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Facile Electrode Manufacturing Strategy for Ultra-Low Cobalt Consumption in Oxygen Evolution Reaction
Hee Yoon Roh, Ki-Yong Yoon, Jaehoon Jeong, Kyung-Bok Lee, Dohyung Kim, Yangdo Kim, Juchan Yang
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...... More

                
Performance Trade-Off in Nickel-Based Hydrogen Evolution Catalysts for Anion Exchange Membrane Water Electrolysis: Effects of the Nickel Oxidation State and Particle Size
음이온 교환막 수전해용 니켈 기반 수소 발생 반응 촉매의 니켈 산화수 및 입자 크기에 따른 성능 트레이드 오프 연구
Jaehun Lee, Nam In Kim, Song Jin, Junyoung Park, Jun Seok Ha, Chiho Kim, Jooyoung Lee, Yangdo Kim, Sung Mook Choi
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-CeO2/C catalysts were synthesized via a co-precipitation method and a reduction heat treatment..... More

                
Bimetallic CoM-ZIF/CdS Photocatalyst Including Transition Metals(M) for Solar Water Splitting
물 분해 수소생산을 위한 전이금속(M) 바이메탈형 CoM-ZIF/CdS 광촉매 제조
Joo Hyun Kim, Yurim Lee, Chaehyun An, Sumin Lee, Jung Hyeun Kim
김주현, 이유림, 안채현, 이수민, 김정현
Korean J. Met. Mater. 2024;62(9):713-720.   Published online 2024 Sep 5
DOI: https://doi.org/10.3365/KJMM.2024.62.9.713

Abstract
Recently, due to energy shortages and environmental pollution caused by the continued use of fossil fuels, there is a growing need for renewable sources to replace fossil fuels. ZIF-67 has a porous structure, a large surface area, high thermal and chemical stability, and a narrow band gap, so it is..... More

                   Web of Science 1  Crossref 1
Effect of Sulfur Contents in NiZnS Composite Photocatalysts on Solar Water Splitting
황 함량 변화가 NiZnS 복합광촉매의 태양광 물분해 효율에 미치는 영향
Joo Hyun Kim, Eun seon Kang, Jung Hyeun Kim
김주현, 강은선, 김정현
Korean J. Met. Mater. 2023;61(4):284-290.   Published online 2023 Mar 22
DOI: https://doi.org/10.3365/KJMM.2023.61.4.284

Abstract
Solar energy is attracting much attention as an eco-friendly source for future energy needs. Herein, NiZnS photocatalysts were synthesized with a hydrothermal method at various sulfur contents. The ZnS material is widely used as a photocatalyst because of its high stability, low toxicity, and excellent charge separation characteristics. Nickel is..... More

                   Web of Science 4  Crossref 3
Bandgap Reduction and Enhanced Photoelectrochemical Water Electrolysis of Sulfur-doped CuBi<sub>2</sub>O<sub>4</sub> Photocathode
Eunhwa Kim, Sanghan Lee, Sangwoo Ryu
Korean J. Met. Mater. 2023;61(2):115-119.   Published online 2023 Jan 27
DOI: https://doi.org/10.3365/KJMM.2023.61.2.115

Abstract
As interest in hydrogen energy grows, eco-friendly methods of producing hydrogen are being explored. CuBi2O4 is one of the p-type semiconductor cathode materials that can be used for photoelectrochemical hydrogen production via environment-friendly water electrolysis. CuBi2O4 has a bandgap of 1.5 – 1.8 eV which allows it to photogenerate electrons..... More

                   Crossref 1
Manufacturing Cu<sub>x</sub>Zn<sub>1-x</sub>S Photocatalysts and Their Solar H<sub>2</sub> Production Characteristics with Varying Cu Content
구리함량 변화에 따른 CuxZn1-xS 광촉매 제조 및 태양광 물분해 수소 생산 특성 연구
Soojin Kahng, Jung Hyeun Kim
강수진, 김정현
Korean J. Met. Mater. 2020;58(12):907-914.   Published online 2020 Dec 4
DOI: https://doi.org/10.3365/KJMM.2020.58.12.907

Abstract
Solar water splitting is an attractive method for producing hydrogen from renewable natural resources, and heterostructure photocatalysts have been widely investigated for photocatalytic applications. Hetero-component photocatalysts can reduce the charge recombination process by improving electron utilization, and are considered promising candidates for solar water splitting. Amongst various heterostructure systems, combinations..... More

                   Web of Science 8  Crossref 7
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