▎ 摘　　要

NOVELTY - A nanoporous molded body (20A, 20B) comprises a nanoporous body which changes a pore diameter by applying and releasing stress, and can reversibly carry out a gas-liquid phase transition of an adsorptive substance taken as a guest molecule; and graphene oxide as a binder. USE - A nanoporous molded body used for heat exchanger (claimed). ADVANTAGE - The adsorbent is excellent in durability by efficiently adsorbing and desorbing the adsorbents. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacturing the nanoporous molded object (20A, 20B) which involves changing a pore diameter by applying and releasing a stress; and thermally treating a mixture containing a nanoporous body capable of reversibly carrying out a vapor-liquid phase transition of an adsorbate taken as a guest molecule and a graphene oxide as a binder; and heat-treating the mixture at 140-160 degrees C. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic sectional view of the structure of heat exchange apparatus. Heat exchanger (10) Nanoporous molded body (20A, 20B) Control unit (40) Piping (50) Valve (51)