In-situ Conversion of Multiwalled Carbon Nanotubes to Graphene Nanosheets: An Increasing Capacity Anode for Li Ion Batteries

2017 ◽  
Vol 231 ◽  
pp. 255-263 ◽  
Author(s):  
Indu Elizabeth ◽  
Bhanu Pratap Singh ◽  
Thoyikkottu K. Bijoy ◽  
Venkata Rami Reddy ◽  
Gunasekaran Karthikeyan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Graphene Nanosheets ◽  
Li Ion Batteries ◽  
Multiwalled Carbon ◽  
Li Ion

The morphology controlled synthesis of 3D networking LiFePO4with multiwalled-carbon nanotubes for Li-ion batteries

CrystEngComm ◽  
2014 ◽  
Vol 16 (2) ◽  
pp. 260-269 ◽  
Author(s):  
Guohui Qin ◽  
Song Xue ◽  
Qianqian Ma ◽  
Chengyang Wang
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Controlled Synthesis ◽  
Li Ion Batteries ◽  
Multiwalled Carbon ◽  
Li Ion

SnO2 nanocrystals deposited on multiwalled carbon nanotubes with superior stability as anode material for Li-ion batteries

2011 ◽  
Vol 196 (20) ◽  
pp. 8701-8705 ◽  
Author(s):  
Jianguo Ren ◽  
Junbing Yang ◽  
Ali Abouimrane ◽  
Dapeng Wang ◽  
Khalil Amine
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Anode Material ◽  
Li Ion Batteries ◽  
Multiwalled Carbon ◽  
Sno2 Nanocrystals ◽  
Li Ion

Carbon nanotubes grown in situ on graphene nanosheets as superior anodes for Li-ion batteries

Nanoscale ◽  
2011 ◽  
Vol 3 (10) ◽  
pp. 4323 ◽  
Author(s):  
Shuangqiang Chen ◽  
Peng Chen ◽  
Yong Wang
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Nanosheets ◽  
Li Ion Batteries ◽  
Li Ion

Freestanding Flexible Si Nanoparticles–Multiwalled Carbon Nanotubes Composite Anodes for Li-Ion Batteries and Their Prelithiation by Stabilized Li Metal Powder

2016 ◽  
Vol 13 (1) ◽  
Author(s):  
K. Yao ◽  
R. Liang ◽  
J. P. Zheng
Keyword(s):  
Carbon Nanotubes ◽  
Metal Powder ◽  
Multiwalled Carbon Nanotubes ◽  
Discharge Process ◽  
Li Ion Batteries ◽  
Multiwalled Carbon ◽  
Conductive Additive ◽  
Si Nanoparticles ◽  
Li Ion ◽  
Composite Anodes

Freestanding flexible Si nanoparticles–multiwalled carbon nanotubes (SiNPs–MWNTs) composite paper anodes for Li-ion batteries (LIBs) have been prepared using a combination of ultrasonication and pressure filtration. No conductive additive, binder, or metal current collector is used. The SiNPs–MWNTs composite electrode material achieves first cycle specific discharge and charge capacities of 2298 and 1492 mAh/g, respectively. To address the first cycle irreversibility, stabilized Li metal powder (SLMP) has been utilized to prelithiate the composite anodes. As a result, the first cycle irreversible capacity loss is reduced from 806 to 28 mAh/g and the first cycle coulombic efficiency is increased from 65% to 98%. The relationship between different SLMP loadings and cell performance has been established to understand the prelithiation process of SLMP and to optimize the construction of Si-based cells. A cell containing the prelithiated anode is able to deliver charge capacity over 800 mAh/g without undergoing the initial discharge process, which enables the exploration of novel cathode materials.

