Intercalated reduced graphene oxide and its content effect on the supercapacitance performance of the three dimensional flower-like β-Ni(OH)2 architecture

2017 ◽  
Vol 41 (18) ◽  
pp. 10467-10475 ◽  
Author(s):  
Nazish Parveen ◽  
Sajid Ali Ansari ◽  
S. G. Ansari ◽  
H. Fouad ◽  
Moo Hwan Cho

Anchoring of three dimensional (3D) metal oxides with a controlled morphology on a reduced graphene sheet (rGO) is a promising and challenging route towards the development of highly efficient electrode materials for supercapacitor applications.

2021 ◽  
Author(s):  
Kumaran Rengaswamy ◽  
vinaya kumar - asapu ◽  
Sundara Ramaprabhu ◽  
Subramanian Venkatachalam

The proliferation of wearable and portable electronic media increases the demand for developing highly efficient shielding materials to address the issue of electromagnetic interferences. This paper reports the development of...


2016 ◽  
Vol 8 (28) ◽  
pp. 18140-18149 ◽  
Author(s):  
Jian-Ping Zou ◽  
Hui-Long Liu ◽  
Jinming Luo ◽  
Qiu-Ju Xing ◽  
Hong-Mei Du ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Kaiqiang Zhang ◽  
Tae Hyung Lee ◽  
Joo Hwan Cha ◽  
Ho Won Jang ◽  
Ji-Won Choi ◽  
...  

Abstract The use of metal oxides as electrode materials has seen great success in lithium-ion batteries. However, this type of electrode materials has been regarded as an improper option for rechargeable aluminium-ion batteries (AIBs) in comparison with sulfides and selenides, and has, thus, been nearly abandoned. Here, we demonstrate the suitability of metal oxides as cathode materials of AIBs, exhibiting high electrochemical activities toward Al-ion storage. We designed economical metal-oxide cathodes (Co3O4@reduced graphene oxide (rGO), Fe2O3@rGO, and CoFe2O4@rGO) for AIBs. The Co3O4@rGO displayed superior electrochemical properties, regarding both capacity and lifespan, to the current state-of-the-art cathode material reported by scientific literature. Furthermore, the CoFe2O4@rGO exhibits rational electrochemical capacities and an extremely stable charge/discharge process with an excellent Coulombic efficiency of 99.6%. The proposed study expects to stimulate researchers to focus on the overlooked metal oxides as competitive cathode materials for high performance AIBs.


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