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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
2022-09Steering Catalytic Selectivity with Atomically Dispersed Metal Electrocatalysts for Renewable Energy Conversion and Commodity Chemical ProductionJoo, Sang Hoon; Kim, Jae Hyung; Sa, Young Jin, et alARTICLE7 Steering Catalytic Selectivity with Atomically Dispersed Metal Electrocatalysts for Renewable Energy Conversion and Commodity Chemical Production
2022-08Circumventing the OCl versus OOH scaling relation in the chlorine evolution reaction: Beyond dimensionally stable anodesExner, Kai S.; Lim, Taejung; Joo, Sang HoonARTICLE178 Circumventing the OCl versus OOH scaling relation in the chlorine evolution reaction: Beyond dimensionally stable anodes
2022-08Non-siliceous ordered mesoporous materials via nanocasting for small molecule conversion electrocatalysisBaek, Du San; Joo, Sang HoonARTICLE26 Non-siliceous ordered mesoporous materials via nanocasting for small molecule conversion electrocatalysis
2022-08Catalyst design, measurement guidelines, and device integration for H2O2 electrosynthesis from oxygen reductionLim, June Sung; Sa, Young Jin; Joo, Sang HoonARTICLE18 Catalyst design, measurement guidelines, and device integration for H2O2 electrosynthesis from oxygen reduction
2022-08Boosting Thermal Stability of Volatile Os Catalysts by Downsizing to Atomically Dispersed SpeciesKim, Jae Hyung; Yoon, Sinmyung; Baek, Du San, et alARTICLE6 Boosting Thermal Stability of Volatile Os Catalysts by Downsizing to Atomically Dispersed Species
2022-06Metastable Phase-Controlled Synthesis of Mesoporous Molybdenum Carbides for Efficient Alkaline Hydrogen EvolutionBaek, Du San; Lee, Jinyoung; Kim, Jinjong, et alARTICLE220 Metastable Phase-Controlled Synthesis of Mesoporous Molybdenum Carbides for Efficient Alkaline Hydrogen Evolution
2022-01Recent advances in non-precious group metal-based catalysts for water electrolysis and beyondKim, Hee Jin; Kim, Ho Young; Joo, Jinwhan, et alARTICLE151 Recent advances in non-precious group metal-based catalysts for water electrolysis and beyond
2022-01Direct propylene epoxidation with oxygen using a photo-electro-heterogeneous catalytic systemKo, Myohwa; Kim, Yongseon; Woo, Jinwoo, et alARTICLE228 Direct propylene epoxidation with oxygen using a photo-electro-heterogeneous catalytic system
2022-01Heteroatom-doped nanomaterials/core-shell nanostructure based electrocatalysts for the oxygen reduction reactionNagappan, Saravanan; Duraivel, Malarkodi; Hira, Shamim Ahmed, et alARTICLE117 Heteroatom-doped nanomaterials/core-shell nanostructure based electrocatalysts for the oxygen reduction reaction
2021-12Metal carbides as alternative electrocatalysts for energy conversion reactionsJoo, Sang Hoon; Lee, Jae SungARTICLE149 Metal carbides as alternative electrocatalysts for energy conversion reactions
2021-12Unveiling the Cationic Promotion Effect of H2O2 Electrosynthesis Activity of O-Doped CarbonsLee, Juyeon; Lim, June Sung; Yim, Gyeonghye, et alARTICLE110 Unveiling the Cationic Promotion Effect of H2O2 Electrosynthesis Activity of O-Doped Carbons
2021-11Designing highly active nanoporous carbon H2O2 production electrocatalysts through active site identificationLim, June Sung; Kim, Jae Hyung; Woo, Jinwoo, et alARTICLE140 Designing highly active nanoporous carbon H2O2 production electrocatalysts through active site identification
2021-10General Efficacy of Atomically Dispersed Pt Catalysts for the Chlorine Evolution Reaction: Potential-Dependent Switching of the Kinetics and MechanismLim, Taejung; Kim, Jae Hyung; Kim, Jinjong, et alARTICLE202 General Efficacy of Atomically Dispersed Pt Catalysts for the Chlorine Evolution Reaction: Potential-Dependent Switching of the Kinetics and Mechanism
2021-09Reversible Ligand Exchange in Atomically Dispersed Catalysts for Modulating the Activity and Selectivity of the Oxygen Reduction ReactionKim, Jae Hyung; Shin, Dongyup; Kim, Jinjong, et alARTICLE169 Reversible Ligand Exchange in Atomically Dispersed Catalysts for Modulating the Activity and Selectivity of the Oxygen Reduction Reaction
2021-08Heteroatom-doped carbon-based oxygen reduction electrocatalysts with tailored four-electron and two-electron selectivityWoo, Jinwoo; Lim, June Sung; Kim, Jae Hyung, et alARTICLE130 Heteroatom-doped carbon-based oxygen reduction electrocatalysts with tailored four-electron and two-electron selectivity
2021-08Single-Atom Catalysts: A Perspective toward Application in Electrochemical Energy ConversionSpeck, Florian D.; Kim, Jae Hyung; Bae, Geunsu, et alARTICLE95 Single-Atom Catalysts: A Perspective toward Application in Electrochemical Energy Conversion
2021-06Nanoscale electrocatalyst design for alkaline hydrogen evolution reaction through activity descriptor identificationBaek, Du San; Lee, Jinyoung; Lim, June Sung, et alARTICLE170 Nanoscale electrocatalyst design for alkaline hydrogen evolution reaction through activity descriptor identification
2021-06Structural Evolution of Atomically Dispersed Fe Species in Fe-N/C Catalysts Probed by X-ray Absorption and Fe-57 Mossbauer SpectroscopiesWoo, Jinwoo; Choi, Hyunkyung; Sa, Young Jin, et alARTICLE167 Structural Evolution of Atomically Dispersed Fe Species in Fe-N/C Catalysts Probed by X-ray Absorption and Fe-57 Mossbauer Spectroscopies
2021-05Pt-based Intermetallic Nanocatalysts for Promoting the Oxygen Reduction ReactionKim, Ho Young; Kim, Jin Young; Joo, Sang HoonARTICLE173 Pt-based Intermetallic Nanocatalysts for Promoting the Oxygen Reduction Reaction
2021-01Ordered Mesoporous Carbons with Graphitic Tubular Frameworks by Dual Templating for Efficient Electrocatalysis and Energy StorageBaek, Du San; Lee, Kyung Ah; Park, Jaehyun, et alARTICLE429 Ordered Mesoporous Carbons with Graphitic Tubular Frameworks by Dual Templating for Efficient Electrocatalysis and Energy Storage

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