• "Effects of Zn Doping and High Energy Ball Milling on the

    TiO2 photocatalysis is been widely studied for air and water purification applications titanium dioxide is the most used semiconductor principally because its low cost stability and chemical properties. However it only utilizes the UV portion of the solar spectrum as an energy source (less than 4 of the total sunlight energy). This behavior is due to its high band gap value of 3.2 eV.

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  • (PDF) Effect of ball-milling and Fe-/Al-doping on the

    Effect of ball-milling and Fe-/Al-doping on the structural aspect and visible light photocatalytic activity of TiO2 towards Escherichia coli bacteria abatement. Materials Science and Engineering C 2014. Bernard Hezard. Pierre Gilliot.

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  • Mechanothermal Approach for N- S- P- and B-Doping

     · Doping carbon materials by ball milling can become a potential route to produce low-cost materials avoid the use of solvents and the consequent release of wastes. Ammonium bicarbonate (NH4HCO3) can be used to introduce functional groups like amine or amide on the surface of CNTs by in-situ amino functionalization 36 . Ball milling of graphite

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  • N-doped biochar synthesized by a facile ball-milling

     · Ball milling uses the kinetic energy of moving balls to break chemical bonding and produce new surfaces by fracturing feedstock particles . To the best of the authors knowledge none of the previous studies has explored the use of ball-milling method in the synthesis of N-doped biochar.

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  • Preparation of Bi4Ti3O12 (BIT) Ceramics via a High

     · ball milling process 2) ceramics from the synthesized powder will also be presented 3) Electrical properties of BIT ceramics doping with multi walled carbon nanotube (MWNT) obtained via the CVD process. In addition we achieved a faster and a better way to synthesize the BIT orthorombicphase therefore we provided another step to

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  • Flux Pinning Optimization ofBulk Samples Prepared Using

     · Doping can i Flux Pinning Optimization ofBulk Samples Prepared Using High-Energy Ball Milling and Addition of IEEE Journals Magazine IEEE Xplore Skip to Main Content

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  • Novel Preparation of Fe Doped TiO2 Nanoparticles and Their

    The effect of the ball milling procedure on Fe doping in TiO 2 is systematically studied. H 2 gas sensor was fabricated using the prepared powder and sensing properties are studied. 2. Experimental Procedure. Iron doped TiO 2 nanoparticles were prepared by ball milling of TiO 2 powders (TiO 2 P25) in a high-energy ball mill in the presence of

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  • Effects of Zn Doping and High Energy Ball Milling on the

     · Effects of Zn Doping and High Energy Ball Milling on the Photocatalytic Properties of TiO2 Paula C. Algarin University of South Florida Follow this and additional works at https //scholarcommonsf.edu/etd Part of theAmerican Studies Commons

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  • Influence of Ball Milling Cold Rolling and Doping (Zr

     · In this paper we found that the first hydrogenation properties of TiFe alloy can be significantly improved by ball milling cold rolling and doping. The samples by ball milling for 60 min and doped with (Zr   2Cr) as additive showed a faster hydrogenation kinetics and the sample cold rolled for 5 passes showed the highest hydrogen capacity.

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  • Ball milling a green mechanochemical approach for

    Ball milling is a process in which the moving balls apply their kinetic energy to the milled material break chemical bonding and produce fresh surfaces by fracturing material particles. The dangling bonds on the newly created surfaces are usually chemically reactive.

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  • Ball milling a green mechanochemical approach for

    The proposed synthesis route by ball milling and annealing is an effective process for carbon nanoparticle production and efficient nitrogen doping providing a large-scale production method for the development of highly efficient and practical electrocatalysts. Electronic supplementary information (ESI) available Demonstration of mass

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  • Effect of gallium doping and ball milling process on the

    Effect of gallium doping and ball milling process on the thermoelectric performance of n-type ZnO. Journal of Materials Research 27 (17) . Identity. Digital Object Identifier (doi) 10.1557/jmr.2012.220 Scopus Eid . 2-s2. Web Of Science Accession Number . WOS Ro Full-text Url

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  • Lithium Thiosilicophosphate Glassy Solid Electrolytes

     · Due to the volatility of P2S5 the ambient pressure synthesis of Li2S P2S5 (LPS) has been limited to planetary ball-milling (PBM). To utilize PBM of LPS to generate a solid electrolyte (SE) the as-synthesized powder sample must be pressed into pellets and as such the presence of as-pressed grain boundaries in the SE cannot be avoided. To eliminate the grain boundaries LPS doped with

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  • Synergetic effects of edge formation and sulfur doping on

    An edge activated S doped Fe-N-graphene (EA-SFeNG) was successfully synthesized via facile ball milling followed by a pyrolysis process. The oxygen reduction reaction (ORR) performance of EA-SFeNG was dramatically improved by doping S and forming edge sites in Fe-N-graphene

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  • Novel Preparation of Fe Doped TiO2 Nanoparticles and Their

    The effect of the ball milling procedure on Fe doping in TiO 2 is systematically studied. H 2 gas sensor was fabricated using the prepared powder and sensing properties are studied. 2. Experimental Procedure. Iron doped TiO 2 nanoparticles were prepared by ball milling of TiO 2 powders (TiO 2 P25) in a high-energy ball mill in the presence of

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  • Effects of Zn Doping and High Energy Ball Milling on the

     · Ball Milling using a Tubular Reactor and a UV Light Irradiation.. 65 Figure 43 Apparent Rate Constant for Zn doped TiO 2 600C 3h Before and After Ball Milling using a Tubular Reactor and a UV Light Irradiation.. 65 Figure 44 XRD Spectra of TiO2 Zn Annealing at 500°C 3h After Ball Milling

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  • Al K Edge XANES Measurements in NaAlH4 Doped with TiCl3

     · Al K edge X-ray absorption spectroscopy has been applied to investigate pure sodium alanate and sodium alanate doped with 5 mol Ti on the basis of TiCl3 by ball milling. These first experimental data indicate that the chemical state of Al in NaAlH4 does not change upon cycling. It confirms also that the valence state of Al is higher than that of metallic Al in NaAlH4.

