Now showing items 21-30 of 34
Three-dimensional graphene network composites for detection of hydrogen peroxide
A three-dimensional graphene network (3DGN) prepared by CVD is used as a template to synthesize various composites. These composites are further used as electrodes for electrochemical sensors, which exhibit a low detection ...
Hollow core-shell nanostructure supercapacitor electrodes : gap matters
Hollow core-shell nanorods with a nanogap are designed and constructed with the assistance of atomic layer deposition (ALD) for energy storage applications. As a demonstration, CoO nanorods and NiO nanowalls are enclosed ...
Nanoporous walls on macroporous foam : rational design of electrodes to push areal pseudocapacitance
For application as a pseudocapacitor electrode, highly porous CoO nanowalls are fabricated directly on 3D macroporous nickel foam (see images). A relatively high areal capacitance is achieved because of the porous structure. ...
Surfactant-free sub-2 nm ultrathin triangular gold nanoframes
Ultrathin triangular gold nanoframes were synthesized in high yield through selective gold deposition on the edges of triangular silver nanoprisms and subsequent silver etching with mild wet etchants. These ultrathin gold ...
All-carbon electronic devices fabricated by directly grown single-walled carbon nanotubes on reduced graphene oxide electrodes
A simple method for fabrication of all carbon CNT-rGO devices was developed, where the individual long-aligned SWCNT directly grew by CVD to connect with rGO electrodes scratched by non-metal objects.
Fabrication of flexible, all-reduced graphene oxide non-volatile memory devices
A flexible, all reduced graphene oxide non-volatile memory device, with lightly reduced GO as an active layer and highly reduced GO as both top and bottom electrodes, is fabricated by a full-solution process and its ...
Vapor–liquid–solid growth of endotaxial semiconductor nanowires
Free-standing and in-plane lateral nanowires (NWs) grown by the vapor–liquid–solid (VLS) process have been widely reported. Herein, we demonstrate that the VLS method can be extended to the synthesis of horizontally aligned ...
Three-dimensional graphene materials : preparation, structures and application in supercapacitors
Three-dimensional (3D) graphene materials (3DGMs) are of great importance due to their unique properties and practical applications. A number of 3DGMs with novel structures have been developed in recent years. This review ...
Preparation of MoS2-coated three-dimensional graphene networks for high-performance anode material in lithium-ion batteries
A novel composite, MoS2-coated three-dimensional graphene network (3DGN), referred to as MoS2/3DGN, is synthesized by a facile CVD method. The 3DGN, composed of interconnected graphene sheets, not only serves as template ...
Metal oxide-coated three-dimensional graphene prepared by the use of metal-organic frameworks as precursors
A simple method for the preparation of metal-oxide-coated three-dimensional (3D) graphene composites was developed. The metal–organic frameworks (MOFs) that served as the precursors of the metal oxides were first synthesized ...