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(a) Schematic for the synthesis of E-MG. (b) Scanning electron microscopy (SEM) image of free-standing MoS2/graphene foam. Reprinted with permission from Fan et al. [104] Copyright 2017, WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. (c) The atomic structure with the expanded interlayer distance of MoS2. Reprinted with permission from Li et al. [78] Copyright 2018, Elsevier B.V.
