Construction of reduced graphene oxide supported molybdenum carbides composite electrode as high-performance anode materials for lithium ion batteries

Journal Article · Fri Jan 15 04:00:00 EST 2016 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2015.09.030· OSTI ID:22584281

Chen, Minghua; Zhang, Jiawei ^[1]; Chen, Qingguo ^[1]; Qi, Meili ^[1]; Xia, Xinhui ^[2]

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1. Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), and School of Applied Science, Harbin University of Science and Technology, Harbin 150080 (China)
2. State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027 (China)

Highlights: • Reduced graphene oxide supported molybdenum carbides are prepared by two-step strategy. • A unique sheet-on-sheet integrated nanostructure is favorable for fast ion/electron transfer. • The integrated electrode shows excellent Li ion storage performance. - Abstract: Metal carbides are emerging as promising anodes for advanced lithium ion batteries (LIBs). Herein we report reduced graphene oxide (RGO) supported molybdenum carbides (Mo{sub 2}C) integrated electrode by the combination of solution and carbothermal methods. In the designed integrated electrode, Mo{sub 2}C nanoparticles are uniformly dispersed among graphene nanosheets, forming a unique sheet-on-sheet integrated nanostructure. As anode of LIBs, the as-prepared Mo{sub 2}C-RGO integrated electrode exhibits noticeable electrochemical performances with a high reversible capacity of 850 mAh g{sup −1} at 100 mA g{sup −1}, and 456 mAh g{sup −1} at 1000 mA g{sup −1}, respectively. Moreover, the Mo{sub 2}C-RGO integrated electrode shows excellent cycling life with a capacity of ∼98.6 % at 1000 mA g{sup −1} after 400 cycles. Our research may pave the way for construction of high-performance metal carbides anodes of LIBs.

• OSTI ID: 22584281
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 73; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ANODES
CARBON OXIDES
COMPOSITE MATERIALS
ELECTRON TRANSFER
ENERGY STORAGE
GRAPHENE
LITHIUM ION BATTERIES
MOLYBDENUM
MOLYBDENUM CARBIDES
NANOPARTICLES
NANOSTRUCTURES
PERFORMANCE
SHEETS