Figure 27.
a) Preparation diagram of biological porous carbon. b) Preparation diagram of composite PCMs. Reproduced with permission.[ 161 ] Copyright 2018, Elsevier. c) SEM images of the original cotton fibers and carbon sponges. Reproduced with permission.[ 171 ] Copyright 2019, Elsevier. d) Preparation diagram of winter melon derived CAs and CAs/paraffin composite PCMs. e) Solar‐to‐thermal conversion curves of CAs/paraffin composite PCMs. Reproduced with permission.[ 158 ] Copyright 2014, Royal Society of Chemistry.