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Issue 8, 2014
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Preparation of a macroscopic, robust carbon-fiber monolith from filamentous fungi and its application in Li–S batteries

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Abstract

A new sustainable microorganism-based route is reported for the synthesis of carbon-fiber monolith through using filamentous fungi as feedstock. The fungi are cultured in solution within three days with biomass as nutrient, and fungi concentration reaches as high as 11 mg mL−1 on an average. Based on the rational control of fungi filtration and drying, fungi membrane or aerogel was obtained. Through pyrolysis in an inert atmosphere, intact carbon-fiber monolith (membrane or aerogel) was formed and its conductivity was more than 1 S cm−1. The carbon-fiber aerogel and membrane synthesized at 800 °C was doped by N (∼2.4 at%) and O (∼1.3 at%) and displayed a BET surface area of ∼305 and ∼20 m2 g−1, respectively. Mesopores and macropores were detected in the carbon materials. The carbon-fiber monolith showed promising capability to improve the cyclability and capacity of lithium–sulphur (Li–S) batteries, and are expected to be used as versatile electrode in energy storage.

Graphical abstract: Preparation of a macroscopic, robust carbon-fiber monolith from filamentous fungi and its application in Li–S batteries

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Publication details

The article was received on 29 Apr 2014, accepted on 10 Jun 2014 and first published on 13 Jun 2014


Article type: Paper
DOI: 10.1039/C4GC00761A
Citation: Green Chem., 2014,16, 3926-3934

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    Preparation of a macroscopic, robust carbon-fiber monolith from filamentous fungi and its application in Li–S batteries

    L. Zhang, Y. Wang, B. Peng, W. Yu, H. Wang, T. Wang, B. Deng, L. Chai, K. Zhang and J. Wang, Green Chem., 2014, 16, 3926
    DOI: 10.1039/C4GC00761A

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