In　this　work,　the　form-stable　phase　change　material　(PCM)　was　prepared　by　absorbing　tetradecanol　(TD)　into　expanded　graphite　(EG).　Then,　the　obtained　TD/EG　was　coated　with　graphene　oxide　(GO)　through　electrostatic　self-assembly　to　prepare　a　novel　composite　PCM　(TD/EG-GO).　The　morphology,　phase　change　and　thermal　properties　of　TD/EG-GO　were　fully　discussed.　The　DSC　analysis　shows　that　the　TD/EG-GO　composite　melts　at　35.2　°C　with　latent　heat　value　of　189.5　J/g　and　freezes　at　34.9　°C　with　latent　heat　value　of　187.9　J/g.　The　thermal　cycling　test　results　reveal　that　the　latent　heat　of　TD/EG-GO　composite　decrease　by　less　than　1%　after　500　thermal　cycles,　indicating　that　the　structure　of　GO-coated　EG　efficiently　prevents　the　leakage　of　TD.　The　thermal　stability　and　thermal　conductivity　of　TD/EG-GO　composite　are　also　improved　compared　with　that　of　uncoated　TD/EG,　demonstrating　the　multiple　benefits　of　surface　coating　of　GO.　©　2020