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Hierarchical carbon microstructures prepared from oil-palm-shell tracheids for Li-S batteries

Abstract

Hierarchical porous hollow carbon microstructure (HPHCM) has been successfully prepared from a cheap and abundant nature resource of oil palm shells, which is a well-known host material of sulfur electrode in Li-S batteries. In the preparation, the hollow tracheids are chemically isolated from oil palm shells, further heat-treated at 400 °C for carbonization and then calcined at 800 °C with KOH/K2CO3 for activation. In Li-S batteries, as-prepared HPHCMs are loaded with 60 wt.% sulfur to form the cathode materials, which delivers an initial specific capacity of 1105 mAh g-1 and a high capacity retention of 74% even after 100 cycles. Thus, this investigation provides a facile method of preparing hierarchical porous hollow carbon microstructures from plant tracheids, which can be applied as electrode materials excellently.

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Publication details

The article was received on 16 Dec 2016, accepted on 18 Apr 2017 and first published on 18 Apr 2017


Article type: Paper
DOI: 10.1039/C6NJ03910C
Citation: New J. Chem., 2017, Accepted Manuscript
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    Hierarchical carbon microstructures prepared from oil-palm-shell tracheids for Li-S batteries

    F. Zhao, D. Li, B. Cao, M. Liu, K. Chen and Y. Chen, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C6NJ03910C

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