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Issue 32, 2016
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A nitrogen doped carbonized metal–organic framework for high stability room temperature sodium–sulfur batteries

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Abstract

A nanoporous nitrogen doped carbon matrix was prepared by carbonization of metal–organic framework zeolitic imidazolate framework (ZIF-8) precursors. The doped carbon matrix was melt-infiltrated with sulfur to form a carbonized ZIF-8/S composite. The composite material exhibited good performance as the cathode for room-temperature sodium–sulfur battery (Na–S) systems. A reversible specific capacity of around 1000 mA h g−1 could be achieved at a rate of 0.1C; and a reversible specific capacity of 500 mA h g−1 was obtained at a rate of 0.2C after 250 cycles. The good performance of the Na–S battery could be attributed to the synergistic effect from the nanoporosity of the carbon matrix and the high nitrogen-doping content (ca. ∼18 at%). These attributes enhanced the entrapment of the sulfur molecules inside the carbon matrices.

Graphical abstract: A nitrogen doped carbonized metal–organic framework for high stability room temperature sodium–sulfur batteries

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Publication details

The article was received on 31 May 2016, accepted on 10 Jul 2016 and first published on 13 Jul 2016


Article type: Paper
DOI: 10.1039/C6TA04529D
Citation: J. Mater. Chem. A, 2016,4, 12471-12478
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    A nitrogen doped carbonized metal–organic framework for high stability room temperature sodium–sulfur batteries

    Y. Chen, W. Liang, S. Li, F. Zou, S. M. Bhaway, Z. Qiang, M. Gao, B. D. Vogt and Y. Zhu, J. Mater. Chem. A, 2016, 4, 12471
    DOI: 10.1039/C6TA04529D

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