The allotted time for invited talks is 30 minutes plus 10 min discussion time. Please check the draft program (here) to integrate your topic into the conference schedule and session. The resonance of your talk will be augmented if you celebrate the occasion of giving a "first" talk of the session / conference with a proper introduction.
Please remember that your presentations, i.e. the Poster AND Oral contributions should address a broad scientific audience of Chemist, Physicists and Engineers, in particular also young scientists at the start of their career. In this context it is also recommended to put your own work in context of earlier work, earlier literature and earlier presentations at the conference.