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Title: One-step electrochemical preparation of graphene-based heterostructures for Li storage
Authors: Zhang, Wenyu
Zeng, Yi
Xiao, Ni
Hng, Huey Hoon
Yan, Qingyu
Keywords: DRNTU::Engineering::Materials
Issue Date: 2012
Source: Zhang, W., Zeng, Y., Xiao, N., Hng, H. H., & Yan, Q. (2012). One-step electrochemical preparation of graphene-based heterostructures for Li storage. Journal of Materials Chemistry, 22(17), 8455-8461.
Series/Report no.: Journal of materials chemistry
Abstract: We report a facile method to prepare nanoarchitectured metal oxides/graphene hybrids as both positive and negative electrodes for Li-ion batteries. The metal oxides/graphene hybrids were synthesized by deposition of metal oxides and exfoliation of graphene sheets in a one-step electrochemical process. The hybrid electrodes showed high specific capacities with excellent cycling stability. For example, the Fe2O3/graphene anode was able to deliver a discharge capacity of up to 894 mA h g−1 during the 50th cycle at 0.3 C. Co3O4/graphene depicted a discharge capacity of 880 mA h g−1 during the 40th cycle at 0.3 C. The V2O5/graphene cathode delivered a discharge capacity of 208 mA h g−1 during the 100th cycle at 6.8 C.
DOI: 10.1039/c2jm16315b
Rights: © 2012 The Royal Society of Chemistry.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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