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High-Throughput and Scalable Exfoliation of Large-Sized

The 2D materials exhibit numerous technological applications, but their scalable production is a core challenge. Herein, ball milling exfoliation in supercritical carbon dioxide …

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High-Throughput and Scalable Exfoliation of …

The 2D materials exhibit numerous technological applications, but their scalable production is a core challenge. Herein, ball milling exfoliation in supercritical carbon dioxide (scCO 2) and …

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Ball-Milling-Triggered Synthesis of …

The excessive emission of carbon dioxide (CO 2) poses a serious threat to the sustainable development of human beings.The efficient conversion of CO 2 into high-value-added chemicals is of great …

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Carbon dioxide storage in olivine basalts: Effect of ball milling

Although the increase of CO2 uptake after ball milling for the basalt under study here is not proportional with the increase of its specific surface area, the enhancement of its CO2-storage capacity by 295% (per gram basis) can be considered of great significance. Additionally, it should be mentioned that the unmilled olivine basalt shows ...

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Top-down approach using supercritical carbon dioxide ball milling …

The milling of Bi 2 Te 3 in supercritical carbon dioxide is shown to be conclusively superior to conventional milling, overcoming the minimum steady state saturation size reported for conventional ball milling. 13) XPS analysis shows that scCO 2 milling also results in a significantly lower degree of surface oxidation as compared to ...

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Capture of CO2 on γ-Al2O3 materials prepared by …

Table 1 show the ball-milling conditions for an experi-mental setup to make the particles. The samples were also milled in all cases using a Spex 8000 vibrating high-energy ball mill for different milling reaction times (1 to 10 hr), and finally, the structures of the ball-milled powders were characterized at the various stages during milling.

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Journal of CO2 Utilization

Scalable fabrication of nanoporous copper powders through ball milling and dealloying. • Nanoporous copper powder catalysts for electrochemical CO 2 reduction in a commercially relevant MEA electrolyzer.. Peak ethylene Faradaic efficiency of 34% at 75-100 mA/cm 2 with a hydrogen Faradaic efficiency below 30%.. Bridges the gap between …

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High energy ball milling and supercritical carbon dioxide …

Both ball-milling and supercritical carbon dioxide impregnation (ScCO2) have been used to prepare TDF/Soluplus® SD formulations (Krupa et al., 2016). The drug dissolution rates increased by up to 90% (to 9 μg/mL) compared with that of TDF alone in simulated gastric fluid containing sodium lauryl sulfate (SLS) (0.1%, w/v).

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Carbon dioxide storage in olivine basalts: Effect of ball milling

DOI: 10.1016/J.POWTEC.2014.12.046 Corpus ID: 95755269; Carbon dioxide storage in olivine basalts: Effect of ball milling process @article{Rigopoulos2015CarbonDS, title={Carbon dioxide storage in olivine basalts: Effect of ball milling process}, author={Ioannis Rigopoulos and Klito C Petallidou and Michalis …

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Decomposition of carbon dioxide using mechanically-milled …

In recent years, various studies have been reported on decomposition of carbon dioxide into carbon using iron oxide.This study investigates the ability of mechanically-milled magnetite powder to decompose carbon dioxide as well as the effect of mechanical milling on the crystal structure change. Mechanical milling was …

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Construction of carbonized polymer dots/potassium doped carbon …

The agate tank was attached to a high-energy ball milling device (MSK-SFM-3) for conducting a 30-min experiment at a revolution speed of 1200 rpm. After that, the mixtures obtained after ball milling were calcinated in the tubular furnace at 550 ℃ for 4 h under Ar condition. ... of CPDs compared to that of KCNNS (–0.76 eV) and E …

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The influence of HKUST-1 and MOF-76 hand …

The study precisely examined changes in particle size, structural characteristics, porosity, and carbon dioxide adsorption capacities resulting from different milling conditions, the effect of ...

