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                Figure 9. Flexible EMI PCCs constructed based on graphene. (A) Preparation of CPCM composites, thermal storage capacity and
                thermal conductivity, schematic diagram of thermal management of electronic cooling and EMI shielding mechanism. Reproduced with
                permission from  ref [145] . Copyright 2021, Wiley-VCH; (B) Preparation of MGGF composites, thermal storage capacity, schematic
                diagram of photothermal conversion, schematic diagram of chip thermal management, and EMI shielding mechanism. Reproduced with
                permission from  ref [146] . Copyright 2023, Elsevier. EMI: Electromagnetic interference; PCCs: phase change composites; CPCM:
                composite phase change material;  MGGF: MXene-graphene foam.

               Adding a small number of metal nanoparticles can overcome the drawbacks of traditional metals, such as
               susceptibility to corrosion, high density, and difficulty in processing while imparting high electrical and
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