Abstract
Graphene-based nanocomposites attract many attentions because of holding promise for many applications. In this work, multishelled NiO hollow spheres decorated by graphene nanosheets nanocomposite are successfully fabricated. The multishelled NiO microspheres are uniformly distributed on the surface of graphene, which is helpful for preventing aggregation of as-reduced graphene sheets. Furthermore, the NiO/graphene nanocomposite shows much higher electrochemical performance with a reversible capacity of 261.5 mAh g−1at a current density of 200 mA g−1after 100 cycles tripled compared with that of pristine multishelled NiO hollow spheres, implying the potential application in modern science and technology.
Highlights
With the rapid development of the global economy, fast depletion of nonrenewable energy, and the increasing environmental problems, it is urgent to develop new clean and sustainable sources and technologies for energy storage and conversion with high efficiency [1,2,3]
As one of the special structures of carbon, graphene has initiated enormous scientific activities, with the honeycomb lattice structure, unique structural features of chemical stability, high surface area, flexibility, and superior electric and thermal conductivity. It has been used as ideal building blocks for energy storage systems with improved electrochemical properties compared with these host materials, such as metal, metal oxide, and sulfide [4, 5]
We report the solvothermal method for the synthesis of multishelled Nickel oxide (NiO) hollow spheres/graphene nanosheets (GNS) nanocomposite, in which the multishelled NiO hollow spheres are wrapped by GNS
Summary
With the rapid development of the global economy, fast depletion of nonrenewable energy, and the increasing environmental problems, it is urgent to develop new clean and sustainable sources and technologies for energy storage and conversion with high efficiency [1,2,3]. As one of the special structures of carbon, graphene has initiated enormous scientific activities, with the honeycomb lattice structure, unique structural features of chemical stability, high surface area, flexibility, and superior electric and thermal conductivity. It has been used as ideal building blocks for energy storage systems with improved electrochemical properties compared with these host materials, such as metal, metal oxide, and sulfide [4, 5]. We report the solvothermal method for the synthesis of multishelled NiO hollow spheres/GNS nanocomposite, in which the multishelled NiO hollow spheres are wrapped by GNS This hybrid architecture is found to display much improved electrochemical properties by comparison to that of pristine multishelled NiO hollow microspheres
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
