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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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금속박막의 고상 및 액상 비젖음 공정을 통한 AuNi 이종금속 나노입자의 자기 정렬 및 성분 혼합 제어
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문윤환, 박종근, 오용준
Korean J. Met. Mater.
2024;62(1):51-56. Published online 2023 Dec 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.1.51
Abstract
Immiscible Au-Ni alloy thin films undergo phase separation and dewetting because of thermodynamic and morphological instability at elevated temperatures below the miscibility gap. We report the formation and assembly of bimetallic nanoparticles (BNPs) on topographic Si templates. An ordered array of inverted pyramidal pits were produced via solid-state and liquid-state.....
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루테늄 기반 전이금속 나노입자/환원된 산화그래핀 혼성체를 이용한 알칼리 수전해 촉매 합성
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이은빈, 조승근, 김상준, 박길령, 이정우
Korean J. Met. Mater.
2023;61(3):190-197. Published online 2023 Feb 24
DOI:
https://doi.org/10.3365/KJMM.2023.61.3.190
Abstract
Green hydrogen has attracted significant attention as one of the future energy sources because no greenhouse gases are emitted during production and its energy density is much higher than fossil fuels. Precious metals such as platinum (Pt) and iridium (Ir)-based catalysts are commonly used for water splitting catalysts. However, because.....
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Web of Science 4
Crossref 4
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Korean J. Met. Mater.
2023;61(1):54-59. Published online 2022 Dec 28
DOI:
https://doi.org/10.3365/KJMM.2023.61.1.54
Abstract
Despite the recent advances in nature-inspired superhydrophobic surfaces with multifunctional properties such as self-healing, self-cleaning, antibacterial material, anti-biofouling, and oil-water separation in various industrial applications, there have been very few reports of robust superhydrophobic surfaces fabricated via a low-cost method. Herein, we report a rationally designed, self-healable, robust, and superhydrophobic.....
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Web of Science 1
Crossref 1
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Korean J. Met. Mater.
2021;59(9):670-676. Published online 2021 Aug 4
DOI:
https://doi.org/10.3365/KJMM.2021.59.9.670
Abstract
In this work, MnO
2
nanoparticles were embedded in a carbon matrix as a porous composite, fabricated using a simple chemical route followed by low-temperature annealing, with activated carbon (AC) as the carbon source in the composite preparation. The porous MnO
2
/carbon structures contained some selective nanoparticles coated with carbon. The structural.....
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TiO
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나노입자를 전자 수송층으로 사용한 양자점 발광다이오드의 용액 안정성 연구
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김문본, 김지완
Korean J. Met. Mater.
2021;59(7):476-480. Published online 2021 Jun 16
DOI:
https://doi.org/10.3365/KJMM.2021.59.7.476
Abstract
We report highly efficient and robust quantum dot light-emitting diodes (QLEDs) with Li-doped TiO
2
nanoparticles (NPs) as an electron transport layer (ETL). As core materials, ZnO-based inorganic NPs can enhance the performance of QLEDs due to their suitable energy level and solution processability. However, their fast electron mobility and instability.....
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Web of Science 2
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Directed Energy Deposition에서 흄의 생성 원인 및 대책
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김강형, 정찬현, 정대용, 현승균
Korean J. Met. Mater.
2020;58(6):383-396. Published online 2020 May 14
DOI:
https://doi.org/10.3365/KJMM.2020.58.6.383
Abstract
Pores and cracks are known as the main defects in metal additive manufacturing (MAM), including directed energy deposition(DED). A gaseous fume is often produced by laser flash (instantaneous high temperature) during laser processing, which may cause various defects such as porosity, lack of fusion, inhomogeneity, low flowability and composition change,.....
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Web of Science 2
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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
Abstract
In this work, LiOH was synthesized using highly soluble Li
2
SO
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. 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.....
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Web of Science 8
Crossref 9
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광환원반응을 통한 TiO
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/Pd 복합광촉매 제조와 광촉매 특성
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이종호, 안홍주, 윤정일, 김영직, 서수정, 오한준
Korean J. Met. Mater.
2019;57(8):510-520. Published online 2019 Jul 8
DOI:
https://doi.org/10.3365/KJMM.2019.57.8.510
Abstract
To decompose dye in aqueous solution, Pd nanoparticle-decorated TiO
2
nanotube photocatalysts were fabricated through electrochemical anodization and photoreduction processes. Morphological and surface characterization of the TiO
2
/Pd heterojunction photocatalyst, as well as photoelectrochemical behaviors, were investigated by X-ray diffraction, UV/Vis diffuse reflectance and photocurrent response. It was found that the precipitated.....
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Web of Science 5
Crossref 3
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Korean J. Met. Mater.
2017;55(11):806-812. Published online 2017 Oct 31
DOI:
https://doi.org/10.3365/KJMM.2017.55.11.806
Abstract
Nanoscale Sn-Bi-Ag compound powders were successfully synthesized using the pulsed wire discharge (PWD) method. In PWD, when a high current is passed through high-density metal wires, the wires explode because of resistance heating, forming fine particles or metal vapor. In this study, we used Sn-Bi and Ag wires in order.....
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교번스퍼터링법에 의해 다양한 기지상 재료위에 형성된 Au 나노입자의 성장거동에 대한 전기, 광학적 분석
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김범준, 김현철, 박종건, 이경석
Korean J. Met. Mater.
2017;55(10):739-744. Published online 2017 Sep 28
DOI:
https://doi.org/10.3365/KJMM.2017.55.10.739
Abstract
Nanocomposite films, which are comprised of metal nanoparticles dispersed in a matrix layer, have attracted great interest due to their unique electrical and optical properties, which are mainly due to the excitation of localized surface plasmons. In this study, we employed an alternating sputtering method to fabricate such nanocomposite films......
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Korean J. Met. Mater.
2017;55(7):492-502. Published online 2017 Jul 4
DOI:
https://doi.org/10.3365/KJMM.2017.55.7.492
Abstract
Pt-functionalized RGO samples were prepared and subsequently irradiated with 2-MeV electron beams (e-beams). The effect of e-beam dose on the structural, electrical, and gas sensing properties of the samples was investigated. E-beam irradiation was found to induce significant microstructural changes in the Pt-functionalized RGO. Measurements of NO
2
sensing at room.....
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Crossref 2
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