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Effects of Zn(BH<sub>4</sub>)<sub>2</sub>, Ni, and/or Ti Doping on the Hydrogen-Storage Features of MgH<sub>2</sub>
Myoung Youp Song, Young Jun Kwak
Korean J. Met. Mater. 2019;57(3):176-183.   Published online 2019 Feb 8
DOI: https://doi.org/10.3365/KJMM.2019.57.3.176

Abstract
In the present work, MgH2 was doped with Zn(BH4)2, Ni, and/or Ti to improve its hydrogen absorption and release features. Samples were prepared by grinding in a planetary ball mill in a hydrogen atmosphere. To increase the hydrogen absorption and release rates without significantly sacrificing hydrogenstorage capacity the additive percentages..... More

                   Web of Science 8  Crossref 7
Hydrogen Storage Properties of Mg Alloy Prepared by Incorporating Polyvinylidene Fluoride via Reactive Milling
Myoung Youp Song, Young Jun Kwak
Korean J. Met. Mater. 2018;56(12):878-884.   Published online 2018 Dec 5
DOI: https://doi.org/10.3365/KJMM.2018.56.12.878

Abstract
In the present work, we selected a polymer, polyvinylidene fluoride (PVDF), as an additive to improve the hydrogenation and dehydrogenation properties of Mg. 95 wt% Mg + 5 wt% PVDF (designated Mg-5PVDF) samples were prepared via milling in hydrogen atmosphere (reactive milling), and the hydrogenation and dehydrogenation characteristics of the..... More

                   Crossref 5
Raising the Dehydrogenation Rate of a Mg-CMC (Carboxymethylcellulose, Sodium Salt) Composite by Alloying Ni via Hydride-Forming Milling
Myoung Youp Song, Eunho Choi, Young Jun Kwak
Korean J. Met. Mater. 2018;56(8):620-627.   Published online 2018 Aug 5
DOI: https://doi.org/10.3365/KJMM.2018.56.8.620

Abstract
In our previous work, samples with a composition of 95 wt% Mg + 5 wt% CMC (Carboxymethylcellulose, Sodium Salt, [C6H7O2(OH)x(C2H2O3Na)y]n) (named Mg-5 wt%CMC) were prepared through hydride-forming milling. Mg-5 wt%CMC had a very high hydrogenation rate but a low dehydrogenation rate. Addition of Ni to Mg is known to increase..... More

                   Crossref 5
Hydrogen Uptake and Release Characteristics of Mg-xTaF<sub>5</sub>-xVCl<sub>3</sub> (x=1.25, 2.5, and 5)
Myoung Youp Song, Young Jun Kwak
Korean J. Met. Mater. 2018;56(8):611-619.   Published online 2018 Aug 5
DOI: https://doi.org/10.3365/KJMM.2018.56.8.611

Abstract
TaF5 and VCl3 were chosen as additives to enhance the hydrogen uptake and release rates of Mg. The total content of the additives was not more than 10 wt% since too high content reduces the fraction of Mg and thus the hydrogen storage capacity of the alloys. Samples with compositions..... More

                   Crossref 7
Hydrogen Storage Properties of Mg-Graphene Composites
Myoung Youp Song, Young Jun Kwak, Eunho Choi
Korean J. Met. Mater. 2018;56(7):524-531.   Published online 2018 Jul 5
DOI: https://doi.org/10.3365/KJMM.2018.56.7.524

Abstract
To improve the hydrogen uptake and release properties of magnesium (Mg), five weight percent of graphene was added to pre-milled Mg by milling in hydrogen (reaction-involving milling). The hydrogen uptake and release properties of the graphene-added Mg (named Mg-5graphene) were investigated. Premilling of Mg (for 24 h) and then adding..... More

                   Crossref 10
Development of a Mg-Based Alloy with a Hydrogen-Storage Capacity of 7 wt% by Adding a Polymer CMC via Transformation-Involving Milling
Myoung Youp Song, Eunho Choi, Young Jun Kwak
Korean J. Met. Mater. 2018;56(5):392-399.   Published online 2018 May 8
DOI: https://doi.org/10.3365/KJMM.2018.56.5.392

Abstract
The addition of CMC (Carboxymethylcellulose, Sodium Salt) may improve the hydriding and dehydriding properties of Mg since it has a relatively low melting point and the melting of CMC during transformation-involving milling may put the milled samples in good states to absorb and release hydrogen rapidly. Samples with compositions of..... More

