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A Hydrogel of Ultrathin Pure Polyaniline Nanofibers: Oxidant-Templating Preparation and Supercapacitor Application

A Hydrogel of Ultrathin Pure Polyaniline Nanofibers: Oxidant-Templating Preparation and Supercapacitor Application

Kun Zhou, Yuan He, Qingchi Xu, Qin'e Zhang, An'an Zhou, Zihao Lu, Li-Kun Yang, Yuan Jiang, Dongtao Ge, Xiang Yang Liu, Hua Bai

ACS Nano. 2018 Jun 26;12(6):5888-5894.

PMID: 29750500

Abstract:

Although challenging, fabrication of porous conducting polymeric materials with excellent electronic properties is crucial for many applications. We developed a fast in situ polymerization approach to pure polyaniline (PANI) hydrogels, with vanadium pentoxide hydrate nanowires as both the oxidant and sacrifice template. A network comprised of ultrathin PANI nanofibers was generated during the in situ polymerization, and the large aspect ratio of these PANI nanofibers allowed the formation of hydrogels at a low solid content of 1.03 wt %. Owing to the ultrathin fibril structure, PANI hydrogels functioning as a supercapacitor electrode display a high specific capacitance of 636 F g-1, a rate capability, and good cycling stability (∼83% capacitance retention after 10,000 cycles). This method was also extended to the preparation of polypyrrole and poly(3,4-ethylenedioxythiophene) hydrogels. This template polymerization method represents a rational strategy for design of conducing polymer networks, which can be readily integrated in high-performance devices or a further platform for functional composites.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
LS73111	Poly(3,4-ethylenedioxythiophene) hydrate			Price

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