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  • Mechanothermal Approach for N- S- P- and B-Doping

     · Doping carbon materials by ball milling can become a potential route to produce low-cost materials avoid the use of solvents and the consequent release of wastes. Ammonium bicarbonate (NH4HCO3) can be used to introduce functional groups like amine or amide on the surface of CNTs by in-situ amino functionalization 36 . Ball milling of graphite

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  • Synergistic multi-doping effects on the Li 7 La 3 Zr 2 O

     · The whole precursor materials were weighed according to the stoichiometry and mixed by planetary ball-milling in isopropyl alcohol at 200 rpm for 10 h. No excess Li was added into the mixture.

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  • Effects of Ball Milling and Sintering on Alumina and

     · Reduction of crystallite size during high-energy ball milling is independent of boron composition in the range of compositions that were investigated. The lattice parameters of the main alumina phase as a function of milling time did not follow the same trends shown in literature indicating any impurities within the literature samples

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  • The Effect of Ball Milling and Fatty Acid Addition on the

     · Ball milling would be an effective method to improve the homogeneity of the wires and to reduce the grain size of the precursor powder. In this contribution we report on the combined effects of ball milling and oleic acid doping for Fe-sheathed mono-filamentary MgB 2 wires manufactured by the powder-in-tube (PIT) technique and in-situ reaction

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  • The Effect of Ball Milling and Fatty Acid Addition on the

     · Ball milling would be an effective method to improve the homogeneity of the wires and to reduce the grain size of the precursor powder. In this contribution we report on the combined effects of ball milling and oleic acid doping for Fe-sheathed mono-filamentary MgB 2 wires manufactured by the powder-in-tube (PIT) technique and in-situ reaction

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  • Ball milling a green mechanochemical approach for

     · The proposed synthesis route by ball milling and annealing is an effective process for carbon nanoparticle production and efficient nitrogen doping providing a large-scale production method for the development of highly efficient and practical electrocatalysts. Journal. NanoscaleRoyal Society of Chemistry. Published Jun 23 2013

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  • (PDF) Effect of ball-milling and Fe-/Al-doping on the

    Effect of ball-milling and Fe-/Al-doping on the structural aspect and visible light photocatalytic activity of TiO2 towards Escherichia coli bacteria abatement. Materials Science and Engineering C 2014. Bernard Hezard. Pierre Gilliot.

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  • Effect of ball-milling and Fe-/Al-doping on the structural

     · While doping elements are in interstitial positions within the rutile structure in MPT625 sample they are located at the surface in ball milled samples and in isolated octahedral units according to (57)Fe Möss spectrometry. The location of doping elements at the surface is suggested to be responsible for the sample cytotoxicity observed in

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  • Influence of Ball Milling Cold Rolling and Doping (Zr

    In this paper we found that the first hydrogenation properties of TiFe alloy can be significantly improved by ball milling cold rolling and doping. The samples by ball milling for 60 min and doped with (Zr 2Cr) as additive showed a faster hydrogenation kinetics and the sample cold rolled for 5 passes showed the highest hydrogen capacity.

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  • "Effects of Zn Doping and High Energy Ball Milling on the

    TiO2 photocatalysis is been widely studied for air and water purification applications titanium dioxide is the most used semiconductor principally because its low cost stability and chemical properties. However it only utilizes the UV portion of the solar spectrum as an energy source (less than 4 of the total sunlight energy). This behavior is due to its high band gap value of 3.2 eV.

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  • Effect of gallium doping and ball milling process on the

    Furthermore the Ga ZnO system showed a metal–semiconductor transition above 300 K with transition temperature decreasing with increasing doping level. Measurement of the activation energy revealed the presence of one donor level around 3.9–7.8 meV and a deeper donor level around 15.4–18.1 meV below the conduction band for the Ga-doped samples.

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  • Synthesis of iron-doped TiO nanoparticles by ball-milling

     · Table 1 Ball milling test conditions Sample Doping ratio Fe in TiO 2 (wt ) Rotation speed (rpm) Bare TiO 2 00 Undoped TiO 2 0 250 0 300 0 350 Fe-doped TiO 2 10 250 10 300 10 350 J Mater Sci (2014) 49 7476–7488 7477 123. of the photo-catalysts were estimated by applying the Debye–Scherrer equation 19 . The lattice parameters were

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  • Effects of Ball Milling and Sintering on Alumina and

     · Reduction of crystallite size during high-energy ball milling is independent of boron composition in the range of compositions that were investigated. The lattice parameters of the main alumina phase as a function of milling time did not follow the same trends shown in literature indicating any impurities within the literature samples

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  • ball milling dopingunterkuenfte-ohne-not.ch

    The ball milling doping method led to a higher content of quaternary nitrogen and to the formation of oxidized nitrogen while conventional doping favored the incorporation of

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