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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
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 alARTICLE40 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 alARTICLE45 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 alARTICLE42 Heteroatom-doped carbon-based oxygen reduction electrocatalysts with tailored four-electron and two-electron selectivity
2021-06Nanoscale electrocatalyst design for alkaline hydrogen evolution reaction through activity descriptor identificationBaek, Du San; Lee, Jinyoung; Lim, June Sung, et alARTICLE46 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 alARTICLE55 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 HoonARTICLE67 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 alARTICLE237 Ordered Mesoporous Carbons with Graphitic Tubular Frameworks by Dual Templating for Efficient Electrocatalysis and Energy Storage
2020-10Thermal Transformation of Molecular Ni2+-N-4 Sites for Enhanced CO2 Electroreduction ActivitySa, Young Jin; Jung, Hyejin; Shin, Dongyup, et alARTICLE172 Thermal Transformation of Molecular Ni2+-N-4 Sites for Enhanced CO2 Electroreduction Activity
2020-10Intermetallic PtCu Nanoframes as Efficient Oxygen Reduction ElectrocatalystsKim, Ho Young; Kwon, Taehyun; Ha, Yoonhoo, et alARTICLE202 Intermetallic PtCu Nanoframes as Efficient Oxygen Reduction Electrocatalysts
2020-09Immobilizing single atom catalytic sites onto highly reduced carbon hosts: Fe-N-4/CNT as a durable oxygen reduction catalyst for Na-air batteriesNoh, Woo Yeong; Kim, Eun Mi; Kim, Kwang Young, et alARTICLE155 Immobilizing single atom catalytic sites onto highly reduced carbon hosts: Fe-N-4/CNT as a durable oxygen reduction catalyst for Na-air batteries
2020-08Selective electrocatalysis imparted by metal-insulator transition for durability enhancement of automotive fuel cellsJung, Sang-Mun; Yun, Su-Won; Kim, Jun-Hyuk, et alARTICLE144 Selective electrocatalysis imparted by metal-insulator transition for durability enhancement of automotive fuel cells
2020-06Highly dispersed Pd catalysts supported on various carbons for furfural hydrogenationLee, Jihyeon; Woo, Jinwoo; Chinh Nguyen-Huy, et alARTICLE412 Highly dispersed Pd catalysts supported on various carbons for furfural hydrogenation
2020-06Ultrasensitive detection of hydrogen peroxide and dopamine using copolymer-grafted metal-organic framework based electrochemical sensorHira, Shamim Ahmed; Nallal, Muthuchamy; Rajendran, Karkuzhali, et alARTICLE188 Ultrasensitive detection of hydrogen peroxide and dopamine using copolymer-grafted metal-organic framework based electrochemical sensor
2020-06Electrocatalyst design for promoting two-electron oxygen reduction reaction: Isolation of active site atomsKim, Jae Hyung; Kim, Yong-Tae; Joo, Sang HoonARTICLE216 Electrocatalyst design for promoting two-electron oxygen reduction reaction: Isolation of active site atoms
2020-05Recent advances in nanostructured intermetallic electrocatalysts for renewable energy conversion reactionsKim, Ho Young; Joo, Sang HoonARTICLE156 Recent advances in nanostructured intermetallic electrocatalysts for renewable energy conversion reactions
2020-05Membraneless enzymatic biofuel cells using iron and cobalt co-doped ordered mesoporous porphyrinic carbon based catalystJi, Jungyeon; Woo, Jinwoo; Chung, Yongjin, et alARTICLE155 Membraneless enzymatic biofuel cells using iron and cobalt co-doped ordered mesoporous porphyrinic carbon based catalyst
2020-04Electrical Conductivity Gradient Based on Heterofibrous Scaffolds for Stable Lithium-Metal BatteriesHong, Sang-Ho; Jung, Dae-Han; Kim, Jung-Hwan, et alARTICLE312 Electrical Conductivity Gradient Based on Heterofibrous Scaffolds for Stable Lithium-Metal Batteries
2020-02Dual catalytic functions of biomimetic, atomically dispersed iron-nitrogen doped carbon catalysts for efficient enzymatic biofuel cellsJi, Jungyeon; Woo, Jinwoo; Chung, Yongjin, et alARTICLE307 Dual catalytic functions of biomimetic, atomically dispersed iron-nitrogen doped carbon catalysts for efficient enzymatic biofuel cells
2020-02Enhanced Activity and Stability of Nanoporous Ptlr Electrocatalysts for Unitized Regenerative Fuel CellKim, Jun-Hyuk; Yun, Su-Won; Shim, Kyubin, et alARTICLE174 Enhanced Activity and Stability of Nanoporous Ptlr Electrocatalysts for Unitized Regenerative Fuel Cell
2020-02A General Strategy to Atomically Dispersed Precious Metal Catalysts for Unravelling Their Catalytic Trends for Oxygen Reduction ReactionKim, Jae Hyung; Shin, Dongyup; Lee, Jaekyoung, et alARTICLE239 A General Strategy to Atomically Dispersed Precious Metal Catalysts for Unravelling Their Catalytic Trends for Oxygen Reduction Reaction

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