Dimension-controlled N-doped graphitic carbon nanostructures through low-temperature metal-catalyzed transformation from C3N4 for high-performance electrochemical barrier in lithium-sulfur batteries

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Park, Jae Seo; Park, Dong Yoon; Yang, Seo Mi; Ryu, Jeong Heon; Park, Jae Hui; Kim, Sang Min; Jin, Hyoung-Joon; Park, Chong Rae; Kim, Jae Ho; Yang, Seung Jae

Issue Date
Pergamon Press Ltd.
Carbon, Vol.196, pp.204-212
Continuous efforts have been devoted to establishing viable synthetic guidelines for dimension-controlled carbon nanomaterials. This paper proposes a dimension-convertible synthetic procedure based on metal-organic com-plexes. One-or two-dimensional carbon nanostructures can be developed through the different graphitization behaviors of metal-organic complexes according to the selected metal ions. These nanostructures possess vital functions from surface nitrogen functionalities and embedded metal species for a wide range of applications. These distinctive structural functions are applied to functionalize the general separator as an electrochemical barrier for lithium-sulfur (Li-S) batteries. Benefiting from the polysulfide blocking function and electrocatalytic effect, the resulting separator Li-S cells exhibit high-rate capability and stable cycling performance. The remarkable performance combined with comprehensive characterization of the resulting dimension-controlled carbon nanomaterials provides new insights into the design of functional nanomaterials for energy and envi-ronmental research.
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Materials Science and Engineering (재료공학부)Journal Papers (저널논문_재료공학부)
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