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a) Preparation diagram of wood‐derived carbon‐based composite PCMs. b) SEM images. Reproduced with permission.[ 157 ] Copyright 2018, Royal Society of Chemistry. c) Preparation diagram of adromischus cooperi‐derived carbon‐based composite PCMs. d) SEM images of spongy cell and palisade cell. Reproduced with permission.[ 159 ] Copyright 2019, Elsevier. e) Preparation diagram of cotton‐derived porous carbon. Reproduced with permission.[ 137 ] Copyright 2018, Royal Society of Chemistry.
