Graphene Hybrid Aerogels Made via Phase Transfer Strategy. Issue 22 (29th August 2016) - Sun, Rui
Abstract : 3D aerogels hybridized with functional nanomaterials have great potential in the fields ranging from environmental remediation, energy storage to catalysis. However, co‐dispersion of these nanomaterials and their host–guest interaction enhancement are still great challenges. Herein, graphene hybrid aerogels incorporated with various nanomaterials have been synthesized via a phase transfer method by which the nanomaterials are transferred from the intermediate solution containing polyvinylpyrrolidone as a surfactant to graphene oxide aqueous suspension, followed by self‐assembly of these nanostructures into hybrid hydrogel precursors and subsequent supercritical drying of these precursors to obtain resulting aerogels. Reduced graphene oxide (rGO) aerogels hybridized with silver nanowires (Ag NWs), tungsten oxide nanowires, and polypyrrole nanoparticle are all realized via this method. The as‐prepared rGO‐Ag NWs hybrid aerogel exhibits low detect limit (10 −8 mol L −1 ) when it is employed as surface enhanced Raman scattering substrate with Rhodamine 6G as target molecule. Abstract : Graphene aerogels uniformly hybridized with various nanomaterials, ranging from metal, metal oxide to polymer nanostructures with different shape and size, are successfully synthesized through phase transfer method with graphene oxide as surfactant in mild condition.