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|Title:||A facile synthesis approach to micro-macroporous carbon from cotton and its application in the lithium-sulfur battery|
|Citation:||RSC Advances: an international journal to further the chemical sciences, 2014; 4(110):65074-65080|
|Publisher:||Royal Society of Chemistry|
|Hongqiang Wang, Zhixin Chen, Hua Kun Liua and Zaiping Guo|
|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.|
|Rights:||This journal is © The Royal Society of Chemistry 2014|
|Appears in Collections:||Aurora harvest 4|
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