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This study investigates the electrochemical properties of ball-milled copper hexacyanoferrate (CuHCF), a Prussian blue analogue, as a cathode material in aqueous calcium-ion batteries (CIBs). X-ray diffraction analysis confirmed that the ball milling process did not destroy the crystal structure of the CuHCF active material. The general grain size and crystal surface of …
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Novel biochar was prepared by ball milling using bamboo as raw material. The aim of this study was to find a good alternative way to improve the potentials of biochar for ammonium adsorption from aqueous solution. The sorption performance of ball-milled bamboo biochar (BMBB) was compared with that of bamboo biochar (BB) using batch adsorption …
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A novel ball milled Fe0-biochar composite was synthesized by ball milling the mixture of biochar (pyrolyzed at 300 °C, 500 °C, and 700 °C) and micron grade iron powder. FTIR, SEM, TEM-EDS, XRD, and XPS were applied to characterize this composite. XRD results showed that iron carbide phase was formed during the ball milling process. The ability of this synthesized composited …
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After 4 h of ball milling, the wood powder was completely dissolved in 6 wt% NaOH aqueous solution under vigorous magnetic stirring for 10 to 20 min at room temperature. The alkaline nitrobenzene oxidation products yield of 4 h ball-milled wood was very close to that of coarse wood meal without ball milling.
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A Fritsch planetary ball milling machine, Pulverisette 7 Premium line has been utilized to mix the powders. WC-Co vials and balls were employed to avoid contamination. For each milling, the ball-to-powder ratio was kept constant at 4:1 and the milling time was set at 6 h (three separated steps of 2 h effective milling each) .
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A ball-milling approach was developed to investigate the constituents of isolated nacre tablets of the gastropod Haliotis glabra in aqueous suspension without additional chemical additives. The obtained particle mixtures were characterized using X-ray crystallography as well as scanning and transmission electron microscopy.
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crystalline cotton-derived cellulose in aqueous environment led to the crystalline transformation of cellulose I into the cellulose II polymorph.24 Ball milling was performed, in this case, in the presence of 30–50% water in a planetary equipment at 400 rpm for 2 hours. Further studies on the effect of ball milling on the
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With ball milling, ultrafine powder formed an amorphous microstructure and displayed a level of solubilization in aqueous NaOH higher than that of general ground samples. Alkali-treated ultrafine powder resulted in up to 93.76% removal of hemicellulose and 86.14% removal of lignin, whereas cellulose remains largely undissolved.
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12%Aqueous swelling pretreatment of cellulose was found highly effective for reactive ball milling to prepare surface-esterified cellulose nanofibers. Compared with starting from dry cellulose, water- or 2 % NaOH-pre-swollen materials were esterified and dispersed in significantly shorter milling time.
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We're experts in attrition milling and ball milling, and have experience in mechanical alloying for ODS (oxide dispersion strengthened) applications. ... with data logging. As a result, temperature, speed, and atmosphere can be tightly controlled and recorded. We use non-aqueous, aqueous, and dry processing methods, as well as grinding/sizing ...
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The ball milling modification and dispersion effects for ATP was the best. The contact angle of the resulting ATP was increased by 189%, its specific surface area was increased by 218%, and the volume of the bundles and the sedimentation rate were decreased. ... [10] Yuehua D et al 2013 Selective removal of lead from aqueous solutions by ...
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One-pot ball-milling preparation of graphene/carbon black aqueous inks for highly conductive and flexible printed electronics Xiao Yang1,2, Xiao-Ming Li1, Qing-Qiang Kong1,2, Zhuo Liu1, Jing-Peng Chen1,2, Hui Jia1,2, Yan-Zhen Liu1, Li-Jing Xie1 and Cheng-Meng Chen1* ABSTRACT Stable aqueous carbon inks, with graphene
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Ball milling – a new concept for predicting degradation profiles in active pharmaceutical ingredients ... Available prediction methods in aqueous environments result in high failure rates as non-relevant degradants may be formed resulting in high development risk for the manufacturer of new drugs and for the patient.
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Ball milling increased the mesopores and macropores of the nanocomposites by breaking biochar and squeezing ZnO. The addition of appropriate amount of ZnO into biochar enhanced both the adsorption capacity and photocatalytic ability of the nanocomposites for methylene blue () removal. When the initial concentration of was 160 mg/g, the ...
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This technology, first developed by Liversidge and co-workers,, is a classical wet milling technique wherein a sufficiently concentrated dispersion of drug particles in an aqueous or non-aqueous liquid medium is subjected to a traditional ball milling operation, . The liquid medium prevents adhesion and subsequent compaction of the milled ...
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Stereoselective addition of nitromethane to conjugated en-ynones was performed through the application of chiral squaramides. Three non-classical approaches to promote the addition reaction were tested, including activation of the nucleophile by inorganic base in a biphasic aqueous system, thermal activation, and ball-milling.
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It has been reported that the specific surface area of biochar increased from 3m2/g to 25194m2/g after ball milling, depending upon the milling method used [25]. Nevertheless, there is little or no information on the effects of ball milling on biochar removal of aqueous contaminants, particularly organic dyes.
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