کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6470253 1424105 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Combination of Nitrogen-Doped Graphene with MoS2 Nanoclusters for Improved Li-S Battery Cathode: Synthetic Effect between 2D Components
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Combination of Nitrogen-Doped Graphene with MoS2 Nanoclusters for Improved Li-S Battery Cathode: Synthetic Effect between 2D Components
چکیده انگلیسی

Herein, a layer in layer nanocomposition of flower-shaped MoS2 nanoclusters with nitrogen-doped reduced graphene oxide(N-RGO@MoS2) has been successfully prepared by a facile hydrothermal method to build up 3D matrix for supporting sulfur. This approach will integrate the advantages and avoid the disadvantages of graphene and MoS2 through synergetic effect to produce an outstanding Li-S battery cathode, such as high electronic conductivity of N-RGO to reach great rate performance; stronger interaction between MoS2 and polysulfide to suppress the shuttle effect for an improved durability; the great compatibility between two 2D components avoids their self-aggregation to increase capacity through wrap around and adhesion effect with loaded sulfur. A series of samples with various content of MoS2 are investigated to optimize the electrode performance. Finally, N-RGO@MoS2-10/S delivers an optimal discharge capacity of 729.1 mAh g−1 at 0.3C with the coulombic efficiency of 97.3% after 180 cycles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 252, 20 October 2017, Pages 200-207
نویسندگان
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