years, this third edition of Conductive Electroactive Polymers unlocks a world of potential for integrating and interfacing conductive polymers.

283 citations

Journal ArticleDOI
TL;DR: In this paper, the performance of a polyaniline (PANI) based supercapacitor where electroactive PANI films were prepared on carbon paper electrodes from a nonaqueous solution with an organic acid (CF 3 COOH) as the proton source was investigated.
Abstract: In this study, the performance of a polyaniline (PANI) based supercapacitor where electroactive PANI films were prepared on carbon paper electrodes from a nonaqueous solution with an organic acid (CF 3 COOH) as the proton source was investigated. The use of nonaqueous media as electrolyte led to an increase of the electroactivity window from 0.75 V in aqueous media up to 1.0 V. Low frequency capacitance, evaluated by electrochemical impedance spectroscopy, of about 150 F/g is reported. Scanning electron microscopy indicated a highly porous material for deposited charges greater than 1 C/cm 2 . Constant current charge/discharge cycling of a symmetric supercapacitor based on PANI in nonaqueous medium was performed in a two-electrode cell configuration and a loss of about 60% of the discharge capacity was demonstrated after 1000 cycles. Tetramethylammonium methanesulfonate (Me 4 NCF 3 SO 3 ) was also used instead of tetraethylammonium tetrafluoborate (Et 1 NBF 4 ) as supporting electrolyte in acetonitrile for the charge/discharge testing of the PANI-PANI capacitor. Energy and power densities of approximately 3.5 Wh/kg and 1300 W/kg, respectively, were developed by this supercapacitor for a cell voltage of I V and a discharge time of 20 s. On the other hand, an asymmetrical supercapacitor with polypyrrole and polyaniline used as positive and negative electrodes, respectively, displayed slightly improved performance. Indeed, an energy density of 5 Wh/kg and a power density of 1200 W/kg were reported for discharge time of about 20 s with 1 M Me 4 NCF 3 SO 3 /acetonitrile as electrolyte.

283 citations

Journal ArticleDOI
01 Mar 1998-Polymer
TL;DR: In this article, the structure, doping, conductivity and thermal stability of reduced polyaniline (PANI-R) were studied by elemental analysis, FT-i.r., solid-state 13C-NMR, XPS and TGA.

283 citations

Journal ArticleDOI
TL;DR: Electrochemically synthesized composites comprising heparin and the electrically conducting polymer polypyrrole had a shelf life of at least 2 years postautoclaving and were found to be excellent substrates for the growth of human endothelial cells.
Abstract: Heparin is a potent anticoagulant which can be immobilized on biomaterial surfaces to increase their hemocompatability. In the present work, we have electrochemically synthesized composites comprising heparin and the electrically conducting polymer polypyrrole. The incorporation and exposure of heparin were controlled by varying key conditions of polymer synthesis (i.e., applied current and synthesis time). The resulting composite polymers were electroactive after synthesis and the amount of heparin exposed in the polymer could be increased (up to threefold) by switching the polymers from their oxidized to reduced states. Polymer reduction was achieved by either application of negative potentials (-0.4 to -0.7 V for 90 s) or exposure to aqueous reductant (0.1M sodium dithionite for 30 min). Heparin-polypyrrole composites remained stable after autoclaving, displaying no significant loss of electroactivity, and had a shelf life of at least 2 years postautoclaving. Finally, the composites were found to be excellent substrates for the growth of human endothelial cells.

282 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023347
2022701
2021738
2020845
2019942
2018934