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Joo, Sang Hoon (주상훈)

Department
Department of Chemistry(화학과)
Website
http://shjoo.unist.ac.kr/
Lab
Nanomaterials and Catalysis Lab. (나노재료및촉매 연구실)
Research Keywords
나노재료, 촉매, 에너지 변환, 연료전지, 수전해, 산소환원반응, 수소발생반응, 산소발생반응, Nanomaterials, OER, Catalyst, ORR, HER, electrolyzer, energy conversion, fuel cells
Research Interests
The coupled challenges of a doubling in the world’s energy needs by the year 2050 and the ever-increasing demands for “clean” energy sources have brought increasing attention worldwide to the possibility of a “hydrogen economy” as a long-term solution for securing energy future. While the hydrogen economy offers a compelling vision of an energy future for the world, significant scientific and technical challenges should be addressed to achieve its implementation. The key components for the hydrogen-based energy cycle are integrated electrochemical energy devices such as fuel cells, water electrolyzers, and solar fuel systems. The performance of these energy conversion devices depends critically on the efficiency and durability/stability of catalysts for electrochemical reactions at the electrodes of these devices. The reactions include the electrocatalytic hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) of a hydrogen fuel cell, and the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) of a water electrolyzer. These reactions involve multi-electron transfers and are kinetically demanding. Hence, precious metal-based materials such as Pt, Ru, or Ir with high reaction kinetics have been prevalent choice of catalysts. However, the prohibitively high cost and scarcity of precious metal-based catalysts combined with declining activity during long-term operation have impeded the widespread use of fuel cells and water electrolyzers. Hence, the development of economic electrocatalysts with high activity and durability/stability has been of utmost importance in this area of research.Combining solid-state materials chemistry, electrochemistry, and catalysis, Prof. Joo’s group has endeavored to (i) develop highly active, stable, and cost-effective electrocatalysts for renewable energy conversion reactions, (ii) identify the activity descriptor and active sites of catalysts by exploiting in situ spectroscopic methods in combination with theoretical calculations, and (iii) translate the newly developed catalysts into system-level devices. Ultimate goal of our research is to establish the catalyst structure-activity relationship, which in turn help design next-generation catalysts for renewable energy conversion reactions.
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Issue DateTitleAuthor(s)TypeViewAltmetrics
2018-03Vertex-Reinforced PtCuCo Ternary Nanoframes as Efficient and Stable Electrocatalysts for the Oxygen Reduction Reaction and the Methanol Oxidation ReactionKwon, Taehyun; Jun, Minki; Kim, Ho Young, et alARTICLE325 Vertex-Reinforced PtCuCo Ternary Nanoframes as Efficient and Stable Electrocatalysts for the Oxygen Reduction Reaction and the Methanol Oxidation Reaction
2018-02Preferential horizontal growth of tungsten sulfide on carbon and insight into active sulfur sites for the hydrogen evolution reactionSeo, Bora; Jung, Gwan Yeong; Kim, Jae Hyung, et alARTICLE521 Preferential horizontal growth of tungsten sulfide on carbon and insight into active sulfur sites for the hydrogen evolution reaction
2018-01Ni@Ru and NiCo@Ru Core-Shell Hexagonal Nanosandwiches with a Compositionally Tunable Core and a Regioselectively Grown ShellHwang, Hyeyoun; Kwon, Taehyun; Kim, Ho Young, et alARTICLE420 Ni@Ru and NiCo@Ru Core-Shell Hexagonal Nanosandwiches with a Compositionally Tunable Core and a Regioselectively Grown Shell
2017-12Lanthanide metal-assisted synthesis of rhombic dodecahedral MNi (M = Ir and Pt) nanoframes toward efficient oxygen evolution catalysisJin, Haneul; Hong, Yongju; Yoon, Jisun, et alARTICLE624 Lanthanide metal-assisted synthesis of rhombic dodecahedral MNi (M = Ir and Pt) nanoframes toward efficient oxygen evolution catalysis
2017-12MXene: an emerging two-dimensional material for future energy conversion and storage applicationsChaudhari, Nitin K.; Jin, Hanuel; Kim, Byeongyoon, et alARTICLE451 MXene: an emerging two-dimensional material for future energy conversion and storage applications
