- Fundamental study for the development of Gwang-ju Bioenergy R&D Center
- Technology development for RFB materials/system design and biocoal/gas production
- Development of localization technology for polymer binder core material for small type lithium ion battery positive electrode
- Mnnufacturing technology develpment on composite core materials and electrode with high energy density for ceramic rechageable batteries

- High-voltage cathode materials by combustion-based preparative approaches for Li-ion batteries application,Journal of Power sources 2020, 472, 228368
- Uniform Carbon Coated Na 3 V 2 (PO 4 ) 2 O 2x F 3-2x Nanoparticles for Sodium Ion Batteries as Cathode, ACS Sustainable Chem. Eng. 2019, 7, 23, 18826？18834
- Phase-pure Na3V2(PO4)2F3 embedded in carbon matrix through a facile polyol synthesis as a potential cathode for high performance sodium-ion batteries, Nano Research 2019, 12(4), 911-917
- Sodium manganese oxide electrodes accompanying self-ion exchange for lithium/sodium hybrid ion batteries, Electrochimica Acta, 2018, 261, 42- 48
- Monoclinic-Orthorhombic Na 1.1 Li 2.0 V 2 (PO 4 ) 3 /C Composite Cathode for Na + /Li + Hybrid-ion Batteries, Chemistry of Materials, 2017, 29,6642-6652

○ Development of electrolyte membrane and membrane-electrode assembly for next-generation hydrogen electric vehicles
○ Development of Technologies for Co-electrolysis of CO2 and Low-grade By-products for the Production of Valuable Chemicals
○ Development of key materials for anion exchange membrane water electrolyzer and fuel cell
○ Research for low cost, high efficiency and stability PEM water electrolysis via low iridium loading electrode development
○ Development of large-area SOFC single cell and polymer ionomers for high temperature PEMFC with high performance and durability for hydrocarbon fuels
○ Development of materials technology for MEA of PEMFC for power generation with performance of 300mA/cm2@0.8V and durability of 8μV/h for expansion of urban power plants

○ Synthetic Approaches for Poly (Phenylene) Block Copolymers via Nickel Coupling Reaction for Fuel Cell Applications, Polymers, 2020.
○ Synthetic approaches for advanced multi-block anion exchange membranes, RSC Advances, 2019.
○ Analysis of cerium-composite polymer-electrolyte membranes during and after accelerated oxidative-stability test, Journal of Power Sources, 2018.
○ Hydrocarbon-Based Polymer Electrolyte Membranes: Importance of Morphology on Ion Transport and Membrane Stability, Chemical Reviews, 2017.
○ Nanocrack-regulated self-humidifying membranes, Nature, 2016.

- Membrane and its processes for carbon capture
- Process and properties of additive-manufactured ceramics
- Preparation and properties of porous ceramics for thermal insulation

- Wet CO2/N2 permeation through a crosslinked thermally rearranged poly (benzoxazole-co-imide) (XTR-PBOI) hollow fiber membrane module for CO2 capture, Journal of Membrane Science, 539, 412-20 (2017).
- Influence of silicon carbide as a mineralizer on mechanical and thermal properties of silica-based ceramic cores, Ceramics International, 42, 14738-14742 (2016).
- Desalination via a new membrane capacitive deionization process utilizing flow-electrodes, Energy & Environmental Science, 6, 1471-75 (2013).
- Methyltrimethoxysilane based monolithic silica aerogels via ambient pressure drying, Microporous and Mesoporous Materials, 100[1-3], 350-55 (2007).

- Development of epitaxy silicon wafering machine and process based on low temperature plasma enhanced chemical vapor deposition
- Development of metal/Si contact resistivity reduction technology by forming 3-D silicides on low-T grown nanoporous epi-Si

- Influence of hydrogen dilution and doping gas on the material properties of plasma-deposited polycrystalline silicon thin films
- Suppression of Parasitic Epitaxy Growth and Realization of High-Quality Wafer Surface Passivation of Silicon Heterojunction Solar Cells
- Study on correlation of thicknesses of transparent electrodes and performance of silicon heterojunction solar cells

