Hoyoung Kim

ORCID: 0000-0002-5580-6373
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About
Contact & Profiles
Research Areas
  • Electrocatalysts for Energy Conversion
  • Advanced battery technologies research
  • Fuel Cells and Related Materials
  • Hybrid Renewable Energy Systems
  • CO2 Reduction Techniques and Catalysts
  • Metallurgy and Material Forming
  • 3D IC and TSV technologies
  • Metal Alloys Wear and Properties
  • Carbon dioxide utilization in catalysis
  • Cloud Computing and Remote Desktop Technologies
  • Catalytic Processes in Materials Science
  • Environmental Impact and Sustainability
  • Innovative Energy Harvesting Technologies
  • Advanced Thermoelectric Materials and Devices
  • Catalysis and Oxidation Reactions
  • Electrochemical Analysis and Applications
  • Ammonia Synthesis and Nitrogen Reduction
  • Electric and Hybrid Vehicle Technologies
  • Vibration Control and Rheological Fluids
  • Interconnection Networks and Systems
  • Personal Information Management and User Behavior
  • Nanomaterials for catalytic reactions
  • Bluetooth and Wireless Communication Technologies
  • Electric Motor Design and Analysis
  • Electric Vehicles and Infrastructure

Korea Advanced Institute of Science and Technology
2009-2024

Chung-Ang University
2016-2023

SUNY Korea
2022

Hyundai Kefico (South Korea)
2021

Government of the Republic of Korea
2017

Korea Telecom (South Korea)
2017

Korea Institute of Materials Science
2017

University of Colorado Denver
2017

Samsung (South Korea)
2011-2013

Korea Aerospace Research Institute
2009

A highly active and stable 3D dandelion spore-structured self-supporting Ir-based electrocatalyst for proton exchange membrane water electrolysis fabricated using structural reconstruction.

10.1039/d2ee01042a article EN Energy & Environmental Science 2022-01-01

A hierarchical NixW100–x/Cu nanowire (NW) catalyst for the acidic hydrogen evolution reaction was electrochemically fabricated on carbon paper (CP) practical applications of a proton exchange membrane water electrolyzer (PEMWE). The Ni and W contents in catalysts were controlled by adjusting concentration precursors during electrodeposition. as-prepared had an amorphous structure due to addition W. activities NW/CP evaluated evolution. Ni96W4/Cu highest intrinsic activity among with...

10.1021/acssuschemeng.8b06643 article EN ACS Sustainable Chemistry & Engineering 2019-03-28

Heterointerface engineering is an effective strategy to enhance electrocatalytic activity for water splitting by binding two different materials. Specifically, it offers prospects in creating viable transition-metal-based anode materials catalyzing...

10.1039/d4ta09280e article EN Journal of Materials Chemistry A 2025-01-01

Direct self-terminated Pt electrodeposition on carbon paper enables precise control of loading mass, from the sub-microgram to sub-milligram scale. This can provide insight into low limits use for reasonable performance a proton exchange membrane water electrolyzer.

10.1039/c7nr07224d article EN Nanoscale 2017-01-01

To realize nonprecious-metal catalysts with practical applicability for the hydrogen evolution reaction (HER), improved corrosion resistance and catalytic activity are required. In this study, composition-controlled Co-Cu alloys were fabricated by electrodeposition use as HER in proton exchange membrane water electrolyzers (PEMWEs). As Cu content alloy increased, morphology changed from needle-shaped particles to small round particles. Furthermore, a phase transition hexagonal close-packed...

10.1002/er.5099 article EN International Journal of Energy Research 2019-12-30

Mobile DRAM is widely employed in portable electronic devices due to its feature of low power consumption. Recently, as the market trend renders integration various features one chip, mobile required have not only consumption but also high capacity and speed. To attain these goals DRAM, we designed a 1Gb single data rate (SDR) Wide-I/O SDRAM with 4 channels 512 DQ pins, featuring 12.8GB/s bandwidth.

10.1109/isscc.2011.5746413 article EN 2011-02-01

Sulfonated mesoporous benzene-silicas were introduced into a poly(vinyl alcohol) (PVA) polymer matrix to act as barrier for methanol crossover, prepare composite electrolyte membranes direct fuel cell applications. Highly ordered 2D hexagonal prepared using 1,4-bis(triethoxysilyl)benzene (BTEB) organosilica precursor and two kinds of organic templates, such an octadecyltrimethylammonium bromide (ODTMA) Pluronic P123 poly(ethylene oxide)−poly(propylene oxide)−poly(ethylene oxide)...

10.1021/jp9006763 article EN The Journal of Physical Chemistry B 2009-07-01

The design of robust and high-performance hydrogen evolution reaction (HER) catalysts is crucial for the scalable production by electrochemical water splitting. In this work, we fabricated hierarchically porous Co-Ru with excellent catalytic activity durability in acidic media. morphology was successfully controlled through an optimized process. Among all samples prepared study, Co72Ru28 catalyst exhibited largest surface area, as well HER (overpotential 26.4 mV at −10 mA cm−2) durability....

10.1002/er.7699 article EN International Journal of Energy Research 2022-02-01

In recent years, 3D technology has been a popular area of study that allowed researchers to explore number novel computer architectures. One the more topics is integrating main memory dies below computing die and connecting them with through-silicon vias (TSVs). This assumed reduce off-chip access latencies by roughly 45% 60%. Our detailed circuit-level models, however, demonstrate this latency reduction from TSVs significantly less. paper, we present these compare 2D latencies, show in...

10.1109/aspdac.2013.6509675 article EN 2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) 2013-01-01
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