▎ 摘　　要

NOVELTY - The thermal material has: an electrode; a film of reduced graphene oxide; a porous membrane that is sandwiched between the electrode and the film of reduced graphene oxide; and an ionic liquid that is disposed within pores of the porous membrane. The electrode comprises gold, copper, silver, titanium, platinum and/or tungsten. The film of reduced graphene oxide comprises single-layered reduced graphene oxide. The porous membrane comprises polyethersulfone. The ionic liquid is 1-butyl-3-methylimidazolium hexafluorophosphate. USE - Thermal material for changing an apparent temperature of an article (claimed) ADVANTAGE - The thermal material can be easily coated onto (or wrapped around) an article to adjust the article's apparent temperature. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method of preparing the thermal material; (2) a method of changing an apparent temperature of an article; and (3) a device. DESCRIPTION OF DRAWING(S) - The drawing shows a thermal material comprising a film of reduced graphene oxide, a porous asymmetric polyethersulfone membrane and a back gold electrode. 102Film of reduced graphene oxide 104Porous membrane 106Electrode 108Ionic liquid 110Power supply 112Lower infrared radiation