Rational design of MnS nanoparticles anchored on N,S-codoped carbon matrix as anode for lithium-ion batteries |
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Affiliation: | 1. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071, China;2. Quick Gem Optoelectronic S and T Co., Ltd., Langfang, 065001, China |
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Abstract: | The manganese sulfide (MnS) has attracted more attention as anode material on energy storage and conversion field, owing to its high theoretical capacity (616 mA h g−1) and good electrochemical activity. However, low electronic conductivity and large volume expansion during charge-discharge processes have limited its further application. In order to address above mentioned problems, the composites, MnS nanoparticles embedded in N,S-codoped porous carbon skeleton (named as MnS/N,S–C composites), herein have been prepared successfully using metal organic framework (Mn-NTA) as template. The porous carbon skeleton not only can enhance electrode conductivity, but also relieve volume expansion during charge-discharge processes. Thus, the rational design towards electrode architectures has endowed MnS/N,S–C nanocomposites with superior electrochemical performance, which delivers the specific capacities of 676.7 mA h g−1 at the current density of 100 mA g−1. |
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Keywords: | N,S-codoped MnS Nanocomposites Rods-like Lithium ion batteries |
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