Abstract: Single atom catalysts (SACs) are efficient electrocatalysts for catalyzing the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in lithium-oxygen batteries (LOBs). Our method is to study the origin of reactivity for a series of 17 transition metals supported on nitrogen-doped graphene, denoted SACs using Quantum Mechanics methods. Based on Gibbs free energy calculations, Zn-SAC performs the highest electrochemical activity among 17 SACs investigated. Machine learning (ML) is developed an intrinsic descriptor ?, that correlates the catalytic activity with electronic and chemical properties of the catalytic centers at the M-N4 active site on graphene surface. A linear relationship between ? and the catalytic activity that provides guidance for designing efficient SACs for electrocatalysis in LOBs. Zn-SAC is synthesized through chemical vapor deposition (CVD) process, which shows more stable cyclability and exhibits smaller reaction overpotentials, verifying the simulation results.

Abstract: This disclosure provides methods and apparatus with regard to ultrathin metal-organic frameworks for the application of carbon dioxide reduction. In one aspect, a method of preparing metal-organic frameworks by copper and second metal ion clusters coordinating with metalloporphyrinic linkers. In the other aspect, the metal-organic frameworks are coated on the working electrode as electrocatalysts for carbon dioxide reduction are presented.

Abstract: An aligned and multichannel peripheral nerve conduit, including Polyvinyl alcohol (PVA) and graphene oxide (GO) with aligned and multichannel design for peripheral nerve repair. 3D printing technology with assembly is utilized to make a specific mold to get a multichannel design to mimic natural peripheral nerves. Directional freeze casting is used to form an aligned PVA/GO hydrogel structure to guide cell growth.

Abstract: A heat spreader composed of a hexagonal boron carbon nitride (hBCN) thin film, can be a major solution for the ever-increasing problem of overheating electronic devices. This heat spreader can dissipate heat away from hotspots on electronic devices, unlocking additional processing power. Our method is able to effectively tune the thermal and electrical conductivity of our films by modulating the carbon content of the precursor used in a chemical vapor deposition (CVD) process. Using this method, we can generate a heat spreader that is electrically insulative, so it will not have the potential to create shorts, like graphene and metals. Additionally, we can maximize the thermal conductivity, obtaining a value of 460±149 W/m·K, which rivals or even surpasses hexagonal boron nitride (hBN). As our precursor material is 10 times cheaper than the most common hBN precursor, this is an economical alternative to hBN for heat spreader applications.

Abstract: An anode materials VSe2/Zn, including a functional Vanadium diselenide (VSe2) with graphene support composite coated on the Zn metal with super ion conductivity, is used in a zinc ions battery. The synthesis process includes polymerization and chemical vapor deposition process for selenization with selenium powder.

Abstract: The subject invention pertains to a method of forming an adhesive material by a branching polymerization free of restrictive or harsh reaction conditions. A readily polymerizable composition includes a component comprises a chain-transfer functionality that can induce the formation of branches upon polymerization of the composition. The method enables in-situ polymerization and surface-initiated polymerization useful for rapid adhesive material formation on surfaces such as biological tissue.

Abstract: Provided are methods for growing large-size, uniform graphene layers on planarized substrates using Chemical Vapor Deposition (CVD) at atmospheric pressure; graphene produced according to these methods may have a single layer content exceeding 95%. Field effect transistors fabricated by the inventive process have room temperature hole mobilities that are a factor of 2-5 larger than those measured for samples grown on commercially-available copper foil substrates.

Abstract: Disclosed are graphene oxide membrane materials of high surface area, which membranes suitably have a surface area of above about 200 ?m and exhibit electrical conductivity in excess of about 200 S/m. Also provided are methods of synthesizing such membranes, as well as devices and sensors that incorporate these novel grapheme materials.

Abstract: Provided are methods for growing large-size, uniform graphene layers on planarized substrates using Chemical Vapor Deposition (CVD) at atmospheric pressure; graphene produced according to these methods may have a single layer content exceeding 95%. Field effect transistors fabricated by the inventive process have room temperature hole mobilities that are a factor of 2-5 larger than those measured for samples grown on commercially-available copper foil substrates.

Abstract: Disclosed are graphene oxide membrane materials of high surface area, which membranes suitably have a surface area of above about 200 ?m and exhibit electrical conductivity in excess of about 200 S/m. Also provided are methods of synthesizing such membranes, as well as devices and sensors that incorporate these novel grapheme materials.