       Crossref 6
Comparison of the Hydrogen Release Properties of Zn(BH<sub>4</sub>)<sub>2-</sub>Added MgH<sub>2</sub> Alloy and Zn(BH<sub>4</sub>)<sub>2</sub> and Ni-Added MgH<sub>2</sub> Alloy
Myoung Youp Song, Young Jun Kwak
Korean J. Met. Mater. 2018;56(3):244-251.   Published online 2018 Mar 6
DOI: https://doi.org/10.3365/KJMM.2018.56.3.244

Abstract
Samples with compositions of 99 w/o MgH2+1 w/o Zn(BH4)2 (designated MgH2-1Zn(BH4)2) and 96 w/o MgH2+2 w/o Zn(BH4)2+2 w/o Ni (designated MgH2-2Zn(BH4)2-2Ni) were prepared by milling in a planetary ball mill in a hydrogen atmosphere (reaction-involving milling). The hydrogen release properties of MgH2- 1Zn(BH4)2 and MgH2-2Zn(BH4)2-2Ni were compared. A larger quantity..... More

       Crossref 1
Hydrogen Absorption and Release Properties of MgH<sub>2</sub>, Mg<sub>2</sub>Ni, and Ni-Added Mg via Reactive Mechanical Grinding
Seong-Hyeon Hong, Myoung Youp Song
Korean J. Met. Mater. 2018;56(2):155-162.   Published online 2018 Feb 5
DOI: https://doi.org/10.3365/KJMM.2018.56.2.155

Abstract
In this work, MgH2, Mg2Ni, and Ni were added to Mg in order to improve the hydrogen-storage properties of Mg. A 84 wt% Mg + 10 wt% MgH2 + 5 wt% Mg2Ni + 1 wt% Ni sample (designated the Mg-based sample) was prepared by milling under a hydrogen atmosphere in..... More

       Crossref 1
Enhancement of the Hydrogen-Storage Characteristics of Mg by Adding Mg<sub>2</sub>Ni and Ni to MgH<sub>2</sub> via High Energy Ball Milling in Hydrogen Atmosphere
Seong-Hyeon Hong, Young Jun Kwak, Myoung Youp Song
Korean J. Met. Mater. 2018;56(1):59-65.   Published online 2018 Jan 1
DOI: https://doi.org/10.3365/KJMM.2018.56.1.59

Abstract
In this work, Mg2Ni and Ni were added to MgH2 in order to improve the hydrogen-storage properties of Mg. A 94 wt% MgH2+5 wt% Mg2Ni+1wt% Ni (named 94MgH2+5Mg2Ni+1Ni) sample was prepared by milling in a hydrogen atmosphere in a planetary ball mill for 5 h. The Mg2Ni was hydrided during..... More

       Crossref 8
Increase in the Hydrogen-Sorption Rates and the Hydrogen-Storage Capacity of MgH<sub>2</sub> by Adding a Small Proportion of Zn(BH<sub>4</sub>)<sub>2</sub>
Hye Ryoung Park, Young Jun Kwak, Myoung Youp Song
Korean J. Met. Mater. 2017;55(9):657-663.   Published online 2017 Aug 30
DOI: https://doi.org/10.3365/KJMM.2017.55.9.657

Abstract
Abstract: In this work, Zn(BH4)2 was added to improve the hydrogen-storage properties of MgH2. A 99 wt% MgH2+1 wt% Zn(BH4)2 sample was prepared by milling in a planetary ball mill in a hydrogen atmosphere. The proportion of the added Zn(BH4)2 was small (1 wt%) in order to increase hydriding and..... More

       Crossref 2
Hydrogen Sorption of Pure Mg and Niobium (V) Fluoride-Added Mg Alloys Prepared by Planetary Ball Milling in Hydrogen
Hye Ryoung Park, Young Jun Kwak, Seong Ho Lee, Myoung Youp Song
Korean J. Met. Mater. 2016;54(12):916-924.   Published online 2016 Dec 5
DOI: https://doi.org/10.3365/KJMM.2016.54.12.916

Abstract
In this work, niobium (V) fluoride was selected as an additive to heighten the hydrogen sorption rates of Mg. Specimens of pure Mg, 5 wt% niobium fluoride-added Mg, and 10 wt% niobium fluoride-added Mg were prepared by planetary ball milling in hydrogen. The hydrogen sorption properties of the specimens were..... More

       Crossref 5
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