Preparation of graphene via wet ball milling and in situ

Functionalized graphene (G-MA) was prepared by a facile wet ball milling strategy, which achieved exfoliation and functionalization of graphite simultaneously. The G-MA showed excellent dispersion in water and polar solvents. Thus, a G-MA coating was prepared from G-MA in mixed solvents (H2O–ethanol) without

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Author: Jianfeng Xu, Xiaomin Zhao, Fei Xiang Liu, Lun Jin, Guohua Chen

Effect of ball milling time on graphene nanosheets

As for GNSs/Al composites, Bastwros et al. investigated the effect of graphene dispersion by shaker ball milling technique, their research showed that 10min and 30min ball milling times were not enough to homogeneously disperse the graphene into the Al6061 matrix, and an increasing strength would be achieved about 47% and 34% for 60min and

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Cited by: 15

Ball Milling an overview ScienceDirect Topics

Ball milling of graphite with appropriate stabilizers is another mode of exfoliation in liquid phase. 21 Graphite is ground under high sheer rates with millimeter-sized metal balls causing exfoliation to graphene (Fig. 2.5), under wet or dry conditions.For instance, this method can be employed to produce nearly 50 g of graphene in the absence of any oxidant. 22 Graphite (50 g) was ground in

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Edge-carboxylated graphene nanosheets via ball milling

Apr 10, 2012Thus, the ball-milling technique developed in this study could be regarded as a general approach toward low-cost, high-yield production of edge-functionalized graphene (EFG) with various functional groups of practical significance for mass production of multifunctional materials and devices based on graphene materials.

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Cited by: 496

Edge-carboxylated graphene nanosheets via ball milling PNAS

Apr 10, 2012Low-cost, high-yield production of graphene nanosheets (GNs) is essential for practical applications. We have achieved high yield of edge-selectively carboxylated graphite (ECG) by a simple ball milling of pristine graphite in the presence of dry ice. The resultant ECG is highly dispersable in various solvents to self-exfoliate into single- and few-layer (≤ 5 layers) GNs.

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Cited by: 496

Sulfur–Graphene Nanostructured Cathodes via Ball-Milling

Functionalized graphene nanoplatelets from ball milling for energy applications. Current Opinion in Chemical Engineering 2016, 11, 52-58. DOI: 10.1016/j.coche.2016.01.003. Wei Guo, Xiu Li, Jiantie Xu, Hua Kun Liu, Jianmin Ma, Shi Xue Dou. Growth of Highly Nitrogen-Doped Amorphous Carbon for Lithium-ion Battery Anode.

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Cited by: 149

Exfoliation of graphene sheets via high energy wet milling

Mechanical milling has been employed for producing graphene via different ways that include the production of colloidal dispersion of graphene in organic solvent,the synthesis of functionalized graphene nanoplatelets by mechanochemical milling,the production of graphene through ball milling of graphite with oxalic acid dihydrate,the

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Cited by: 15

One-step preparation of graphene nanosheets via ball

Jan 06, 2016An improved method for mass production of good-quality graphene nanosheets (GNs) via ball milling pristine graphite with dry ice is presented. We also report the enhanced performance of these GNs as working electrode in lithium-ion batteries (LIBs). In this improved method, the decrease of necessary ball milling time from 48 to 24 h and the increase of Brunauer–Emmett–Teller surface area

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Cited by: 20

Use of high energy ball milling to study the role of

Oct 15, 2015The mechanical agitated composite powders (with 0.3 wt.% graphene nanoplatelets and carbon nanotubes) before and after ball milling process are shown in Fig. 1. Fig. 1(a) and (b) shows un-milled carbon nanotubes and graphene nanoplatelets reinforced composite powders just after mechanical agitation process.It can be observed that magnesium powder is irregular in shape with

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Cited by: 63

Ultrahigh Conductive Graphene Paper Based on Ball‐Milling

Mar 29, 2017First, large‐volume, high‐concentration, plane‐defect‐free, few‐layer graphene dispersion is fast produced from graphite at high yield through ball milling. The exfoliated graphene dispersion is further processed into graphene stone through fast filtration,

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Cited by: 105

Ultrahigh Conductive Graphene Paper Based on Ball-Milling

May 04, 2017The large-volume, high-concentration, plane-defect-free, few-layer graphene dispersion is fast produced at high yield through wet ball milling, which is further processed into graphene

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作者: Advanced Science News

Exfoliation of Graphite with Triazine Derivatives under

A ball-milling treatment can be employed to exfoliate graphite through interactions with commercially available melamine under solid conditions. This procedure allows the fast production of relatively large quantities of material with a low presence of defects. The milling treatment can be modulated in order to achieve graphene flakes with different sizes.

