| 초록 |
Ammonia borane is a promising hydrogen storage material because of its high gravimetric storage capacity, nontoxicity, and good stability at room temperature. Some transition metals such as cobalt are known as good catalysts which could increase the rate of H2 gas releasing from ammonia borane. In this study, electrospun PVA/Si composite nanofibers were chemically modified by [3-(2-aminoethylamino)propyl] trimethoxysilane. Co nanoparticles were prepared by the chemical reduction of CoCl2. When the reduction was carried out in the presence of the modified PVA/Si composite nanofibers, the Co nanoparticles were deposited on the surface of the nanofibers. This result suggested that cobalt ions were complexed with 3-(2-aminoethylamino)propyl groups on the nanofibers and became nucleation sites. |
