Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 792, Issue -, Pages 487-495Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.04.027
Keywords
Energy storage materials; Electrode materials; Nanostructured materials; Oxide materials; Nanofabrications
Categories
Funding
- National Natural Science Foundation of China [51572012]
- Doctoral Fund of Ministry of Education of China [20120010110001]
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Highly porous MnO/C@rGO nanocomposites have been successfully prepared via a facile and scalable strategy. Firstly, the Mn-BDC was grown in situ on the graphene oxide containing a large number of functional groups, which acted as not only efficient nucleation sites but also structure-directing templates. Then Mn-BDC@GO could be directly carbonized in an inert atmosphere to obtain highly porous MnO/C@rGO nanocomposites. The addition of graphene improved the electronic conductivity, increased the specific surface area, and its two-dimensional structure enhanced the diffusion rate of lithium ions. The as-fabricated MnO/C@rGO nanocomposites exhibited remarkable reversible specific capacity and excellent cycle stability which maintained a reversible discharge capacity of 1536.4 mA h g(-1) after 100 cycles at 100 mA g(-1). And more impressively, a discharge capacity of 909.1mA h g(-1) could be retained at a current density of 1 A g(-1) after 500 cycles, making it a high-performance anode for lithium ion battery. Moreover, high-capacity, long-cycle, and high-rate performance nanocomposites could be prepared as anode material for lithium-ion batteries through this facile, environmentally friendly, cost-effective method. (C) 2019 Elsevier B.V. All rights reserved.
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