- Development of Smart Fault Diagnosis and Maintenance Technology to Improve Durability of PEM Fuel Cell Systems
- Development of Advanced Technology on Fuel Cell System for Housing
- Development of Safety Verification Technology for Small Aircraft with Hydrogen Fuel Cell-Based Propulsion System

- Experimental validation of passive and active fault-tolerant controls against sensor faults in a proton exchange membrane fuel cell system, Journal of Process Control (2023)
- Severity-based fault diagnostic method for polymer electrolyte membrane fuel cell systems, Applied Energy (2023)
- The effect of gas diffusion layer on electrochemical effective reaction area of catalyst layer and water discharge capability, Renewable Energy (2022)
- Water transport in polymer electrolyte membrane fuel cell: Degradation effect of gas diffusion layer, International Journal of Energy Research (2022)
- Hybrid diagnosis method for initial faults of air supply systems in proton exchange membrane fuel cells, Renewable Energy (2021)
- On-Line EIS Measurement for High-Power Fuel Cell Systems Using Simulink Real-Time, Energies (2021)
- Resistance separation of polymer electrolyte membrane fuel cell by polarization curve and electrochemical impedance spectroscopy, Energies (2021)
- Thermodynamic, exergetic, and thermoeconomic analyses of a 1-kW proton exchange membrane fuel cell system fueled by natural gas, Energy (2021)
- Residual-based fault diagnosis for thermal management systems of proton exchange membrane fuel cells, Applied Energy (2020)
- Hierarchical fault diagnostic method for a polymer electrolyte fuel cell system, International Journal of Hydrogen Energy (2020)

(과기부: 기관고유사업) 발전용 연료전지 스택 및 모듈화 핵심기술개발
(산자부: 신재생에너지핵심기술개발사업) 캐스케이드 스택을 활용한 10KW급 고효율 SOFC 시스템 기술개발
(산자부: 신재생에너지핵심기술개발사업) 그리수소 생산성 극대화를 위한 중저온 작동형 프로톤 세라믹 수전해기술개발
(과기부: 기관고유사업) 전고체전지 핵심 소재개발
(과기부: 기관고유사업) 전450C 영역 작동형 신규 고전도성 프로톤 고체전해질 개발

1] H.W. Kim, J. Seo, J.H. Yu, K.S. Yun, J.H. Joo, J. Moon, H.J. Park, Effect of cerium on yttrium-doped barium zirconate with a ZnO sintering aid: Grain and grain boundary protonic conduction, Ceram. Int. 47 (2021) 32720？32726. https://doi.org/10.1016/j.ceramint.2021.08.168.
2] H. Noh, D. Kim, W. Lee, B. Jang, J.S. Ha, J.H. Yu, Surface Modification of Ga-Doped-LLZO (Li7La3Zr2O12) by the Addition of Polyacrylonitrile for the Electrochemical Stability of Composite Solid Electrolytes, Energies. 16 (2023) 7695. https://doi.org/10.3390/en16237695.
3] Beom Tak Na, Jeong Hwan Park, Jong Hyuk Park, Ji Haeng Yu, and Jong Hoon Joo, Elucidation of the Oxygen Surface Kinetics in a Coated Dual-Phase Membrane for Enhancing Oxygen Permeation Flux, ACS Appl. Mater. Interfaces 2017, 9, 19917？19924.
4] J.H. Yu, G. W. Park, S. Lee, S. K. Woo, “Microstructural Effects on the Electrical and Mechanical Properties of Ni-YSZ Cermet Anode for Solid Oxide Fuel Cells,” J. Power Sources, 163926-932 (2007).
5] J.H. Yu, J.-S. Lee, and J. Maier, Peculiar non-monotonic water incorporation in oxides detected by in-situ optical absorption spectroscopy,” Angewandte Chemie Int. Ed. 46, pp8992-8994 (2007)
6] J.H. Yu and G.M. Choi, “Selective CO gas detection of CuO- and ZnO-doped SnO2 gas sensor,” Sensors and Actuators B 75 (2001) 56-61.

