One-step synthesis of graphene/polypyrrole nanofiber composites as cathode material for a biocompatible zinc/polymer battery

Sha Li; Kewei Shu; Chen Zhao; Caiyun Wang; Zaiping Guo; Gordon Wallace; Hua Kun Liu

doi:10.1021/am503572w

One-step synthesis of graphene/polypyrrole nanofiber composites as cathode material for a biocompatible zinc/polymer battery

Sha Li, Kewei Shu, Chen Zhao, Caiyun Wang^*, Zaiping Guo, Gordon Wallace, Hua Kun Liu

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

69 Citations (Scopus)

Abstract

The significance of developing implantable, biocompatible, miniature power sources operated in a low current range has become manifest in recent years to meet the demands of the fast-growing market for biomedical microdevices. In this work, we focus on developing high-performance cathode material for biocompatible zinc/polymer batteries utilizing biofluids as electrolyte. Conductive polymers and graphene are generally considered to be biocompatible and suitable for bioengineering applications. To harness the high electrical conductivity of graphene and the redox capability of polypyrrole (PPy), a polypyrrole fiber/graphene composite has been synthesized via a simple one-step route. This composite is highly conductive (141 S cm^-1) and has a large specific surface area (561 m² g^-1). It performs more effectively as the cathode material than pure polypyrrole fibers. The battery constructed with PPy fiber/reduced graphene oxide cathode and Zn anode delivered an energy density of 264 mWh g^-1 in 0.1 M phosphate-buffer saline. © 2014 American Chemical Society.

Original language	English
Pages (from-to)	16679-16686
Journal	ACS Applied Materials and Interfaces
Volume	6
Issue number	19
DOIs	https://doi.org/10.1021/am503572w
Publication status	Published - 8 Oct 2014
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

Funding

The authors acknowledge the Australian Research Council (ARC) for financial support under the ARC Centre of Excellence for Electromaterials Science and the Electron Microscopy Centre at the University of Wollongong for providing the electron microscopy facilities.

Research Keywords

aqueous zinc-air battery
biobattery
polymer cathode
polypyrrole fiber/graphene composite
simulated body fluid

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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One-step synthesis of graphene/polypyrrole nanofiber composites as cathode material for a biocompatible zinc/polymer battery

Abstract

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Research Keywords

UN SDGs

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