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September, 2024, Vol.33 No 5
In this study, we proposed various catalysts and synthetic methods to enhance hydrogen production efficiency in the methane pyrolysis process, aiming to replace precious metal catalysts. Notably, nickel-based nanocomposites demonstrated excellent pyrolysis performance with high activity. Specifically, Ni-Co and Ni-CNT nanocomposites were successfully synthesized using a triple thermal plasma system. The nickel-based alloy catalysts exhibited higher hydrogen selectivity compared to pure nickel. This study highlights the potential of synthesizing nickel-based nanocomposites using a triple thermal plasma system for methane pyrolysis.
Articles
< PreviousApplied Science and Convergence Technology 2024; 33(5): 108~155Next >
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Cryogenic Etching in Advanced Electronics Manufacturing: Applications and Challenges
Kyongnam Kim
∗
Department of Semiconductor Engineering, Daejeon University, Daejeon 34520, Republic of Korea
ASCT 2024; 33(5): 108-116
Keywords : Cryogenic etching, Silicon deep etching, Low-k materials, Anisotropic etching, Black silicon
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Frontiers in Point-of-Care Testing: A Comprehensive Review
Hafsa Huma , Maryam Shabbir , Sung Eun Seo , and Oh Seok Kwon
aDepartment of Nanoscience and Technology, Sungkyunkwan University, Suwon 16419, Republic of Korea
bSKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
cDepartment of Nano Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea ASCT 2024; 33(5): 117-125 Keywords : Point-of-care testing, Polymerase chain reaction, Bio-microelectromechanical system, Graphene field-effect transistor, Lateral flow assay -
Precursor Control for Air-Processable Anti-Solvent-Free Perovskite Photovoltaic Cells in High-Humidity Condition
Kyungmin Lee and Hyo Jung Kim
aSchool of Chemical Engineering, Pusan National University, Busan 46241, Republic of Korea
bDepartment of Organic Materials Science and Engineering, College of Engineering, Pusan National University, Busan 46241, Republic of Korea ASCT 2024; 33(5): 126-129 Keywords : Perovskite, Additive engineering, Photovoltaic, Air process -
Analysis of Gas Detection Sensitivity of a Self Plasma-Optical Emission Spectrometer Using an N2 and Ar Gas-Mixing Evaluation System
Geon Woong Eom , Sang Ho Lee , In Yong Park , Woo Seok Kang , Min Hur , and Dae-Woong Kim
aSemiconductor Manufacturing Research Center, Korea Institute of Machinery and Materials, Daejeon 34103, Republic of Korea
bDepartment of Physics, Chungnam National University, Daejeon 34134, Republic of Korea ASCT 2024; 33(5): 130-134 Keywords : Self plasma-optical emission spectrometer, Sensitivity, Limit of detection, Trace gas analysis, Residual gas analysis -
Study on Nickel-Based Catalysts for Methane Pyrolysis Using Thermal Plasma
Hyeokjun Kang , Hyun Jun Kang , Hyeyoung Ko , Yong Hee Lee , and Sooseok Choi
aFaculty of Applied Energy System, Jeju National University, Jeju 63243, Republic of Korea
bUNISEM Co. Ltd., Hwaseong 18510, Republic of Korea
cInstitute for Nuclear Science and Technology, Jeju 63243, Republic of Korea ASCT 2024; 33(5): 135-139 Keywords : Thermal plasma, Methane pyrolysis, Nanocomposite, Nickel, Catalysts -
Room-Temperature Synthesis and Tuning Optical Properties of CsPbBr3 Nanocrystals via Ligand-Assisted Reprecipitation
Jun Yeong Heo , Duy Hoang Nguyen , Dong Gwon Heo , Sung Hun Kim , and Hong Seok Lee ∗
Department of Physics, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
ASCT 2024; 33(5): 140-143
Keywords : Perovskite nanocrystals, CsPbBr3, Ligand-assisted reprecipitation, Dissolution time, Optical properties
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Impact of Gate and Drain Distance on Device Characteristics in InAlGaN/GaN High Electron Mobility Transistors
Ilgyu Choi∗ , Sung-Jae Chang , Dohyun Kim , Jong-Won Lim , Dong-Min Kang , Hyun-Wook Jung , and Ho-Kyun Ahn
RF/Power Components Research Section, Electronics and Telecommunication Research Institute, Daejeon 34129, Republic of Korea
ASCT 2024; 33(5): 144-147
Keywords : Gallium nitride, High electron mobility transistors, Thin barrier, Short-channel effects, Gate-drain distance
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Investigation of NiSi Contacts on n-Type Gallium Nitride Using Low-Temperature Annealing
Dohyun Kim , Min Choi , Tae Yeon Kim , Il-Gyu Choi , Sung-Jae Chang , Hyun-Wook Jung , Ho-Kyun Ahn , and Hyun Seok Lee
aDepartment of Physics, Chungbuk National University, Cheongju 28644, Republic of Korea
bRF/Power Components Research Section, Electronics and Telecommunications Research Institute, Daejeon 34129, Republic of Korea ASCT 2024; 33(5): 148-151 Keywords : N-type gallium nitride, Ohmic contact, Low-temperature annealing -
Investigation of In Situ NH3 and N2O Plasma Treatment on AlGaN/GaN High Electron Mobility Transistors
Dohyun Kim , Hyun-Wook Jung , Sung-Jae Chang , Il-Gyu Choi , Ho-Kyun Ahn , and Hyun Seok Lee
aDepartment of Physics, Chungbuk National University, Cheongju 28644, Republic of Korea
bRF/Power Components Research Section, Electronics and Telecommunications Research Institute, Daejeon 34129, Republic of Korea ASCT 2024; 33(5): 152-155 Keywords : AlGaN/GaN, High electron mobility transistor, Plasma treatment, Surface passivation
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Application of 3D Bioprinting Technology for Tissue Regeneration, Drug Evaluation, and Drug Delivery
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ASCT 2023; 32(1): 1-6
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