Generation of B-Doped Graphene Nanoplatelets Using a Solution Process and Their Supercapacitor Applications

Abstract

Chemically modified graphene (CMG) nanoplatelets have shown great promise in various applications due to their electrical properties and high surface area. Chemical doping is one of the most effective methods to tune the electronic properties of graphene materials. In this work, novel B-doped nanoplatelets (borane-reduced graphene oxide, B-rG-O) were produced on a large scale via the reduction of graphene oxide by a borane-tetrahydrofuran adduct under reflux, and their use for supercapacitor electrodes was studied. This is the first report on the production of B-doped graphene nanoplatelets from a solution process and on the use of B-doped graphene materials in supercapacitors. The B-rG-O had a high specific surface area of 466 m(2)/g and showed excellent supercapacitor performance including a high specific capacitance of 200 F/g in aqueous electrolyte as well as superior surface area-normalized capacitance to typical carbon-based supercapacitor materials and good stability after 4500 cycles. Two- and three-electrode cell measurements showed that energy storage in the B-rG-O supercapacitors was contributed by ion adsorption on the surface of the nanoplatelets in addition to electrochemical redox reactions.

Graphene based metal and metal oxide nanocomposites: synthesis, properties and their applications

“…312 In order to increase the specific capacitance and the power density of EDLCs much attention has to be paid to the enhancement of the electrode materials properties. Recently, graphene has attracted attention as electrode materials in supercapacitors because of its high surface area, chemical inertness, excellent flexibility, and superb electrical conductivity.…”

Supercapacitors specialities - Materials review

“…In [51] for novel borane-reduced graphene oxide used in two and three electrode electrochemical measurements (aqueous electrolyte) a specific capacitance of 200 F/g for a surface of 466 m 2 /g is reported. It is shown that energy storage in such supercapacitors was contributed by ion adsorption on the surface of the nanoplatelets in addition to electrochemical redox reactions (pseudocapacitance).…”

Heteroatom–doped hollow carbon microspheres based on amphiphilic supramolecular vesicles and highly crosslinked polyphosphazene for high performance supercapacitor electrode materials

“…These heteroatoms come from the molecular 12 backbones of the HPMSs. The presence of heteroatoms in carbon structure has been demonstrated to be efficient in promoting the specific capacity [10,12,[33][34][35]. As shown in Table 1 (Fig.…”