2017-11Molecularly dispersed nickel-containing species on the carbon nitride network as electrocatalysts for the oxygen evolution reactionOhn, Saerom; Kim, Seung Yeon; Mun, Seon Kyu, et alARTICLE514 Molecularly dispersed nickel-containing species on the carbon nitride network as electrocatalysts for the oxygen evolution reaction
2017-10Synthesis of compositionally tunable, hollow mixed metal sulphide CoxNiySz octahedral nanocages and their composition-dependent electrocatalytic activities for oxygen evolution reactionKim, Jun; Jin, Haneul; Oh, Aram, et alARTICLE315 Synthesis of compositionally tunable, hollow mixed metal sulphide CoxNiySz octahedral nanocages and their composition-dependent electrocatalytic activities for oxygen evolution reaction
2017-10전이금속-질소/탄소 기반 산소환원반응 촉매의 최신 연구 동향Sa, Young Jin; Woo, Jinwoo; Kim, Jae Hyung, et alARTICLE396
2017-09Recent Progress in the Identification of Active Sites in Pyrolyzed Fe-N/C Catalysts and Insights into Their Role in Oxygen Reduction ReactionSa, Young Jin; Kim, Jae Hyung; Joo, Sang HoonARTICLE342 Recent Progress in the Identification of Active Sites in Pyrolyzed Fe-N/C Catalysts and Insights into Their Role in Oxygen Reduction Reaction
2017-08Cactus-Like Hollow Cu2-xS@Ru Nanoplates as Excellent and Robust Electrocatalysts for the Alkaline Hydrogen Evolution ReactionYoon, Donghwan; Lee, Jaeyoung; Seo, Bora, et alARTICLE467 Cactus-Like Hollow Cu2-xS@Ru Nanoplates as Excellent and Robust Electrocatalysts for the Alkaline Hydrogen Evolution Reaction
2017-07Electrocatalysts composed of a Co(acetylacetonate)(2) molecule and refluxed graphene oxide for an oxygen reduction reactionShim, Yeonjun; Sa, Young Jin; Shin, Yunseok, et alARTICLE459 Electrocatalysts composed of a Co(acetylacetonate)(2) molecule and refluxed graphene oxide for an oxygen reduction reaction
2017-07Recent advances in unveiling active sites in molybdenum sulfide-based electrocatalysts for the hydrogen evolution reactionSeo, Bora; Joo, Sang HoonARTICLE286 Recent advances in unveiling active sites in molybdenum sulfide-based electrocatalysts for the hydrogen evolution reaction
2017-06Iridium-Based Multimetallic Nanoframe@Nanoframe Structure: An Efficient and Robust Electrocatalyst toward Oxygen Evolution ReactionPark, Jongsik; Sa, Young Jin; Baik, Hionsuck, et alARTICLE373 Iridium-Based Multimetallic Nanoframe@Nanoframe Structure: An Efficient and Robust Electrocatalyst toward Oxygen Evolution Reaction
2017-05Direct conversion of coordination compounds into Ni2P nanoparticles entrapped in 3D mesoporous graphene for an efficient hydrogen evolution reactionJeong, Sungeun; Seo, Bora; Hwang, Jeong Min, et alARTICLE800 Direct conversion of coordination compounds into Ni2P nanoparticles entrapped in 3D mesoporous graphene for an efficient hydrogen evolution reaction
2017-05High-performance Fe5C2@CMK-3 nanocatalyst for selective and high-yield production of gasoline-range hydrocarbonsKang, Shin Wook; Kim, Kyeounghak; Chun, Dong Hyun, et alARTICLE366 High-performance Fe5C2@CMK-3 nanocatalyst for selective and high-yield production of gasoline-range hydrocarbons
2017-03Roles of Fe-N-X and Fe Fe-Fe3C@C Species in Fe-N/C Electrocatalysts for Oxygen Reduction ReactionKim, Jae Hyung; Sa, Young Jin; Jeong, Hu Young, et alARTICLE560 Roles of Fe-N-X and Fe Fe-Fe3C@C Species in Fe-N/C Electrocatalysts for Oxygen Reduction Reaction
2017-03Morphology controlled synthesis of 2-D Ni-Ni3S2 and Ni3S2 nanostructures on Ni foam towards oxygen evolution reactionChaudhari, Nitin Kaduha; Oh, Aram; Sa, Young Jin, et alARTICLE353 Morphology controlled synthesis of 2-D Ni-Ni3S2 and Ni3S2 nanostructures on Ni foam towards oxygen evolution reaction
2017-02Cobalt Assisted Synthesis of IrCu Hollow Octahedral Nanocages as Highly Active Electrocatalysts toward Oxygen Evolution ReactionKwon, Taehyun; Hwang, Hyeyoun; Sa, Young Jin, et alARTICLE486 Cobalt Assisted Synthesis of IrCu Hollow Octahedral Nanocages as Highly Active Electrocatalysts toward Oxygen Evolution Reaction
2016-11A General Approach to Preferential Formation of Active Fe-Nx Sites in Fe-N/C Electrocatalysts for Efficient Oxygen Reduction ReactionSa, Young Jin; Seo, Song-Jun; Woo, Jinwoo, et alARTICLE941 A General Approach to Preferential Formation of Active Fe-Nx Sites in Fe-N/C Electrocatalysts for Efficient Oxygen Reduction Reaction
2016-10Electrocatalytic performances of heteroatom-containing functionalities in N-doped reduced graphene oxidesShim, Yeojun; Han, Jongwon; Sa, Young Jin, et alARTICLE598 Electrocatalytic performances of heteroatom-containing functionalities in N-doped reduced graphene oxides

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