Abstract
A new type of low-cost activated micro-macroporous carbon suitable for mass production that is derived from cotton was successfully prepared by using potassium hydrate in a chemical activation method. The activated carbon exhibits a hierarchically porous microstructure and high specific surface area (1286 m2 g-1). The micro-macroporous structure allows a large amount of sulfur (68%) to be infiltrated into the micropores of the host. When evaluated as a cathode for lithium-sulfur batteries, the hierarchically porous carbon-sulfur composite electrode exhibits excellent cycling stability and good performance. The resulting composite electrode possesses a reversible capacity of 760 mA h g-1 after 200 cycles at the 0.2 C current rate. This journal is © The Royal Society of Chemistry 2014.
| Original language | English |
|---|---|
| Pages (from-to) | 65074-65080 |
| Journal | RSC Advances |
| Volume | 4 |
| Issue number | 110 |
| DOIs | |
| Publication status | Published - 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 [email protected].Funding
Financial support provided by the Australian Research Council (ARC) Discovery Project (DP1094261) is gratefully acknowledged. Furthermore, the authors acknowledge Dr Tania Silver for critical reading of the manuscript and valuable remarks.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
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