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Effect of ball-milling and graphene contents on the

Graphene is uniformly dispersed into copper matrix after ball-milling and the structure of graphene is relatively complete. • Graphene contents significantly affect mechanical properties and fracture mechanisms of the composites. • The UTS and δ of the composites increase initially and decrease later with increasing the graphene contents.

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Ultrahigh Conductive Graphene Paper Based on Ball‐Milling

Mar 29, 2017First, large‐volume, high‐concentration, plane‐defect‐free, few‐layer graphene dispersion is fast produced from graphite at high yield through ball milling. The exfoliated graphene dispersion is further processed into graphene stone through fast filtration,

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Large-Scale Production of Edge-Selectively Functionalized

Edge-selectively functionalized graphene nanoplatelets (EFGnPs) with different functional groups were efficiently prepared simply by dry ball milling graphite in the presence of hydrogen, carbon dioxide, sulfur trioxide, or carbon dioxide/sulfur trioxide mixture. Upon exposure to air moisture, the resultant hydrogen- (HGnP), carboxylic acid- (CGnP), sulfonic acid- (SGnP), and carboxylic acid

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Graphene balls for lithium rechargeable batteries with

Nov 16, 2017Xu, J. et al. Edge‐selectively halogenated graphene nanoplatelets (XGnPs, X = Cl, Br, or I) prepared by ball‐milling and used as anode materials for lithium‐ion batteries. Adv. Mater. 26

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Nitrogen-doped graphene by ball-milling graphite with

paration of N-doped graphene by ball-milling gra-phite with N-containing organic compounds has not beenpreviouslyreported. Resultsanddiscussion Scheme 1(a) schematically shows the preparation procedure for producing N-doped graphene by ball-milling graphite with melamine. In a typical experi-ment, graphite was mixed with melamine at a weight

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Preparation of graphene via wet ball milling and in situ

Functionalized graphene (G-MA) was prepared by a facile wet ball milling strategy, which achieved exfoliation and functionalization of graphite simultaneously. The G-MA showed excellent dispersion in water and polar solvents. Thus, a G-MA coating was prepared from G-MA in mixed solvents (H2O–ethanol) without

get price

Few-layer graphenes from ball-milling of graphite with

We report a simple, practical scalable procedure to produce few-layer graphene sheets using ball-milling. Commercially available melamine can be efficiently used to exfoliate graphite and generate concentrated water or DMF dispersions.

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Exfoliation of graphite by dry ball milling with cellulose

Dry ball milling of graphite with cellulose and related polysaccharides was found effective for exfoliation-dispersion of graphene-like carbon.

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Nitrogen-doped graphene by ball-milling graphite with

N-doped graphene was prepared by ball milling of graphite with melamine. It was found that ball-milling reduced the size of graphite particles from 30 to 1 μm and facilitated the exfoliation of the resultant small particles into few-layer N-doped graphene nanosheets under ultrasonication.The as-prepared N-doped graphene nanoplatelets (NGnPs) exhibited a nitrogen content as high as 11.4 at

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One-Step Ball-Milling Preparation of Highly Photocatalytic

We prepared CoFe 2 O 4 –RGO (RGO: reduced graphene oxide) composites by ball-milling without using toxic chemical reagents and high-temperature heat treatment. The exfoliation and reduction of graphite oxide and anchoring of CoFe 2 O 4 nanoparticles on graphene sheets were accomplished in one step. The microstructure of the heterophotocatalyst was characterized by X-ray diffraction, Fourier

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High-Efficient Production of Boron Scientific Reports

Ball size effect. The effect of ball size (1.0, 0.6–0.8 and 0.1–0.2 mm) on the extent of exfoliation was also studied by keeping other milling parameters the same (milling time of 10 h, ball

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[email protected]/Graphene Nanosheets Composite: Ball Milling

During ball milling process, the size of Si nanoparticles will decrease, and the layer of EG can be peeled off to thin multilayers. Electrochemical tests reveal that the [email protected]/GNS nanocomposites show enhanced cycling stability, high reversible capacity, and rate capability, even with high content of active materials of 80% and without

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Exfoliation of graphite by dry ball milling with cellulose

Dry ball milling of graphite with cellulose and related polysaccharides was found effective for exfoliation-dispersion of graphene-like carbon.

