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Issue 10, 2017
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Hierarchical carbon microstructures prepared from oil-palm-shell tracheids for Li–S batteries

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Abstract

Hierarchical porous hollow carbon microstructures (HPHCMs) have been successfully prepared from the cheap and abundant natural resource of oil palm shells, which are a well-known host material for the sulfur electrode in Li–S batteries. In this 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, the as-prepared HPHCMs are loaded with 60 wt% sulfur to form the cathode material, which delivers an initial specific capacity of 1105 mA h g−1 and a high capacity retention of 74%, even after 100 cycles. Thus, this investigation provides a facile method for preparing hierarchical porous hollow carbon microstructures from plant tracheids, which can be applied excellently as electrode materials.

Graphical abstract: Hierarchical carbon microstructures prepared from oil-palm-shell tracheids for Li–S batteries

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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., 2017,41, 4110-4115
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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, 41, 4110
    DOI: 10.1039/C6NJ03910C

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