Metal-organic　polyhedra　(MOPs)　have　been　incorporated　into　silica　nanopores　for　the　first　time.　Three　MOPs　with　identical　geometries　but　different　ligand　functionality　(namely　tert-butyl,　hydroxyl,　and　sulfonic　groups)　were　employed.　A　typical　mesoporous　silica,　SBA-15,　with　a　two-dimensional　hexagonal　pore　regularity　was　used　as　the　host.　In　comparison　with　bulk　MOPs,　which　prefer　to　aggregate,　MOPs　confined　in　silica　nanopores　can　be　well　dispersed,　making　the　active　sites　and　pores　in　the　MOPs　accessible.　These　dispersed　MOPs　showed　apparently　superior　H-2　adsorption　capacity　in　comparison　with　aggregated　bulk　MOPs.　Moreover,　the　thermal　stability　of　the　MOPs　was　enhanced　upon　their　confinement　in　silica　nanopores.