Three-Dimensional Porous Si and SiO2 with In Situ Decorated Carbon Nanotubes As Anode Materials for Li-ion Batteries

2017 ◽  
Vol 9 (21) ◽  
pp. 17807-17813 ◽  
Author(s):  
Junming Su ◽  
Jiayue Zhao ◽  
Liangyu Li ◽  
Congcong Zhang ◽  
Chunguang Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Anode Materials ◽  
Three Dimensional ◽  
Li Ion Batteries ◽  
Porous Si ◽  
Li Ion

Multiwalled Carbon Nanotubes Covered with Cobalt (II) Phthalocyanine by In Situ Synthesis and its Electrochemical Sensing Performance towards DA and UA

2014 ◽  
Vol 809-810 ◽  
pp. 43-52
Author(s):  
Hua Hua Wang ◽  
Nan Li ◽  
Kai Li ◽  
Yuan Bu ◽  
Wen Le Dai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Photoelectron Spectroscopy ◽  
Simultaneous Detection ◽  
Thick Layer ◽  
Electrochemical Sensing ◽  
Multiwalled Carbon ◽  
X Ray ◽  
Platinum Particles

Multiwalled carbon nanotubes (MWCNTs) as an excellent supporter covered with a thick layer of cobalt phthalocyanine (CoPc) were prepared by in-situ synthesis. Platinum particles were adopted to enhance the conductivity of CoPc-MWCNTs. The final nanocomposite Pt-CoPc-MWCNTs was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). Strong aromatic π-π stacking between MWCNTs and CoPc made CoPc in-situ forming on MWCNTs. With homogeneous thickness of CoPc covered on the MWCNTs and Pt particles equally distributed, the nanocomposite was used as electrocatalyst. The electrochemical properties of the composite got researched by casting the dispersion of Pt-CoPc-MWCNTs on the glassy carbon electrode. Compared with other modified electrodes, Pt-CoPc-MWCNTs/GC electrode exhibited excellent electrochemical activity towards dopamine (DA) and uric acid (UA). Linear responses for DA and UA were obtained in the ranges of 5 to 170 μM and 5 to 100 μM, and limits of detection were 2.6 and 1.4 μM (S/N= 3), respectively. Simultaneous detection of DA and UA in the presence of ascorbic acid (AA) also displayed selective property, with no interference to each other.

scholarly journals Miniemulsion copolymerization of (meth)acrylates in the presence of functionalized multiwalled carbon nanotubes for reinforced coating applications

2017 ◽  
Vol 8 ◽  
pp. 1328-1337 ◽  
Author(s):  
Bertha T Pérez-Martínez ◽  
Lorena Farías-Cepeda ◽  
Víctor M Ovando-Medina ◽  
José M Asua ◽  
Lucero Rosales-Marines ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Miniemulsion Polymerization ◽  
Polymer Chains ◽  
Multiwalled Carbon ◽  
Neat Polymer ◽  
In Situ Composites ◽  
3D Network ◽  
Insoluble Polymer

Film forming, stable hybrid latexes made of methyl metacrylate (MMA), butyl acrylate (BA) and 2-hydroxyethyl methacrylate (HEMA) copolymer reinforced with modified multiwalled carbon nanotubes (MWCNTs) were synthesized by in situ miniemulsion polymerization. The MWCNTs were pretreated by an air sonication process and stabilized by polyvinylpyrrolidone. The presence of the MWCNTs had no significant effect on the polymerization kinetics, but strongly affected the polymer characteristics (T g and insoluble polymer fraction). The performance of the in situ composites was compared with that of the neat polymer dispersion as well as with those of the polymer/MWCNT physical blends. The in situ composites showed the presence of an additional phase likely due to the strong interaction between the polymer and MWNCTs (including grafting) that reduced the mobility of the polymer chains. As a result, a substantial increase of both the storage and the loss moduli was achieved. At 60 °C, which is above the main transition region of the polymer, the in situ composites maintained the reinforcement, whereas the blends behaved as a liquid-like material. This suggests the formation of a 3D network, in good agreement with the high content of insoluble polymer in the in situ composites.

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