Search Results - "Choi, Joon Hwan"

Easily Scalable Shell‐Structured Copper Catalyst with High Activity and Durability for Carbon Dioxide Hydrogenation by Kim, Gunjoo, Ryu, Seung‐Hee, Jeong, Hojin, Choi, Yunji, Lee, Seungwoo, Choi, Joon‐Hwan, Lee, Hyunjoo

“…Inducing strong metal‐support interaction (SMSI) has been a useful way to control the structure of surface active sites. The SMSI often causes the…”
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Enhanced Stability of Spatially Confined Copper Nanoparticles in an Ordered Mesoporous Alumina for Dimethyl Ether Synthesis from Syngas by Ham, Hyungwon, Kim, Jihyeon, Cho, Sung June, Choi, Joon-Hwan, Moon, Dong Ju, Bae, Jong Wook

“…A spatial confinement effect of copper nanoparticles in an ordered mesoporous γ-Al2O3, which is synthesized by an evaporation induced self-assembly (EISA)…”
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Heterostructures in two-dimensional colloidal metal chalcogenides: Synthetic fundamentals and applications by Min, Yuho, Im, Eunmi, Hwang, Geon-Tae, Kim, Jong-Woo, Ahn, Cheol-Woo, Choi, Jong-Jin, Hahn, Byung-Dong, Choi, Joon-Hwan, Yoon, Woon-Ha, Park, Dong-Soo, Hyun, Dong Choon, Moon, Geon Dae

“…As a new class of two-dimensional materials, two-dimensional (2D) heterostructures constructed from metal chalcogenides (MCs) have been gaining tremendous…”
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Aerosol deposition of hydroxyapatite–chitosan composite coatings on biodegradable magnesium alloy by Hahn, Byung-Dong, Park, Dong-Soo, Choi, Jong-Jin, Ryu, Jungho, Yoon, Woon-Ha, Choi, Joon-Hwan, Kim, Hyoun-Ee, Kim, Seong-Gon

“…Magnesium (Mg) and its alloys are potential biometallic materials for their good biocompatibility and excellent biological performances. However, Mg alloys…”
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Selective Phase Control of Dopant-Free Potassium Sodium Niobate Perovskites in Solution by Park, Seonhwa, Peddigari, Mahesh, Kim, Jung Hwan, Kim, Eunae, Hwang, Geon-Tae, Kim, Jong-Woo, Ahn, Cheol-Woo, Choi, Jong-Jin, Hahn, Byung-Dong, Choi, Joon-Hwan, Yoon, Woon-Ha, Park, Dong-Soo, Park, Kwi-Il, Jeong, Chang Kyu, Lee, Jung Woo, Min, Yuho

“…As one of the perovskite families, potassium sodium niobates (K1–x Na x )­NbO3 (KNN) have been gaining tremendous attention due to their various functional…”
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Development of high durability plasma filter for air circulating disinfection system by Park, Joo Young, Baek, Ki Ho, Kim, Sang-jin, Choi, Joon-Hwan, Yoon, Hyunkyung, Park, Hunkwan, Kim, Giyeong, Lee, Seunghun

“…Deadly diseases are caused by pathogenic bacteria and viruses that spread, among other means, through air circulating systems; hence, it is important to focus…”
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A new action potential detector using the MTEO and its effects on spike sorting systems at low signal-to-noise ratios by Choi, Joon Hwan, Jung, Hae Kyung, Kim, Taejeong

“…This paper considers neural signal processing applied to extracellular recordings, in particular, unsupervised action potential detection at a low…”
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A Comparison Study of Fatigue Behavior of Hard and Soft Piezoelectric Single Crystal Macro-Fiber Composites for Vibration Energy Harvesting by Peddigari, Mahesh, Kim, Ga-Yeon, Park, Chan Hee, Min, Yuho, Kim, Jong-Woo, Ahn, Cheol-Woo, Choi, Jong-Jin, Hahn, Byung-Dong, Choi, Joon-Hwan, Park, Dong-Soo, Hong, Jae-Keun, Yeom, Jong-Taek, Park, Kwi-Il, Jeong, Dae-Yong, Yoon, Woon-Ha, Ryu, Jungho, Hwang, Geon-Tae

“…Designing a piezoelectric energy harvester (PEH) with high power density and high fatigue resistance is essential for the successful replacement of the…”
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A composition design rule for crystal growth of centimeter scale by normal sintering process in modified potassium sodium niobate ceramics by Rahman, Attaur, Cho, Kyung-Hoon, Ahn, Cheol-Woo, Ryu, Jungho, Choi, Jong-Jin, Kim, Jong-Woo, Yoon, Woon-Ha, Choi, Joon-Hwan, Park, Dong-Soo, Hahn, Byung-Dong

“…It has been reported that single crystals could be grown by normal sintering process, without the addition of a seed, in (K,Na)NbO3 (KNN)-based ceramics. The…”
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Effect of Cathode Microstructure on Electrochemical Properties of Sodium Nickel-Iron Chloride Batteries by Ahn, Byeong-Min, Ahn, Cheol-Woo, Hahn, Byung-Dong, Choi, Jong-Jin, Kim, Yang-Do, Lim, Sung-Ki, Choi, Joon-Hwan

