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magicpopo

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zwb_123500

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3Â¥2012-07-19 16:50:40
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magicpopo

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http://www.pnas.org/content/109/ ... 6-a2a3-9bae44845090
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Abstract£º
Conducting polymer hydrogels represent a unique class of materials
that synergizes the advantageous features of hydrogels and
organic conductors and have been used in many applications such
as bioelectronics and energy storage devices. They are often synthesized
by polymerizing conductive polymer monomer within a
nonconducting hydrogel matrix, resulting in deterioration of their
electrical properties. Here, we report a scalable and versatile synthesis
of multifunctional polyaniline (PAni) hydrogel with excellent
electronic conductivity and electrochemical properties. With high
surface area and three-dimensional porous nanostructures, the PAni
hydrogels demonstrated potential as high-performance supercapacitor
electrodes with high specific capacitance (∼480 F¡¤g−1), unprecedented
rate capability, and cycling stability (∼83% capacitance
retention after 10,000 cycles). The PAni hydrogels can also function
as the active component of glucose oxidase sensors with fast
response time (∼0.3 s) and superior sensitivity (∼16.7 ¦ÌA¡¤mM−1).
The scalable synthesis and excellent electrode performance of the
PAni hydrogel make it an attractive candidate for bioelectronics
and future-generation energy storage electrodes.
4Â¥2012-07-19 19:05:04
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Rainycc

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