Disclosed herein are methods for forming a graphene film on a substrate, the methods comprising depositing graphene on a surface of the substrate by a first vapor deposition step to form a discontinuous graphene crystal layer; depositing a graphene oxide layer on the discontinuous graphene crystal layer to form a composite layer; and depositing graphene on the composite layer by a second vapor deposition step, wherein the graphene oxide layer is substantially reduced to a graphene layer during the second vapor deposition step. Transparent coated substrates comprising such graphene films are also disclosed herein, wherein the graphene films have a resistance of less than about 10 KΩ/sq.

Disclosed herein are methods for forming a graphene film on a substrate, the methods comprising depositing graphene on a surface of the substrate by a first vapor deposition step to form a discontinuous graphene crystal layer; depositing a graphene oxide layer on the discontinuous graphene crystal layer to form a composite layer; and depositing graphene on the composite layer by a second vapor deposition step, wherein the graphene oxide layer is substantially reduced to a graphene layer during the second vapor deposition step. Transparent coated substrates comprising such graphene films are also disclosed herein, wherein the graphene films have a resistance of less than about 10 KΩ/sq.

Described herein is a functional graphene composition comprising a graphene scaffold and one or more metal chelating functional groups covalently bonded to the graphene scaffold and a porous substrate that includes the functional graphene composition. Also provided is a method of removing dissolved metals from an aqueous liquid, such as, acid mine drainage.

Described herein is a functional graphene composition comprising a graphene scaffold and one or more metal chelating functional groups covalently bonded to the graphene scaffold and a porous substrate that includes the functional graphene composition. Also provided is a method of removing dissolved metals from an aqueous liquid, such as, acid mine drainage.

The present invention provides a method for the manufacture of graphene oxide from Kish graphite.

The present invention provides a method for the manufacture of graphene oxide from Kish graphite.

The present invention relates to catalysts or catalytic systems comprising liquid metals, and in particular, to catalysts or catalytic systems comprising liquid metals droplets dispersed in a solvent, as well as to methods and uses of such catalysts or catalytic systems. In some embodiments, the present disclosure provides a ‘green’ carbon capture and conversion technology offering scalability and economic viability for mitigating CO.sub.2 emissions.

The present invention relates to catalysts or catalytic systems comprising liquid metals, and in particular, to catalysts or catalytic systems comprising liquid metals droplets dispersed in a solvent, as well as to methods and uses of such catalysts or catalytic systems. In some embodiments, the present disclosure provides a ‘green’ carbon capture and conversion technology offering scalability and economic viability for mitigating CO.sub.2 emissions.

This specification presents sheets including graphitic materials, including sandwich structures, thermoformed or wet-formed single layer or multilayer structures of graphitic materials, and methods of forming a layer of graphitic material. In accordance with one aspect, the specification presents a multi-layer structure comprising a core layer having a core density between 0.01 and 1 g/cm.sup.3; and a skin layer covering the core layer, the skin layer having at least 10% by weight of a graphitic material, the graphitic material having one or more of graphene oxide, reduced graphene oxide, graphene, graphite oxide, reduced graphite oxide and graphite, the skin layer having a skin density of between 0.5 and 2 g/cm.sup.3 , a thickness ratio of the skin layer to the core layer being of between 1:1000 and 1:1.

The present disclosure features a Janus composite having a hydrophobic nanoparticulate component and a 2- or 3-dimensional hydrophilic framework, and materials, systems, methods of making the Janus composite and methods of using the Janus composite for separating oil from an oil-in-water emulsion. For example, Janus composites with MoS2 nanospheres on/in a hydrophilic reduced graphene oxide (rGO) or cellulose acetate framework are provided.