Multilayer NiO@Co3O4@graphene quantum dots hollow spheres for high-performance lithium-ion batteries and supercapacitors

• Published in: Journal of materials chemistry. A, Materials for energy and sustainability Vol. 7; no. 13; pp. 7800 - 7814
• Main Authors: Yin, Xiaojie, Chuanwei Zhi, Sun, Weiwei, Li-Ping, Lv, Wang, Yong
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 2019
• Subjects: anodes; Batteries; Capacitance; cathodes; Chemical reactions; cobalt oxide; Cobalt oxides; Digital imaging; Electrochemistry; energy density; Flux density; Graphene; Hybrid structures; Lithium; lithium batteries; Lithium-ion batteries; Multilayers; nickel oxide; Nickel oxides; Polarity; potassium; Quantum dots; Rechargeable batteries; Supercapacitors; surface area

In the present study, we designed and prepared multilayer NiO@Co3O4 hollow spheres decorated with graphene quantum dots (NiO@Co3O4@GQDs) through a rational solvothermal treatment. The decoration of the GQDs endowed the hybrid structure with excellent electrochemical behaviors in lithium-ion batterie...