- Development of nanostructure photocalyst for the applications of hydrogen production and water treatment
- Development of H2 based house complex for hydrogen city

- Enhanced Photoelectrochemical Activity of TiO2 Nanotubes Decorated with Lanthanide Ions for Hydrogen Production, Catalysts 12 (2022) 866
- Enhanced photocatalytic activity of TiO2 nanotubes decorated with erbium and reduced graphene oxide, Applied Surface Science 565 (2022) 150459
- Improved photoelectrochemical properties of TiO2 nanotubes doped with Er and effects on hydrogen production from water splitting, Chemosphere 267 (2021) 129289
- Photocatalytic Degradation of Acesulfame K Optimization Using the Box-Behnken Design (BBD), Process Safety and Environmental Protection 113 (2018) 10-21
- Performance evaluation of rotating PEC reactor for enhanced degradation of MB, KJChE 34(10) (2017) 2780-2786
- Evaluation of peformance with small and scale-up rotating and flat reactors; Photocatalytic degration of BPA, EE2, and E2 under solar irradiation, Journal of Hazardous Materials 336 (2017) 21-32
- Simultaenously Photocatalytic treatment of Cr(VI) and EDCs using rotating reactor under solar irradiation, Journal of Hazardous Materials 288 (2015) 124-133
- Sonocatalytic-TiO2 nanotube, Fenton, and CCl4 reaciton for enhanced oxidation, and their application, Separation and Purification Technology 141 (2015) 1-9
- Self-rotating photocatalytic system for aqueous Cr(VI), Chemical Engineering Journal 229 (2013) 66-71
- Ultrasonic degration of acetaminophen and naproxen in the presence of single-walled carbon nanotubes, Journal of Hazadous Materials 254-255 (2013) 284-292
- Preparation of Pt deposited nanotubular TiO2 as Cathode for enhanced photoelectrochemical hydrogen production using seawater electrolytes, Journal of Solid State Chemistry 184 (2011) 2920-2924
- Photoelectrochemical hydrogen produciton with concentrated natural seawater produced by membrane process, Solar Energy 85 (2011) 2256-2263
- Preparation of anodized TiO2 photoanode for PEC H2 production using natural seawater, Solar Energy Materials & Solar Cells 94 (2010) 1809-1815
- Effect of length of anodized TiO2 tubes on photoreactivity: Photocurrent, Cr(VI) reduction and H2 evolution, Journal of Power Sources 195 (2010) 5144-5149

- Development of fundamental and scale-up technology of 2D heterostructure materials for energy conversion and storage devices
- Development of eco-friendly biodegradable energy storage materials anad devices using disused forest biomass

1) H.Yoon* et. al. J. Mater. Chem. A, 2017, 5, 25368., "Mussel-inspired surface functionalization of porous carbon nanosheets using polydopamine and Fe3+/tannic acid layers for high-performance electrochemical capacitors" (*corresponding author),
2) H.Yoon* et. al. Chem. Eng. J. 2020, 386, 123972. "Attachable micropseudocapacitors using highly swollen laser-induced-graphene electrodes" (*corresponding author),
3) H.Yoon* et. al. Chem. Eng. J. 2019, 370, 973. "Single-crystalline Co2Si nanowires directly synthesized on silicon substrate for high-performance micro-supercapacitor" (*corresponding author),
4) H. Yoon,* J. Mater. Chem. A, 2015, 3, 23323., “Pseudocapacitive slurry electrodes using redox-active quinone for high-performance flow capacitors: an atomic-level understanding of pore texture and capacitance enhancement” (*first & corresponding author),
5) H.Yoon* et. al. ACS Appl. Energy Mater. 2020, 3, 7844 "Nano-confinement effects on enhanced reversibility of redox reactions coupled with an irreversible chemical process by electrolysis acceleration in nanoporous carbon electrodes for redox-enhanced electrochemical capacitor" (*corresponding author),
6) H. Yoon* et. al. Microporous Mesoporous Mater, 2018, 261, 119., “Self-templated synthesis of interconnected porous carbon nanosheets with controllable pore size: Mechanism and electrochemical capacitor application” (*corresponding author),
7) H. Yoon et. al. Adv. Mater. 2009, 21, 4979. “Vertical Epitaxial Co5Ge7 Nanowire and Nanobelt Arrays on a Thin Graphitic Layer for Flexible Field Emission Display”. (first author),
8) H. Yoon* et. al. J. Am. Chem. Soc. 2010, 132, 17447., “Structure-induced Ferromagnetic Stabilization in Freestanding Hexagonal Fe1.3Ge Nanowires”. (*first author), 9) H. Yoon* et. al., ACS Nano 2010, 4, 2569., “Itinerant Helimagnetic Single-Crystalline MnSi Nanowires”. (*co-first author)

