scholarly journals Graphitized Carbon Xerogels for Lithium-Ion Batteries

Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 119 ◽  
Author(s):  
Maria Canal-Rodríguez ◽  
Ana Arenillas ◽  
Sara F. Villanueva ◽  
Miguel A. Montes-Morán ◽  
J. Angel Menénedez
Keyword(s):  
Graphene Oxide ◽  
Pore Structure ◽  
Lithium Ion Batteries ◽  
Marked Effect ◽  
Lithium Ion ◽  
Carbon Xerogel ◽  
Remarkable Increase ◽  
Graphitized Carbon ◽  
Carbon Xerogels ◽  
Degree Of Graphitization

Carbon xerogels with different macropore sizes and degrees of graphitization were evaluated as electrodes in lithium-ion batteries. It was found that pore structure of the xerogels has a marked effect on the degree of graphitization of the final carbons. Moreover, the incorporation of graphene oxide to the polymeric structure of the carbon xerogels also leads to a change in their carbonaceous structure and to a remarkable increase in the graphitic phase of the samples studied. The sample with the highest degree of graphitization (i.e., hybrid graphene-carbon xerogel) displayed the highest capacity and stability over 100 cycles, with values even higher than those of the commercial graphite SLP50 used as reference.

scholarly journals In-situ synthesis of Fe2O3/rGO using different hydrothermal methods as anode materials for lithium-ion batteries

2020 ◽  
Vol 59 (1) ◽  
pp. 477-487 ◽  
Author(s):  
Zhuang Liu ◽  
Haiyang Fu ◽  
Bo Gao ◽  
Yixuan Wang ◽  
Kui Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oleic Acid ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Anode Materials ◽  
Lithium Ion ◽  
In Situ Synthesis ◽  
Cycle Performance ◽  
Reduced Graphene

AbstractThis paper studies in-situ synthesis of Fe2O3/reduced graphene oxide (rGO) anode materials by different hydrothermal process.Scanning Electron Microscopy (SEM) analysis has found that different processes can control the morphology of graphene and Fe2O3. The morphologies of Fe2O3 prepared by the hydrothermal in-situ and oleic acid-assisted hydrothermal in-situ methods are mainly composed of fine spheres, while PVP assists The thermal in-situ law presents porous ellipsoids. Graphene exhibits typical folds and small lumps. X-ray diffraction analysis (XRD) analysis results show that Fe2O3/reduced graphene oxide (rGO) is generated in different ways. Also, the material has good crystallinity, and the crystal form of the iron oxide has not been changed after adding GO. It has been reduced, and a characteristic peak appears around 25°, indicating that a large amount of reduced graphene exists. The results of the electrochemical performance tests have found that the active materials prepared in different processes have different effects on the cycle performance of lithium ion batteries. By comprehensive comparison for these three processes, the electro-chemical performance of the Fe2O3/rGO prepared by the oleic acid-assisted hydrothermal method is best.

Two-dimensional hybrid nanosheets of few layered MoSe2 on reduced graphene oxide as anodes for long-cycle-life lithium-ion batteries

2016 ◽  
Vol 4 (40) ◽  
pp. 15302-15308 ◽  
Author(s):  
Zhigao Luo ◽  
Jiang Zhou ◽  
Lirong Wang ◽  
Guozhao Fang ◽  
Anqiang Pan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Lithium Ion ◽  
Cycle Life ◽  
Two Dimensional ◽  
Long Cycle Life ◽  
Excellent Electrochemical Performance ◽  
Reduced Graphene

We report the synthesis of a novel 2D hybrid nanosheet constructed by few layered MoSe2 grown on reduced graphene oxide (rGO), which exhibits excellent electrochemical performance as anodes for lithium ion batteries.

Janus Graphene Oxide Sheets with Fe3O4 Nanoparticles and Polydopamine as Anodes for Lithium-Ion Batteries

2021 ◽  
Vol 13 (12) ◽  
pp. 14786-14795
Author(s):  
Jiwon Jang ◽  
Seok Hyun Song ◽  
Hyeri Kim ◽  
Junsoo Moon ◽  
Hyungju Ahn ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Fe3o4 Nanoparticles ◽  
Lithium Ion ◽  
Graphene Oxide Sheets

Development of Silicon-Graphite-Reduced Graphene Oxide Anode for Lithium-Ion Batteries

2021 ◽  
Vol MA2021-02 (4) ◽  
pp. 511-511
Author(s):  
Ketsuda Kongsawatvoragul ◽  
Worapol Tejangkura ◽  
Chonticha Jangsan ◽  
Pattranit Kullawattanapokin ◽  
Poramane Chiochan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Lithium Ion ◽  
Reduced Graphene ◽  
Oxide Anode
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