首页| Ordered sodium zeolite-templated carbon with high first discharge capacity for sodium battery application
Ordered sodium zeolite-templated carbon with high first discharge capacity for sodium battery application
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NSTL
A zeolite-templated carbon (ZTC) material was synthesized using a vapor phase impregnation method. This ZTC exhibited an outstandingly high specific surface area of 3100 m~2 g~(-1) along with a considerable total pore volume of 1.74 cm~3 g~(-1). The properties of this ZTC were optimized by controlling the deposition process of the furfuryl alcohol, used as the carbon precursor, on the sodium-bearing zeolite Y template (FAU-type framework structure). The ZTC was then used as a negative electrode in a sodium battery setup. A high first discharge capacity of 1714 mAh·g~(-1) for the ZTC was obtained, of which 16% was reversible. In addition, atomistic simulations confirmed that a theoretical capacity of 552 mAh·g~(-1) for the ZTC containing six sodium ions per supercage was reasonably achieved. The new vapor phase impregnation method presented here and applied for the synthesis of ZTC using sodium-bearing zeolites is highly reproducible and scalable, paving the way for the development of future applications.
ZeoliteCarbonTemplateVapor phase impregnationDensity functional theory
Shuang Tan、Chunxu Wang、Yann Foucaud
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State Key Laboratory of Heavy Oil Processing Key Laboratory of Catalysis, China National Petroleum Corp. (CNPC) China University of Petroleum (East China), Qingdao, 266555, PR China
Laboratoire de Physique et Chimie Theoriques UMR CNRS 7019, Universite de Lorraine, Nancy, France
NSTL