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CO2 storage and conversion to CH4 by wet

Carbon Dioxide gas was provided by Linde (5.0). For wet milling runs, olivine powders (2 g) and deionized water (0.3 mL) were placed in the milling chamber. The mixture was ball milled under. Structural modifications of olivine after wet milling in …

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Effect of Ball-Milling on the Oxygen Reduction …

Iron- and nitrogen-doped carbon-based catalysts are one of the most promising alternatives to platinum-group metal-based ones currently used in the fuel cell industry. Here, we study the effect of ball …

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Carbon dioxide storage in olivine basalts: Effect of ball milling

Carbon dioxide is a significant component of the Earth's atmosphere, which has also a determinative role in the greenhouse effect. ... The basic concept of this study is to accelerate the carbonation rate (or CO 2 uptake) of basaltic rocks via the ball milling process. It has been demonstrated that long milling can improve the performance of …

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Insight into the energy conversion and structural evolution …

In this work, a planetary ball-mill is used for MgH 2 synthesis to understand the energy conversion and structural evolution of Mg under H 2 atmosphere. For the planetary ball-mill, all the vials rotate reversely at two times speed to the disc, as shown in Fig. S2 (supporting information). Milling speed of disc (angular velocity) should be …

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Reactive ball-milling synthesis of Co-Fe bimetallic catalyst …

Reactive ball milling can generate CoFe phase for efficient CO 2 activation, and promote in-situ structural evolution to Co 2 C and Fe 5 C 2 for C–C coupling reaction. ... Carbon dioxide hydrogenation into valuable chemicals is an attractive strategy for CO 2 fixation. Constructing bimetallic Fe-Co catalysts achieves high selectivity of heavy ...

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Ball-Milling-Triggered Synthesis of Si/C/SiC@MCMB …

The excessive emission of carbon dioxide (CO 2) poses a serious threat to the sustainable development of human beings.The efficient conversion of CO 2 into high-value-added chemicals is of great significance for solving the greenhouse effect and energy crisis. Herein, a new strategy is proposed to turn CO 2 into Si/C/SiC composites through …

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Tabletting solid dispersions of bicalutamide prepared using ball …

Tabletting solid dispersions of bicalutamide prepared using ball-milling or supercritical carbon dioxide: the interrelationship between phase transition and in-vitro dissolution Pharm Dev Technol. 2020 Nov ... while the treatment with supercritical carbon dioxide did not cause any phase transition as confirmed by X-ray diffractometry. Co ...

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Carbon dioxide absorption behavior of surface-modified …

Li 4 SiO 4 can also be applied in carbon dioxide capture storage (CCS) technology, ... Surface treatment by ball milling processing under an Ar atmosphere suppressed the CO 2 absorption reaction. The CO 2 absorption rate was improved by incorporating K 2 CO 3 into Li 4 SiO 4. This was because of the increased surface area and

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Stabilized CO2 capture performance of wet mechanically activated

The rapid loss-in-capacity in CO 2 capture is the major barrier to the application of abundantly available CaO-based natural minerals in calcium looping process. In this work, the mechanically activated method of wet ball-milling was tried to prepare highly efficient CO 2 sorbents from naturally occurring dolomite. Two major operation …

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Effects of ball milling on structural changes and hydrolysis …

Mechanical activation is an effective method for destroying the crystalline structure. Biomass, especially its hemicellulose, can be degraded in the green solvent of liquid hot-water compressed carbon dioxide. To improve the degradation of crystalline cellulose in liquid hot-water compressed carbon dioxide, pretreatment of camphorwood …

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Carbon dioxide storage in olivine basalts: Effect of ball …

Request PDF | On Mar 31, 2015, Ioannis Rigopoulos and others published Carbon dioxide storage in olivine basalts: Effect of ball milling process | Find, read and cite all the …

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Isolation of Cellulose Nanofibers (CNFs) based on Ball-milling

Here, a new pretreatment method has been developed to produce CNFs from micro-fibrillated cellulose (MFC) by supercritical CO 2 pretreatment followed with ball-milling (SCB). MFC was obtained from cotton stalk by chemical purification.Experimental factors were controlled to enhance the properties of SCB-CNF, meanwhile a …

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Carbon dioxide storage in olivine basalts: Effect of ball …

DOI: 10.1016/J.POWTEC.2014.12.046 Corpus ID: 95755269; Carbon dioxide storage in olivine basalts: Effect of ball milling process …

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Mechanochemical processing of silicate rocks to trap CO 2

Rigopoulos, I. et al. Carbon dioxide storage in olivine basalts: effect of ball milling process. Powder Technol. 273, 220–229 (2015). Article CAS Google Scholar

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Effect of ball milling activation on CO2 mineralization …

This paper used the mechanical ball milling method to activate fly ash and investigated the effects of ball milling time and speed on the CO 2 sequestration in fly ash. At 30 min ball milling time and 400 r/min ball milling speed, the modified fly ash achieves a good CO 2 sequestration capacity of 81.70 g CO2 /kg FA.