Molten　copper　is　used　to　catalyze　the　graphene　synthesis　by　chemical　vapor　deposition.　The　Cu　has　no　grains　above　melting　temperature,　which　is　favorable　for　graphene　growth.　Using　a　vertical　cold　wall　system,　the　deposition　rate　is　drastically　increased　as　compared　with　common　hot-wall　tube　furnaces,　pushing　the　method　one　step　forward　towards　applications.　A　molybdenum-graphite　Joule　heater　is　used　to　avoid　mechanical　deformation　of　the　carrier　foil　for　the　catalyst　to　ease　the　subsequent　processes.　The　rapid　deposition　makes　it　possible　to　observe　graphene　growth　on　liquid　Cu　even　at　low　pressure,　where　severe　Cu　evaporation　simultaneously　occurs.　(C)　2015　Elsevier　B.V.　All　rights　reserved.