- 650℃ 이하 구동이 가능한 고강도 고내구성 SOFC 셀 개발
- 열/부하 사이클 동시 대응 고내구성 SOFC 스택 원천 기술개발
- 저온 작동(650℃) 직접 암모니아 연료전지용(SOFC) 나노 촉매소재 및 연료전지 기술 개발
- 고체산화물연료전지 분리판용 특수강 신소재 및 양산 기술 개발
- 페라이트계 스테인리스 금속지지체를 기반으로 한 금속지지형 SOFC 셀/스택 기술 개발
- 200kW 이상급 발전용 중저온형 고체산화물연료전지 시스템 개발

● S.-B. Lee* et al, “Facile surface modification of LSCF/GDC cathodes by epitaxial deposition of Sm0.5Sr0.5CoO3via ultrasonic spray infiltration”, J. Mater. Chem. A, 2020, 8, 3967-3977
● S.-B. Lee* et al, “Hybrid Electrochemical Deposition Route for the Facile Nanofabrication of a Cr-Poisoning-Tolerant La(Ni,Fe)O3？δ Cathode for Solid Oxide Fuel Cells”, ACS Appl. Mater. Interfaces 2020, 12, 5, 5730-5738
● S.-B. Lee* et al, “A dynamic infiltration technique to synthesize nanolayered cathodes for high performance and robust solid oxide fuel cells”, Journal of Energy Chemistry, Volume 70, July 2022, Pages 201-210
● S.-B. Lee* et al, “High-performance nanofibrous LaCoO3 perovskite cathode for solid oxide fuel cells fabricated via chemically assisted electrodeposition”, J. Mater. Chem. A, 2018, 6, 6987-6996
● S.-B. Lee* et al, “Nano-fabrication of a high-performance LaNiO3 cathode for solid oxide fuel cells using an electrochemical route”, Journal of Power Sources, Volume 429, 31 July 2019, Pages 97-104
● S.-B. Lee* et al, “Parametric study on electrodeposition of a nanofibrous LaCoO3 SOFC cathode”, Ceramics International, Volume 47, Issue 4, 15 February 2021, Pages 5570-5579

1. 중대형 상용차용 연료전지시스템 전용 전극기술 개발
2. 수소연료전지용 가스켓 원천소재 및 부품/스택 연계 기술 개발
3. 고분자연료전지 핵심 소재·부품·장비 연계 국산화 기술 개발 지원

1. First-principle-data-integrated machine-learning approach for high-throughput searching of ternary electrocatalyst toward oxygen reduction reaction, Chem Catalysis 1 (4), 855-869

2. Sonochemical gram-scale synthesis of core？shell PdCo@ Pt nanoparticle and investigation of post heat-treatment effect for various gas atmospheres, Journal of Alloys and Compounds 879, 160441

3. High pressure nitrogen-infused ultrastable fuel cell catalyst for oxygen reduction reaction, ACS Catalysis 11 (9), 5525-5531

4. Superior Oxygen Electrocatalysis on RuSex Nanoparticles for Rechargeable Air Cathodes, Advanced Energy Materials 8 (8), 1702037

5. Multi-component electrocatalyst for low-temperature fuel cells synthesized via sonochemical reactions, Ultrasonics Sonochemistry 29, 401-412

6. Effects of particle proximity and composition of Pt？M (M= Mn, Fe, Co) nanoparticles on electrocatalysis in methanol oxidation reaction, Journal of Power Sources 294, 75-81

7. Rational syntheses of core？shell Fe@(PtRu) nanoparticle electrocatalysts for the methanol oxidation reaction with complete suppression of CO-poisoning and highly enhanced activity, Journal of Materials Chemistry A 3 (33), 17154-17164