Vertically MoS₂ on Reduced Graphene Oxide with Superior Durability for Quasi‐solid‐state Supercapacitor

Abstract

Molybdenum disulfide (MoS2) is a two‐dimensional layer structure with high edge energy state, resulting in high chemical activity. It can be widely used in the supercapacitors. Herein, a novel conductive architectures of MoS2/reduced graphene oxide (rGO) nanosheets was immobilized on carbon cloth (CC) via hydrothermal method. The MoS2/rGO nanosheets are uniformly grown on CC, which can provide a higher specific surface area and increase additional active sites. The intimate contact between nanostructured MoS2/rGO and active CC is in favor of maintaining the stability of structure. As a result, MoS2/rGO as a supercapacitor electrode material shows high specific capacitance of 331 F g−1 at 0.75 A g−1 and excellent cycling stability with a specific capacitance retention of 110.7% after 15000 cycles. Moreover, the asymmetric supercapacitor is assembled and the device shows a high energy density of 29.2 Wh kg−1 and a high power density of 4517.7 W kg−1. These results indicate that MoS2/rGO as an electrode material has an important application potential in supercapacitors.

Low‐temperature preparation and photoelectrochemical properties of TiO2 nanotubes‐graphene‐CNT hybrid structure

“…For example, metal decoration has been mainly employed to be used as a catalyst 17 . Besides, doping of various carbon materials such as graphene and carbon nanotubes (CNTs) changes the electronic properties, which might be used as an electrocatalyst, sensors, supercapacitors, and electronic devices 18‐23 …”

“…17 Besides, doping of various carbon materials such as graphene and carbon nanotubes (CNTs) changes the electronic properties, which might be used as an electrocatalyst, sensors, supercapacitors, and electronic devices. [18][19][20][21][22][23] Amount difference candidates for preparation of hybrid carbon-based materials, titanium dioxide is a particular candidate for the preparation of photosensitive structures because this metal oxide is known for its promising photocatalytic abilities. [24][25][26] In this line, many research studies have been reported on the preparation and photocatalytic ability of titanium dioxide and its hybrid materials.…”

Wafer‐Like CoS Architectures and Their Nanocomposites with Polypyrrole for Electrochemical Energy Storage Applications

“…[7] The transition metal sulfides are more abundant and more stable than their counterpart oxides. Among the transition metal sulfides, the FeS 2 , NiS, ZnS, MoS 2 , [8] and CoS are much famous due to their low cost, [9] higher theoretical capacitance [10] and excellent redox properties. [11] Instead of higher electrochemical potential, pristine TMSs are not suitable for advanced energy storage applications as they offer lower electronic conductivity and limited surface area.…”