Hydrous Ruthenium Oxide Nanoparticles Anchored to Graphene and Carbon Nanotube Hybrid Foam for Supercapacitors
Citations Over TimeTop 1% of 2014 papers
Abstract
In real life applications, supercapacitors (SCs) often can only be used as part of a hybrid system together with other high energy storage devices due to their relatively lower energy density in comparison to other types of energy storage devices such as batteries and fuel cells. Increasing the energy density of SCs will have a huge impact on the development of future energy storage devices by broadening the area of application for SCs. Here, we report a simple and scalable way of preparing a three-dimensional (3D) sub-5 nm hydrous ruthenium oxide (RuO2) anchored graphene and CNT hybrid foam (RGM) architecture for high-performance supercapacitor electrodes. This RGM architecture demonstrates a novel graphene foam conformally covered with hybrid networks of RuO2 nanoparticles and anchored CNTs. SCs based on RGM show superior gravimetric and per-area capacitive performance (specific capacitance: 502.78 F g(-1), areal capacitance: 1.11 F cm(-2)) which leads to an exceptionally high energy density of 39.28 Wh kg(-1) and power density of 128.01 kW kg(-1). The electrochemical stability, excellent capacitive performance, and the ease of preparation suggest this RGM system is promising for future energy storage applications.
Related Papers
- → Electrochemical Properties of High-Power Supercapacitors Using Single-Walled Carbon Nanotube Electrodes(2001)863 cited
- → MoS2 nanosheets on plasma-nitrogen-doped carbon cloth for high-performance flexible supercapacitors(2022)51 cited
- → Synthesis of MnO2 nano-flakes for high performance supercapacitor application(2019)38 cited
- → Asymmetric supercapacitors based on high capacitance Ni6MnO8 and graphene(2019)24 cited
- A facile one-pot hydrothermal synthesis of Co₉S₈/Ni₃S₂ nanoflakes for supercapacitor application(2016)