The nanoporous nitrogen doped carbon matrix was prepared by the metal organic framework zeolitic imidazolate framework (ZIF-8) precursors. The doped carbon matrix was successively melt-infiltrated with sulfur to form carbonized ZIF-8/S composite. The composite material exhibited good performance as the cathode for the room-temperature sodium-sulfur battery (Na-S) system. A reversible specific capacity of 1000 mAh/g could be achieved at a rate of 0.1 C; and demonstrate reversible specific capacity of 500 mAh/g at a rate of 0.2 C after 250 cycles. The excellent performance of the Na-S battery could be attributed to the synergistic effect from the mesoporous dimensions of the carbon matrix and the relatively high nitrogen-doping content, where the sulfur molecules were further enhanced in entrapment inside the carbon matrices.<br/><br/> [y1]Switched to 250 cycles with 500 mAh/g<br/>

Metal organic framework derived, nitrogen doped carbon for high stability room temperature sodium-sulfur battery

253rd National Meeting (2017)

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