Alkali-Metal-Ion-Functionalized Graphene Oxide as a Superior Anode Material for Sodium-Ion Batteries

2016 ◽  
Vol 22 (24) ◽  
pp. 8152-8157 ◽  
Author(s):  
Fang Wan ◽  
Yu-Han Li ◽  
Dai-Huo Liu ◽  
Jin-Zhi Guo ◽  
Hai-Zhu Sun ◽  
...  
2019 ◽  
Vol 716 ◽  
pp. 171-176 ◽  
Author(s):  
Siying Wen ◽  
Jiachang Zhao ◽  
Yu Zhao ◽  
Tingting Xu ◽  
Jingli Xu

2019 ◽  
Vol 21 (33) ◽  
pp. 18328-18337 ◽  
Author(s):  
Nabil Khossossi ◽  
Amitava Banerjee ◽  
Younes Benhouria ◽  
Ismail Essaoudi ◽  
Abdelmajid Ainane ◽  
...  

The selection of a suitable two dimensional anode material is one of the key steps in the development of alkali metal ion batteries to achieve superior performance with an ultrahigh rate of charging/discharging capability.


Materials ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1074 ◽  
Author(s):  
Pier Paolo Prosini ◽  
Maria Carewska ◽  
Cinzia Cento ◽  
Gabriele Tarquini ◽  
Fabio Maroni ◽  
...  

A tin-decorated reduced graphene oxide, originally developed for lithium-ion batteries, has been investigated as an anode in sodium-ion batteries. The composite has been synthetized through microwave reduction of poly acrylic acid functionalized graphene oxide and a tin oxide organic precursor. The final product morphology reveals a composite in which Sn and SnO2 nanoparticles are homogenously distributed into the reduced graphene oxide matrix. The XRD confirms the initial simultaneous presence of Sn and SnO2 particles. SnRGO electrodes, prepared using Super-P carbon as conducting additive and Pattex PL50 as aqueous binder, were investigated in a sodium metal cell. The Sn-RGO showed a high irreversible first cycle capacity: only 52% of the first cycle discharge capacity was recovered in the following charge cycle. After three cycles, a stable SEI layer was developed and the cell began to work reversibly: the practical reversible capability of the material was 170 mA·h·g−1. Subsequently, a material of formula NaLi0.2Ni0.25Mn0.75O was synthesized by solid-state chemistry. It was found that the cathode showed a high degree of crystallization with hexagonal P2-structure, space group P63/mmc. The material was electrochemically characterized in sodium cell: the discharge-specific capacity increased with cycling, reaching at the end of the fifth cycle a capacity of 82 mA·h·g−1. After testing as a secondary cathode in a sodium metal cell, NaLi0.2Ni0.25Mn0.75O was coupled with SnRGO anode to form a sodium-ion cell. The electrochemical characterization allowed confirmation that the battery was able to reversibly cycle sodium ions. The cell’s power response was evaluated by discharging the SIB at different rates. At the lower discharge rate, the anode capacity approached the rated value (170 mA·h·g−1). By increasing the discharge current, the capacity decreased but the decline was not so pronounced: the anode discharged about 80% of the rated capacity at 1 C rate and more than 50% at 5 C rate.


RSC Advances ◽  
2017 ◽  
Vol 7 (87) ◽  
pp. 55060-55066 ◽  
Author(s):  
Jianwei Li ◽  
Xifei Li ◽  
Dongbin Xiong ◽  
Youchen Hao ◽  
Huari Kou ◽  
...  

It is reported for the first time that iodine-doped reduced graphene oxide (I-rGO) has been designed as an anode material for sodium ion batteries (SIBs).


2017 ◽  
Vol 258 ◽  
pp. 582-590 ◽  
Author(s):  
Feng Li ◽  
Xiaobiao Liu ◽  
Junru Wang ◽  
Xiaoming Zhang ◽  
Bo Yang ◽  
...  

2018 ◽  
Vol 1 (1) ◽  
pp. 228-235
Author(s):  
Pramanand Kumar ◽  
Chandramika Bora ◽  
Pradip K. Sukul ◽  
Subrata Das

Chemical and biological sensors are gaining wide popularity in day-to-day life and significantly help to increase the survivability by providing early warning for explosives, metal pollutant, and chemical warfare. GR analog based sensor devices have several advantages for chemical and biological sensing. The structural or chemical modifications of GR remarkably improve the properties of such device applications. Keeping this in mind, we have designed and synthesized pyrimidinedione-functionalized graphene oxide (FGO) and functionalized graphene (FG) sequentially. Synthesis of the hybrid materials was done using the simple hydrothermal method. The materials were characterized by various spectroscopic and analytical techniques. XRD study showed formation of well exfoliated GO sheets in the composite. FTIR data indicates the formation of GO-NO-Ur composites. Density functional theory (DFT) calculation was also investigated to understand the various non-covalent interactions of the NO-Ur and FGO. For the detection of metal ions, synthesized nanocomposite was analyzed to sense many metal ions (Ag+, Cd2+, Cu2+, Fe3+, Hg2+, Mo2+, Ni2+, and Zn2+) and we observed strong binding mood against Fe3+ ions having LOD and LOQ value of 0.0032 μM and 0.01 μM respectively.


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