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Creative utilization of natural nanocomposites: nitrogen-rich mesoporous carbon for high performance sodium ion battery

Abstract

A resource-abundant, low-cost and high-performance anode is indispensable to the future success of sodium ion batteries (SIBs) for application in large-scale energy storage. Animal wastes are naturally pre-organized organic/inorganic nanocomposite materials composed of collagen and nano-minerals. Making the best use of these natural nanocomposites is a good choice to develop carbon anodes for SIBs. Here, using shrimp skin as an example, we demonstrate nitrogen-rich mesoporous carbon materials can be simply prepared from natural nanocomposite for high performance SIBs. Being used as a precursor for porous carbon, the collagen is a nitrogen-rich carbon precursor, while the nano-mineral, distributed evenly in the collagen matrix, acts as a hard template to create mesopores. By direct pyrolysis under inert atmosphere and followed mineral removal, the shrimp skin is easily transferred into nitrogen-rich mesoporous carbons, a high performance sodium storage material, turning “trash” into “treasure”. The unique microstructure makes the nitrogen-rich mesoporous carbon exhibit outstanding performances as anodes for SIBs. The reversible sodium storage capacity reaches as high as 434.6 mAh g-1 at 30 mA g-1 with excellent cycle durability and rate capability. These results indicate the creative utilization of natural nanocomposites is a facile, sustainable strategy for the synthesis of high performance sodium storage materials.

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Publication details

The article was received on 01 Mar 2017, accepted on 12 Apr 2017 and first published on 12 Apr 2017


Article type: Paper
DOI: 10.1039/C7TA01891F
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    Creative utilization of natural nanocomposites: nitrogen-rich mesoporous carbon for high performance sodium ion battery

    B. Xu, H. Liu, M. Jia, S. Yue, B. Cao, Q. Zhu and N. Sun, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA01891F

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