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Facile Synthesis of Single-Phase Alpha-Tungsten Nanopowders from Ammonium Paratungstate by RF Induction Thermal Plasma and Thermochemical Reduction
Dongyoon Shin, Hyun-Woo Shim, Basudev Swain, Kyung-Soo Park, Chan-Gi Lee
Korean J. Met. Mater. 2020;58(11):798-807.   Published online 2020 Oct 15
DOI: https://doi.org/10.3365/KJMM.2020.58.11.798

Facile, economic methods of preparing tungsten (W) nanopowder are critically needed to meet industrial demand. Herein, we report a method of preparing single-phase alpha-W (α-W) nanopowders using ammonium paratungstate (APT) as a starting material and the optimum synthesis conditions. The process involves two stages: i) the radio-frequency (RF) induction thermal..... More

A Method of Synthesizing Lithium Hydroxide Nanoparticles Using Lithium Sulfate from Spent Batteries by 2-Step Precipitation Method
Soyeong Joo, Hyun-Woo Shim, Jin-Ju Choi, Chan-Gi Lee, Dae-Guen Kim
Korean J. Met. Mater. 2020;58(4):286-291.   Published online 2020 Mar 10
DOI: https://doi.org/10.3365/KJMM.2020.58.4.286

In this work, LiOH was synthesized using highly soluble Li2SO4. To enhance efficiency, this synthesis was performed using the precipitation method, and the correlation between each experimental condition and the synthesis of LiOH was investigated. The particle size and crystalline properties were tailored by controlling various experimental conditions, including the..... More

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