Search Results - "Otomo, Junichiro"

Electrode-Supported Protonic Ceramic Electrolysis Cells for Electrochemically Promoted Ammonia Synthesis at Intermediate Temperatures by Okazaki, Moe, Otomo, Junichiro

“…Protonic ceramic electrolysis cells (PCECs) have attracted attention for their applications in electrochemical ammonia synthesis, but their low Faradaic…”
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CO2 activation by methane in a dual-bed configuration via methane cracking and iron oxide lattice oxygen transport – Concept and materials development by Keller, Martin, Matsuzaki, Yoshio, Otomo, Junichiro

“…[Display omitted] •CO2 activation by CH4 in a dual bed via CH4 cracking and Fe oxide redox cycle.•Calculations show high potential: 3.7 mol CO/mol of CH4 with…”
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Techno-economic evaluation of BECCS via chemical looping combustion of Japanese woody biomass by Keller, Martin, Kaibe, Kenji, Hatano, Hiroyuki, Otomo, Junichiro

“…•Techno-economic analysis of entire BECCS-CLC chain for Japanese woody biomass.•Detailed CLC reactor modeling revealed limiting factors for fuel and air…”
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Coupled analysis of performance and costs of segmented-in-series tubular solid oxide fuel cell for combined cycle system by Otomo, Junichiro, Oishi, Junya, Miyazaki, Kenya, Okamura, Shintaro, Yamada, Koichi

“…Integrated approaches that combine numerical modeling and economic evaluations were developed to investigate the potential widespread use of integrated solid…”
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Fabrication and electrochemical performance of anode-supported solid oxide fuel cells based on proton-conducting lanthanum tungstate thin electrolyte by Kojo, Gen, Wei, Xiaochu, Matsuzaki, Yoshio, Matsuo, Hiroki, Hellgardt, Klaus, Otomo, Junichiro

“…The performance of an anode-supported proton-conducting solid oxide fuel cell (p-SOFC) was investigated by controlling transport properties of thin electrolyte…”
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Evaluation of cost reduction potential for 1 kW class SOFC stack production: Implications for SOFC technology scenario by Otomo, Junichiro, Oishi, Junya, Mitsumori, Teruo, Iwasaki, Hiroshi, Yamada, Koichi

“…Recently, a commercial version of a residential solid oxide fuel cell (SOFC) system with a flat tubular cell has been developed. However, the system cost still…”
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CO production from CO2 and H2 via the rWGS reaction by thermochemical redox cycling in interconnected fluidized beds by Keller, Martin, Otomo, Junichiro

“…[Display omitted] •Efficiency of reverse water gas shift process (rWGS) via redox cycling assessed.•Two groups of redox materials evaluated, phase change and…”
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Favorable Role of the Metal–Support Perimeter Region in Electrochemical NH3 Synthesis: A Density Functional Theory Study on Ru/BaCeO3 by Ishikawa, Atsushi, Murase, Fumiya, Tateyama, Yoshitaka, Otomo, Junichiro

“…The catalytic electrochemical synthesis of NH3 on Ru/BaCeO3 was investigated using density functional theory. The competition between NH3 formation and the…”
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Glycerol electro-oxidation on a carbon-supported platinum catalyst at intermediate temperatures by Ishiyama, Keisuke, Kosaka, Fumihiko, Shimada, Iori, Oshima, Yoshito, Otomo, Junichiro

“…The electro-oxidation of glycerol on a carbon-supported platinum catalyst (Pt/C) in combination with a reaction products analysis was investigated at…”
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Reactivity improvement of ilmenite by calcium nitrate melt infiltration for Chemical Looping Combustion of biomass by Keller, Martin, Oka, Hikaru, Otomo, Junichiro

“…[Display omitted] •Chemical Looping Combustion with melt-infiltrated Ca-modified ilmenite is investigated.•Melt infiltration method achieves improved…”
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Electrochemical performance for the electro-oxidation of ethylene glycol on a carbon-supported platinum catalyst at intermediate temperature by Kosaka, Fumihiko, Oshima, Yoshito, Otomo, Junichiro

“…► High oxidation current in ethylene glycol electro-oxidation at intermediate temperature. ► High C–C bond dissociation ratio of ethylene glycol at…”
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Hydrogen production by catalytic near-critical water gasification and steam reforming of glucose by Azadi, Pooya, Otomo, Junichiro, Hatano, Hiroyuki, Oshima, Yoshito, Farnood, Ramin

“…Near-critical water gasification (NCWG) and steam reforming (SR) were investigated for the production of hydrogen from a biomass model compound (glucose) using…”
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Thermodynamic evaluation of open cycle gas turbines with carbon-free fuels H2 and NH3 at high temperatures by Martin KELLER, Mitsuo KOSHI, Junichiro OTOMO, Hiroshi IWASAKI, Teruo MITSUMORI, Koichi YAMADA

“…Due to concerns over CO2 emissions and higher efficiency requirements future power generation systems with stationary gas turbines are projected to utilize…”
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Electro-oxidation of methanol and ethanol on carbon-supported Pt catalyst at intermediate temperature by Otomo, Junichiro, Nishida, Satoru, Takahashi, Hiroshi, Nagamoto, Hidetoshi

“…Operation of a direct alcohol fuel cell (DAFC) at relatively high temperature is a key issue in this study from the standpoint of achieving high performance…”
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Phase transition and proton transport characteristics in CsH2PO4/SiO2 composites by OTOMO, Junichiro, ISHIGOOKA, Takashi, KITANO, Tomoyuki, TAKAHASHI, Hiroshi, NAGAMOTO, Hidetoshi

“…The stabilization of superprotonic phase in neat CsH2PO4 and CsH2PO4/SiO2 composites as well as the anomalous phase transformation with a large hysteresis was…”
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Ceria‑iron electrocatalysts for ammonia electrosynthesis using protonic ceramic electrolysis cells by Okazaki, Moe, Otomo, Junichiro

“…Iron has proven to be a simple yet high-performing electrode for ammonia electrosynthesis, particularly when used with protonic ceramic electrolysis cells. On…”
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Electrochemical Promotion of Ammonia Synthesis Integrated Directly with Steam Electrolysis by Okazaki, Moe, Otomo, Junichiro

“…Ammonia electrosynthesis using protonic ceramic electrolysis cells (PCECs) is predominantly conducted from hydrogen and nitrogen, necessitating a separate…”
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Fast proton transport in zinc phosphorous glass composites by Furuhashi, Yuma, Shimada, Iori, Otomo, Junichiro, Oshima, Yoshito

“…► Proton conduction in various TiO 2–ZnO–P 2O 5 systems at intermediate temperatures. ► P 2O 5-excess non-stoichiometric Ti 1− x Zn x P 2O 7 shows high…”
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Chemical kinetic modeling of ammonia oxidation with improved reaction mechanism for ammonia/air and ammonia/hydrogen/air combustion by Otomo, Junichiro, Koshi, Mitsuo, Mitsumori, Teruo, Iwasaki, Hiroshi, Yamada, Koichi

“…To achieve comprehensive prediction of ammonia combustion in terms of flame speed and ignition delay time, an improved mechanism of ammonia oxidation was…”
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Preparation and characterization of proton-conducting CsHSO4–SiO2 nanocomposite electrolyte membranes by Wang, Shuqiang, Otomo, Junichiro, Ogura, Masaru, Wen, Ching-ju, Nagamoto, Hidetoshi, Takahashi, Hiroshi

“…Microstructures and conductivity characteristics were investigated in proton-conducting CsHSO4–SiO2 composite electrolyte membranes prepared by CsHSO4 melt…”
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