In this regard 2D materials, such as graphene oxide (GO), have been used as matrices to develop oxide films. The way researchers have achieved this so far, is by inserting metal ions between the multilayer stacks of GO, a process that has allowed them to move in the direction of producing multilayer metal oxide films. This process, however, does not typically produce true atomic-scale growth of platelet crystals, but rather fragile 2D assemblies of particles separated by large unfilled spaces that are responsible for poor mechanical properties.
In a study published in Advanced Materials, Liu et al. from Brown University found a way to overcome this limitation and grow fully-dense, space-filling ceramic films. In their study, they demonstrate a new approach in graphene-templating, based on “metalized graphene ink” precursors engineered to ensure colloidal stability over a wide range of metal-carbon ratios.
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Source: Advanced Science News