University of Arkansas

Daoyuan Wang

Wei Zhao

Alexandru S Biris

Yang Xu

A method of synthesizing a three-dimensional (3D) reduced graphene oxide (RGO) foam embedded with water-splitting nanocatalysts includes providing at least one solution containing at least one precursor of nanocatalysts, and a graphene oxide (GO) aqueous suspension; mixing the GO aqueous suspension with the at least one solution to form a mixture suspension; and performing hydrothermal reaction in the mixture suspension to form a 3D RGO foam embedded with the nanocatalysts.

3D reduced graphene oxide foams embedded with nanocatalysts, synthesizing methods and applications of same

A method of synthesizing three-dimensional (3D) reduced graphene oxide (RGO) foams embedded with water splitting nanocatalysts includes providing a first solution containing nickel (II) nitrate, a second solution containing iron (III) nitrate, and a graphene oxide (GO) aqueous suspension; mixing the GO aqueous suspension with the first solution and the second solution to form a GO-Ni&#x2014;Fe mixture; adjusting a pH value of the GO-Ni&#x2014;Fe mixture to be about 3.5; and performing hydrothermal reaction in the GO-Ni&#x2014;Fe mixture to form RGO-Ni&#x2014;Fe foams, wherein nanocatalysts containing Ni-Fi oxide particles are embedded in porous structures of the 3D RGO foams.

A magnetic oxide-quantum dot nanocomposite and methods of synthesizing it. In one embodiment, the magnetic oxide-quantum dot nanocomposite has at least one magnetic oxide nanoparticle coated with a silica (SiO) shell and terminated with at least one thiol group (&#x2014;SH), and at least one CdSe/ZnS quantum dot linked with the at least one SiO-coated magnetic oxide nanoparticle via the at least one thiol group. In one embodiment, the at least one magnetic oxide nanoparticle comprises at least one iron oxide (FeO) nanoparticle.

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Greensboro, NC, United States of America

Daoyuan Wang