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2액실 바이폴라막 전기투석에 의한 폐 Na
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용액에서 NaOH 재생
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이영재, 서민혁, 안재우
Korean J. Met. Mater.
2025;63(4):281-290. Published online 2025 Apr 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.4.281
Abstract
With the recent introduction of various environmental policies focused on carbon neutrality has made recycling a crucial task in the electric vehicle industry. In particular, the recycling of lithium-ion batteries, a critical component of EVs, is becoming increasingly important. The process of recovering valuable metals such as lithium (Li), cobalt.....
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Korean J. Met. Mater.
2025;63(2):168-176. Published online 2025 Feb 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.2.168
Abstract
Water splitting is a sustainable method of hydrogen production that is crucial for achieving carbon neutrality. However, the high cost of green hydrogen remains a major challenge. One strategy to reduce costs is the use of non-precious metal catalysts, such as Co, which is known for its excellent catalytic properties......
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음이온 교환막 수전해용 니켈 기반 수소 발생 반응 촉매의 니켈 산화수 및 입자 크기에 따른 성능 트레이드 오프 연구
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이재훈, 김남인, 진송, 박준영, 하준석, 김치호, 이주영, 김양도, 최승목
Korean J. Met. Mater.
2025;63(2):161-167. Published online 2025 Feb 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.2.161
Abstract
The development of green hydrogen through anion exchange membrane water electrolysis (AEMWE) is essential for achieving carbon neutrality. Developing non-precious-metal catalysts for the hydrogen evolution reaction (HER) is crucial for the commercialization of AEMWE. In this study, Ni-CeO
2
/C catalysts were synthesized via a co-precipitation method and a reduction heat treatment.....
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정전류 제어 방식 바이폴라막 전기투석에 의한 황산나트륨 폐액 처리에 관한 연구
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서민혁, 이영재, 조연철, 안재우
Korean J. Met. Mater.
2024;62(12):944-953. Published online 2024 Nov 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.12.944
Abstract
As environmental pollution has intensified, the importance of recycling spent lithium-ion batteries (LIBs) has significantly increased. Valuable metals contained in LIBs are typically recovered through processes such as leaching, precipitation, and solvent extraction. However, these recycling processes require large amounts of sulfuric acid and caustic soda, resulting in the generation.....
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음이온교환막 수전해를 위한 3원계 층상 이중 수산화물 산소 발생 반응 촉매 개발
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명신우, 진송, 김치호, 이주영, 김양도, 최승목
Korean J. Met. Mater.
2024;62(6):472-479. Published online 2024 May 31
DOI:
https://doi.org/10.3365/KJMM.2024.62.6.472
Abstract
To achieve net zero emissions, green hydrogen should be produced via water electrolysis with renewable energy. To develop efficient anion exchange membrane water electrolyzers (AEMWE), the development of efficient and stable non-precious metal electrocatalysts for the oxygen evolution reaction (OER) is essential. In this study, a high-performance ternary NiFeCo-layer double.....
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Web of Science 1
Crossref 1
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폐리튬배터리(LIBs)에서 유가금속(Ni, Co, Mn, Li) 회수 시 발생하는 황산나트륨의 처리 및 회수 연구
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조연철, 서민혁, 이영재, 안재우
Korean J. Met. Mater.
2024;62(4):275-283. Published online 2024 Mar 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.4.275
Abstract
Concerns have arisen regarding the high concentrations of sodium sulfate in wastewater resulting from the waste Li-ion battery wet recycling process. In addressing this issue, Bipolar electrodialysis was employed to desalinate high-concentration sodium sulfate and recover it as sulfuric acid and sodium hydroxide. The investigation encompassed various experimental variables, such.....
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Crossref 2
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금속 산화물 지지체를 이용한 산소환원반응에 대한 전기화학 촉매 연구 동향
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조유진, 정원석, 임보영
Korean J. Met. Mater.
2023;61(4):231-241. Published online 2023 Mar 22
DOI:
https://doi.org/10.3365/KJMM.2023.61.4.231
Abstract
Global warming and air pollution have forced greater attention to new energy sources to replace fossil fuels. Among several eco-friendly energy sources, polymer electrolyte membrane fuel cells have been increasingly investigated since they have zero emissions, high energy density, and high energy efficiency. Carbon-supported Pt catalyst is generally used for.....
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Web of Science 4
Crossref 3
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고분자 전해질 연료전지의 산소환원반응에 대한 Pt-M 합금 촉매의 최근 연구 동향
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심유진, 정원석
Korean J. Met. Mater.
2021;59(10):741-752. Published online 2021 Sep 6
DOI:
https://doi.org/10.3365/KJMM.2021.59.10.741
Abstract
Due to environmental pollution and global warming, research on new energy sources that can replace fossil fuels is important. A fuel cell is an eco-friendly energy conversion system that discharges water, and uses hydrogen as fuel. Although platinum is a widely used catalyst in PEMFCs, it has commercial limitations because.....
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Crossref 2
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음이온 교환막 수전해에 사용되는 Cu
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산소 발생 촉매의 합성 및 특성 분석
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박성민, 장명제, 박유세, 이주영, 정재엽, 정재훈, 최민관, 노유성, 서민호, 김형주, 양주찬, 김양도, 최승목
Korean J. Met. Mater.
2020;58(1):49-58. Published online 2019 Dec 12
DOI:
https://doi.org/10.3365/KJMM.2020.58.1.49
Abstract
In this study, we investigated the morphological, crystal structural, electronic structural, and electrocatalytic properties of the inverse spinel structured copper cobalt oxide (Cu
0.72
Co
2.28
O
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) catalysts. The materials were prepared by coprecipitation using various copper and cobalt precursors, and subsequent oxidation treatment. Electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Brunauer Emmett.....
More
Web of Science 14
Crossref 13
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나노스케일 질화규소 멤브레인의 기계적, 열적 특성 분석
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장용주, 신현진, 위성주, 김하늘, 이기성, 안진호
Korean J. Met. Mater.
2019;57(2):124-129. Published online 2019 Jan 9
DOI:
https://doi.org/10.3365/KJMM.2019.57.2.124
Abstract
In micro/nano electro-mechanical system, silicon nitride (SiNx) membrane has been widely used in sensors, energy harvesting and optical filters because of its mechanical/chemical stability. However, it is necessary to verify mechanical and thermal properties of nanoscale SiNx membranes to ensure the desirable reliability and durability of a device because the.....
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Web of Science 5
Crossref 6
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Korean J. Met. Mater.
2018;56(5):406-411. Published online 2018 May 8
DOI:
https://doi.org/10.3365/KJMM.2018.56.5.406
Abstract
Industrially meaningful hydrogen production process from mixture or syngas certainly must have a cooling process, which is typically pressure swing adsorption (PSA). However, the PSA process involves an exothermic reaction during adsorption. Recently, hydrogen separation research has been in progress in order to develop a cooling process to minimize or.....
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