TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The porous nano-structured material includes surface structure with high hydrogen content for storing hydrogen on the surfaces of porous nano-structured material. The porous nano-structured material includes surface structure releasing stored hydrogen from the surfaces of the porous nano-structured material by adopting surface structure with low hydrogen content. The porous nanostructured material comprises nanostructured semiconductor material designed by computer simulation for hydrogen storage or using first principles computer simulations to adopt structure storing hydrogen below the operating temperature and structure releasing hydrogen on the operating temperature The porous nano-structured material comprises silicon atoms (1 nm particle) with 100 facets containing silane containing silicon dihydride groups and reconstructed silicon hydride dimer groups. The porous nano-structured material comprises hybrid nanoparticles silicon hydride. The porous nano-structured material comprises hybrid nanoparticles of structure C10Si48H42 joined by 111 or 100 facets. The porous nano-structured material comprises hybrid nanoparticles joined by single bond. The porous nano-structured material comprises porous nano-structured semiconductor material. The porous nano-structured material comprises nanostructured semiconductor material designed by computer simulation for hydrogen storage.Preferred Methods: The absorbing hydrogen on surfaces of porous nano-structured semiconductor material comprises providing porous nanostructured semiconductor material with surface structure with high hydrogen content for storing hydrogen on the surfaces of the porous nanostructured semiconductor material. The providing step includes adopting surface structure with low hydrogen content. The absorbing hydrogen on surface comprises designing the porous nano-structured semiconductor material using first principles computer simulations to adopt a structure storing hydrogen below the operating temperature and structure releasing hydrogen on the operating temperature.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The porous nano-structured material includes surface structure with high hydrogen content for storing hydrogen on the surfaces of porous nano-structured material. The porous nano-structured material includes surface structure releasing stored hydrogen from the surfaces of the porous nano-structured material by adopting surface structure with low hydrogen content. The porous nanostructured material comprises nanostructured semiconductor material designed by computer simulation for hydrogen storage or using first principles computer simulations to adopt structure storing hydrogen below the operating temperature and structure releasing hydrogen on the operating temperature The porous nano-structured material comprises silicon atoms (1 nm particle) with 100 facets containing silane containing silicon dihydride groups and reconstructed silicon hydride dimer groups. The porous nano-structured material comprises hybrid nanoparticles silicon hydride. The porous nano-structured material comprises hybrid nanoparticles of structure C10Si48H42 joined by 111 or 100 facets. The porous nano-structured material comprises hybrid nanoparticles joined by single bond. The porous nano-structured material comprises porous nano-structured semiconductor material. The porous nano-structured material comprises nanostructured semiconductor material designed by computer simulation for hydrogen storage.Preferred Methods: The absorbing hydrogen on surfaces of porous nano-structured semiconductor material comprises providing porous nanostructured semiconductor material with surface structure with high hydrogen content for storing hydrogen on the surfaces of the porous nanostructured semiconductor material. The providing step includes adopting surface structure with low hydrogen content. The absorbing hydrogen on surface comprises designing the porous nano-structured semiconductor material using first principles computer simulations to adopt a structure storing hydrogen below the operating temperature and structure releasing hydrogen on the operating temperature.