Metallasilsesquioxane-derived ultrathin porous carbon nanosheet 3D architectures via an “in situ dual templating” strategy for ultrafast sodium storage

It is the first time that metallasilsesquioxanes are introduced into the synthesis of porous carbon nanosheets. Lithium hepta(i-butyl)silsesquioxane trisilanolate is a multifunctional precursor for both carbon sources and templates with different dimensions.