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Fabrication and Surface Modification of Macroporous Silica Fibers by Electrospinning for Super Adsorbent of Oil
Hoai Han Nguyen, Thi Thu Hien Nguyen, Young-Sang Cho
Korean J. Met. Mater. 2022;60(10):732-743.   Published online 2022 Sep 29
DOI: https://doi.org/10.3365/KJMM.2022.60.10.732

Silica fibers were fabricated by sol-gel reaction and an electrospinning process. A high voltage source of electricity was applied to the prepared spinning solution to form the fibers. Macroporous silica fibers were prepared using polystyrene (PS) nanospheres as templates after calcination. The pore size could be controlled by adjusting the..... More

                   Web of Science 4  Crossref 4
High-throughput Screening Computation for Discovery of Porous Zeolites for Hydrogen Storage
수소 저장용 다공성 제올라이트 탐색을 위한 고속 대량 스크리닝 계산
Byung Chul Yeo
Korean J. Met. Mater. 2022;60(7):537-544.   Published online 2022 Jun 3
DOI: https://doi.org/10.3365/KJMM.2022.60.7.537

Hydrogen is considered an attractive energy resource because it is eco-friendly in contrast with fossil fuels. Hydrogen storage remains as essential technology for increasing the use of the hydrogen in applications such as hydrogen vehicles and fuel cells. Hydrogen storage requires retaining a high density of hydrogen molecules at ambient..... More

                   Web of Science 1  Crossref 2
Optimization of Oil Adsorption Capacity by Aerogel Powder Synthesized Using Emulsion Droplets as Micro-reactors in Ambient Conditions from Sodium Silicate as Precursor
Young-Sang Cho, Sohyeon Sung, Seung Hee Woo, Young Seok Kim
조영상, 성소현, 우승희, 김영석
Korean J. Met. Mater. 2021;59(2):99-112.   Published online 2021 Feb 5
DOI: https://doi.org/10.3365/KJMM.2021.59.2.99
In this study, silica aerogel particles were synthesized from emulsion droplets as micro-reactors at room temperature under ambient pressure. An economical precursor, sodium silicate, was used as the starting material for silica, and an emulsification technique was applied to form droplets in continuous phase. By controlling the composition of the... More
                   Web of Science 7  Crossref 6
Assessment of H<sub>2</sub>O Adsorption Characteristics Based on Zeolite Type
제올라이트 종류에 따른 수분 흡착 특성 평가
Kwangbae Kim, Yesol Lim, Eunseok kim, Saera Jin, Hyunjun Lee, Seonghoon Kim, Yunyoung Noh, Ohsung Song
김광배, 임예솔, 김은석, 진새라, 이현준, 김성훈, 노윤영, 송오성
Korean J. Met. Mater. 2020;58(7):501-506.   Published online 2020 Jul 5
DOI: https://doi.org/10.3365/KJMM.2020.58.7.501

The properties and H2O adsorption characteristics of two types of zeolites (3A and 13X) with the same shape but different element composition were identified. These zeolites are used in gas purification processes to manufacture 9N ultra-pure inert gases for semiconductor process applications. To analyze the shape and microstructure of the..... More

Synthesis of Porous Silica Particles for the Adsorption of Organic Dye in Aqueous Medium
Young-Sang Cho, Sol Jeong, Soyoung Nam
Korean J. Met. Mater. 2020;58(5):304-318.   Published online 2020 Apr 20
DOI: https://doi.org/10.3365/KJMM.2020.58.5.304

This study investigated the removal of the organic dye like methylene blue using porous particles in a batch adsorption process. Porous silica microparticles were synthesized with macropores or meso-macropores and used as adsorbent particles. The hierarchically porous structures with additional mesopores were found to be more effective adsorbent than simple..... More

                   Web of Science 3  Crossref 3
Adsorption of Pd(II) onto Zr(IV) Based Metal-Organic Framework UIO-66-NH<sub>2</sub> from Hydrochloric Acid Solution
염산 용액에서 지르코늄(IV)계 금속-유기물 구조체 UIO-66-NH2의 팔라듐(II) 흡착
Hyeong Hun Ahn, Man Seung Lee
안형훈, 이만승
Korean J. Met. Mater. 2019;57(9):589-595.   Published online 2019 Aug 21
DOI: https://doi.org/10.3365/KJMM.2019.57.9.589

Metal-organic frameworks are used in many applications, such as gas separation, catalysis, and the synthesis of nanomaterials. Metal-organic frameworks show superior stability at high temperature, which makes them potentially useful for the adsorption of metal ions from leaching solutions at high temperature. In this work, UIO-66-NH2, a zirconium(IV) based metal-organic..... More

                   Web of Science 1  Crossref 1
Adsorption / Desorption Performance and NOx Removal Efficiency of BaO Loaded V2O5-WO3/TiO2 Selective Catalytic Reduction Catalyst
BaO가 담지된 V2O5-WO3/TiO2 SCR 촉매의 질소산화물 흡, 탈착 특성 및 제거 효율
Jin Woo Kim, Bora Ye, Minwoo Lee, Bora Jung, Duck Hyun Lee, Heesoo Lee, Hong-Dae Kim
김진우, 예보라, 이민우, 정보라, 이덕현, 이희수, 김홍대
Korean J. Met. Mater. 2019;57(4):270-277.   Published online 2019 Apr 5
DOI: https://doi.org/10.3365/KJMM.2019.57.4.270

Recently, directly emitted NOx upon start-up has been spotlighted as a significant emissions problem. BaO loaded V2O5-WO3/TiO2 Selective Catalytic Reduction (SCR) catalysts were synthesized with various contents of barium which was a representative NOx adsorbent and their NOx adsorption, desorption, and removal efficiency were shown. The phase of BaO was..... More

                   Web of Science 4  Crossref 4
Effects of Added Cr and Ni on the Resistance of -Iron Surface to Cl<sub>2</sub> Gas Corrosion
크롬과 니켈 첨가가 α-Fe 표면의 염소 가스 부식 특성에 미치는 영향
Jiwoong Kim, MyungJae Kim, Chang Yul Seo, Jungho Ryu, Taegong Ryu, Hye-Jin Hong, Yong Jae Suh
김지웅, 김명재, 서창열, 류정호, 류태공, 홍혜진, 서용재
Korean J. Met. Mater. 2019;57(2):108-114.   Published online 2019 Feb 5
DOI: https://doi.org/10.3365/KJMM.2019.57.2.108

As energy generation by recycling biomass has become increasingly attractive, research on biomass recycling has focused on improving operational efficiency. To develop a new material composition for the inner wall of a biomass boiler, we investigated the effect of Cr and Ni addition on the resistance of the α-iron (100)..... More

                   Web of Science 1  Crossref 1
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