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Issue 7, 2012
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Lithium storage in nitrogen-rich mesoporous carbon materials

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Nitrogen-rich mesoporous carbon materials were obtained by pyrolyzing gelatin between 700 and 900 °C with a nano-CaCO3 template. The mesoporous structure and the high nitrogen content endowed these materials with reversible capacities up to ca. 1200 mA h g−1. The high specific surface area and the nitrogen doping are responsible for the capacity loss in the initial cycle. FTIR and XPS studies indicate that the nitrogen in the material exists in the form of pyridinic, pyrrolic/pyridonic and graphitic nitrogen. The Raman spectroscopic analysis indicates that the structure of the mesoporous carbon becomes more disordered during discharge and is restored during recharge, a behavior similar to that in nitrogen-free hard carbon materials. The reversible structural variation of these carbon materials ensures their high cyclic reversibility.

Graphical abstract: Lithium storage in nitrogen-rich mesoporous carbon materials

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Publication details

The article was received on 31 Mar 2012, accepted on 11 May 2012 and first published on 11 May 2012

Article type: Paper
DOI: 10.1039/C2EE21817H
Citation: Energy Environ. Sci., 2012,5, 7950-7955

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    Lithium storage in nitrogen-rich mesoporous carbon materials

    Y. Mao, H. Duan, B. Xu, L. Zhang, Y. Hu, C. Zhao, Z. Wang, L. Chen and Y. Yang, Energy Environ. Sci., 2012, 5, 7950
    DOI: 10.1039/C2EE21817H

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