“…Sodium metal chloride batteries have become a substantial focus area in the research on prospective alternatives for battery energy storage systems (BESSs)…”
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Microstructure and electrochemical properties of graphite and C-coated LiFePO4 films fabricated by aerosol deposition method for Li ion battery by Ahn, Cheol-Woo, Choi, Jong-Jin, Ryu, Jungho, Hahn, Byung-Dong, Kim, Jong-Woo, Yoon, Woon-Ha, Choi, Joon-Hwan, Park, Dong-Soo

“…The aerosol deposition (AD) method is the room temperature process for the formation of thin/thick film. Graphite (for anode, thickness: 250nm) and C-coated…”
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Enhancement of washcoat adhesion for SCR catalysts to convert nitrogen oxide using powder spray coating of TiO2 on metallic honeycomb substrate by Hwang, Jiseop, Ha, Ho-Jung, Ryu, Jungho, Choi, Jong-Jin, Ahn, Cheol-Woo, Kim, Jong-Woo, Hahn, Byung-Dong, Yoon, Woon-Ha, Lee, Heesoo, Choi, Joon-Hwan

“…A novel powder spray coating method was applied to form intermediate layers on metallic honeycomb substrates to improve the adhesion property of ceramic-based…”
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Seed crystal of modified potassium sodium niobate prepared by simple molten salt synthesis by Rahman, Attaur, Cho, Kyung‐Hoon, Ahn, Cheol‐Woo, Ryu, Jungho, Choi, Jong‐Jin, Kim, Jong‐Woo, Yoon, Woon‐Ha, Choi, Joon‐Hwan, Park, Dong‐Soo, Hahn, Byung‐Dong

“…Recently, an interesting phenomenon has been reported in (K,Na)NbO3 (KNN)‐based ceramics. That is the growth of huge grains (10‐30 mm) which is a kind of…”
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Self-Growth of Centimeter-Scale Single Crystals by Normal Sintering Process in Modified Potassium Sodium Niobate Ceramics by Ahn, Cheol-Woo, Lee, Ho-Yong, Han, Guifang, Zhang, Shujun, Choi, Si-Young, Choi, Jong-Jin, Kim, Jong-Woo, Yoon, Woon-Ha, Choi, Joon-Hwan, Park, Dong-Soo, Hahn, Byung-Dong, Ryu, Jungho

“…In this manuscript, an interesting phenomenon is reported. That is the self-growth of single crystals in Pb-free piezoelectric ceramics. These crystals are…”
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Microstructure and electrochemical properties of iron oxide film fabricated by aerosol deposition method for lithium ion battery by Ahn, Cheol-Woo, Choi, Jong-Jin, Ryu, Jungho, Hahn, Byung-Dong, Kim, Jong-Woo, Yoon, Woon-Ha, Choi, Joon-Hwan, Park, Dong-Soo

“…The microstructure and electrochemical properties of Fe2O3 films, which are fabricated by an aerosol deposition (AD) method, are investigated in this study…”
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Enhanced Adhesion Strength of Pt/γ-Al2O3 Catalysts on STS-444 Substrate via γ-Al2O3 Intermediate Layer Formation: Application for CO and C3H6 Oxidation by Seung-Hee Ryu, Cheol Hong Hwang, Hojin Jeong, Giyeong Kim, Sung Il Ahn, Joon Sik Park, Joon-Hwan Choi

“…Pt/γ-Al2O3 catalysts coated on honeycomb-shaped stainless STS-444 steel substrates with a γ-Al2O3 intermediate layer were prepared using a conventional…”
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Effect of Fe substitution on electrochemical properties of Sn3.95Fe0.05P3 alloy anode for lithium ion batteries by Park, Gumjae, Lee, Chulho, Lee, Jueun, Choi, Joon Hwan, Lee, Yun-Sung, Lee, Sang-Min

“…•The Sn3.95Fe0.05P3 alloy was synthesized via the solvothermal method.•Fe was successfully substituted on a Sn4P3 layered structure without any structure…”
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Improvement of Simple Test Cell Design for Cathode Microstructure Study in Tubular-Type Sodium–Metal Chloride Batteries by Ahn, Byeong-Min, Ahn, Cheol-Woo, Hahn, Byung-Dong, Choi, Jong-Jin, Kim, Yang-Do, Lim, Sung-Ki, Choi, Joon-Hwan

“…Sodium–metal chloride batteries are suitable alternatives in battery energy storage systems (BESSs), since they are widely known as a type of high-safety…”
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Effects of Ni particle morphology on cell performance of Na/NiCl2 battery by Kim, Mangi, Ahn, Cheol-Woo, Hahn, Byung-Dong, Jung, Keeyoung, Park, Yoon-Cheol, Cho, Nam-ung, Lee, Heesoo, Choi, Joon-Hwan

“…Electrochemical reaction of Ni particle, one of active cathode materials in the Na/NiCl2 battery, occurs on the particle surface. The NiCl 2 layer formed on…”
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Influence of Carbon Coating on Beta-Alumina Membrane for Sodium-Nickel Chloride Battery by Kim, Seon-Min, Lee, Sang-Min, Jung, Keeyoung, Park, Yoon-Cheol, Cho, Nam-ung, Choi, Joon-Hwan, Kim, Hyun-Soo

“…Sodium–nickel chloride batteries have been used as energy storage devices because of their high operating voltage, ease of assembly in a discharged state, the…”
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