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Nitrogen-doped graphene by ball-milling graphite with

N-doped graphene was prepared by ball milling of graphite with melamine. It was found that ball-milling reduced the size of graphite particles from 30 to 1 μm and facilitated the exfoliation of the resultant small particles into few-layer N-doped graphene nanosheets under ultrasonication.The as-prepared N-doped graphene nanoplatelets (NGnPs) exhibited a nitrogen content as high as 11.4 at

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One-Step Ball-Milling Preparation of Highly Photocatalytic

We prepared CoFe 2 O 4 –RGO (RGO: reduced graphene oxide) composites by ball-milling without using toxic chemical reagents and high-temperature heat treatment. The exfoliation and reduction of graphite oxide and anchoring of CoFe 2 O 4 nanoparticles on graphene sheets were accomplished in one step. The microstructure of the heterophotocatalyst was characterized by X-ray diffraction, Fourier

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High-Efficient Production of Boron Scientific Reports

Ball size effect. The effect of ball size (1.0, 0.6–0.8 and 0.1–0.2 mm) on the extent of exfoliation was also studied by keeping other milling parameters the same (milling time of 10 h, ball

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[email protected]/Graphene Nanosheets Composite: Ball Milling

During ball milling process, the size of Si nanoparticles will decrease, and the layer of EG can be peeled off to thin multilayers. Electrochemical tests reveal that the [email protected]/GNS nanocomposites show enhanced cycling stability, high reversible capacity, and rate capability, even with high content of active materials of 80% and without

get price

Edge-carboxylated graphene nanosheets via ball milling

Edge-carboxylated graphene nanosheets via ball milling In-Yup Jeona, Yeon-Ran Shina, Gyung-Joo Sohna, Hyun-Jung Choia, Seo-Yoon Baea, Javeed Mahmooda, Sun-Min Junga, Jeong-Min Seoa, Min-Jung Kima, Dong Wook Changa,b, mpl Daia,c,1, and Jong-Beom Baeka,1 aInterdisciplinary School of Green Energy/Low-dimensional Carbon Materials Center, Ulsan National Institute of Science and

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Synthesis of Nanomaterials by High Energy Ball Milling

For all nanocrystalline materials prepared by high-energy ball milling synthesis route, surface and interface contamination is a major concern. In particular, mechanical attributed contamination by the milling tools (Fe or WC) as well as ambient gas (trace impurities such as O 2, N 2 in rare gases) can be problems for high-energy ball milling

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Sulfur-Graphene Nanostructured Cathodes via Ball-Milling

In particular, by ball-milling of graphite in the presence of sulfur it was demonstrated that sulfur could edgeselectively functionalize graphene nanoplatelets with a concomitant homogeneous

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Ball‐Mill‐Exfoliated Graphene: Tunable Electrochemistry

Apr 17, 2019Variation of the ball‐milling time is an efficient way to control the size and thickness of graphene nanosheets, as well as the level of edge defects. With an increase of ball‐milling time, superior electrochemical reactivity is imparted owing to enlarged active area

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Functionalized for energy applications

graphene materials by ball milling and their applications in energy conversion and storage Functionalized milling graphene nanoplatelets by ball Ball edge-functionalized milling is a simple but efficient approach for produc-graphene nanoplatelets. In a typical experiment, graphite powders are mixed with chemicals trioxide

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Fabrication of in-situ grown graphene reinforced Cu matrix

Jan 14, 2016Graphene/Cu composites were fabricated through a graphene in-situ grown approach, which involved ball-milling of Cu powders with PMMA as solid carbon source, in-situ growth of graphene on flaky Cu

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Nitrogen-doped graphene by ball-milling graphite with

paration of N-doped graphene by ball-milling gra-phite with N-containing organic compounds has not beenpreviouslyreported. Resultsanddiscussion Scheme 1(a) schematically shows the preparation procedure for producing N-doped graphene by ball-milling graphite with melamine. In a typical experi-ment, graphite was mixed with melamine at a weight

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Preparation of graphene by exfoliation of graphite using

Although there were many reports about large-scale production of graphene or amorphous graphite from graphite via ball milling (45) (46)(47)(48)(49), it was the first time to find that the formed

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189 questions with answers in BALL MILLING Science topic

Mar 25, 2020Dear All, I am facing a problem during ball milling that the Pure aluminum with 15 % Alumina by volume reinforcement is becoming reactive in open air after 24 hours of ball milling.

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