Faculty Profiles - HIBINO, Takashi

Papers - HIBINO, Takashi

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ELECTROCHEMICAL HYDROGEN PERMEATION IN A PROTON-HOLE MIXED CONDUCTOR AND ITS APPLICATION TO A MEMBRANE REACTOR Reviewed

HAMAKAWA S, HIBINO T, IWAHARA H

JOURNAL OF THE ELECTROCHEMICAL SOCIETY Vol. 141 ( 7 ) page： 1720 - 1725 1994.7

Electrochemical Hydrogen Permeation in a Proton-Hole Mixed Conductor and Its Application to a Membrane Reactor Reviewed

Hamakawo S., Hibino T., Iwahara H.

Journal of the Electrochemical Society Vol. 141 ( 7 ) page： 1720 - 1725 1994.7

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Journal of the Electrochemical Society

A proton-hole mixed conduction in SrCe0.95Yb005O3_α ceramic has been studied under an asymmetrical atmosphere with respect to hydrogen species. The following electrochemical cell was constructed; (I) 1% hydrogen, Pt I specimen ceramic Pt, O2-Ar mixture (II) and electrochemical hydrogen permeation through this sample was examined under open and closed-circuit conditions. When the circuit was closed, the hydrogen or water vapor evolution rates at the cathode decreased with increasing partial pressure of oxygen in the cathode. From the conductivity measurement under various po2, it was confirmed that the main charge carrier except protons was a positive hole, and that this ceramic behaved as a proton-hole mixed conductor under the asymmetrical condition. When the circuit was open, water vapor evolved spontaneously, and its formation rates were enhanced with increasing po2, in compartment (II). These phenomena indicate that this cell is a self-short-circuited via hole conduction in the bulk, and that hydrogen permeates electrochemically from compartment (I) to (II). Further, based on the principle of hydrogen permeation due to the proton-hole mixed conduction, CH4 dimerization was carried out at 1173 K using SrCe0.95Yb0.05O3_a ceramic as a membrane reactor. Formation rates of C2-hy-drocarbons were enhanced markedly by self-short-circuiting the electrochemical reactor due to the mixed conduction. To clarify the mechanism for the acceleration of CH4 dimerization, the electrolytic synthesis of ethane from CH4 was carried out at 948 K using SrCe0.95Yb0.05O3-α, ceramic as a membrane reactor. © 1994, The Electrochemical Society, Inc. All rights reserved.

DOI： 10.1149/1.2054993

Scopus

SOLID OXIDE FUEL-CELL WHICH CAN WORK IN UNIFORM-GAS PHASE USING PARTIAL OXIDATION OF METHANE Reviewed

HIBINO T, ASANO K, IWAHARA H

NIPPON KAGAKU KAISHI ( 7 ) page： 600 - 604 1994.7

ELECTROCHEMICAL REMOVAL OF NO AND CH4 FROM OXIDIZING ATMOSPHERE Reviewed

HIBINO T

CHEMISTRY LETTERS ( 5 ) page： 927 - 930 1994.5

ELECTROLYTIC SYNTHESIS OF ETHANE USING A PROTON CONDUCTING CERAMIC BASED ON SRCEO3 Reviewed

HAMAKAWA S, HIBINO T, IWAHARA H

DENKI KAGAKU Vol. 62 ( 4 ) page： 346 - 347 1994.4

A HYDROCARBON SENSOR USING A HIGH TEMPERATURE-TYPE PROTON CONDUCTOR Reviewed

HIBINO T, IWAHARA H

JOURNAL OF APPLIED ELECTROCHEMISTRY Vol. 24 ( 3 ) page： 268 - 270 1994.3

A hydrocarbon sensor using a high temperature-type proton conductor Reviewed

Hibino T., Iwahara H.

Journal of Applied Electrochemistry Vol. 24 ( 3 ) page： 268 - 270 1994.3

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Journal of Applied Electrochemistry

Using a CaZrO3-based proton conductor as a solid electrolyte, a hydrocarbon sensor has been constructed. The test cell with gold metal and La0.6Ba0.4CoO3 oxide as electrode material gives rise to stable e.m.f.'s on introducing air containing hydrocarbons (CH4, C2H6 or C3H8). This sensing mechanism is based on a steam concentration cell, which results from the difference in combustion activity for hydrocarbons between two electrode materials. © 1994 Chapman & Hall.

DOI： 10.1007/BF00242895

Scopus

IMPROVEMENT OF CAPCIUS CELL USING SRCE0.95YB0.05O3-ALPHA AS A SOLID-ELECTROLYTE Reviewed

HIBINO T, ASANO K, IWAHARA H

CHEMISTRY LETTERS ( 3 ) page： 485 - 488 1994.3

Recycling of carbon dioxide using a proton conductor as a solid electrolyte Reviewed

Hibino T., Hamakawa S., Suzuki T., Iwahara H.

Journal of Applied Electrochemistry Vol. 24 ( 2 ) page： 126 - 130 1994.2

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Journal of Applied Electrochemistry

Using a proton conductor based on SrZrO3 or CaZrO3 as a solid electrolyte, three attempts have been made to react CH4 with CO2 efficiently. When the mixture of CH4 and CO2 was used as a fuel gas for a SOFC, the cell provided stable electric power. Furthermore, the electrochemical hydrogen pump accelerated both the reforming of CH4 with CO2 and the oxidative coupling of CH4 with CO2. © 1994 Chapman & Hall.

DOI： 10.1007/BF00247783

Scopus

RECYCLING OF CARBON-DIOXIDE USING A PROTON CONDUCTOR AS A SOLID-ELECTROLYTE Reviewed

HIBINO T, HAMAKAWA S, SUZUKI T, IWAHARA H

JOURNAL OF APPLIED ELECTROCHEMISTRY Vol. 24 ( 2 ) page： 126 - 130 1994.2

Reactant Shape-selectivity for Cracking of Linear Paraffin on HZSM-5 Modified by CVD of Silicon Alkoxide: A Strong Dependence upon the Reaction Temperature Reviewed

Niwa M., Senoh N., Hibino T., Nakatsuka Y., Murakami Y.

Studies in Surface Science and Catalysis Vol. 83 ( C ) page： 155 - 162 1994.1

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Studies in Surface Science and Catalysis

Chemical vapor deposition (CVD) method of silicon alkoxide was applied to HZSM-5 zeolite in order to enhance the shape-selectivity in cracking of octane isomers. Adsorption experiments using octane and 3-methylheptane showed that silica deposited on the external surface controlled the pore-opening size finely to retard the diffusion of 3-methylheptane only. Shape-selectivity for cracking of linear paraffin was observed at 773 K, but not at lower temperatures; a strong temperature dependence was observed. Mechanism of cracking on HZSM-5 was so complex, and strongly held residues such as large olefinic compounds seemed to retard the reaction at lower temperatures. This was, however, substantial, because cracking of paraffin is usually performed at higher temperatures. © 1994 Kodansha Ltd.

DOI： 10.1016/S0167-2991(08)63253-X

Scopus

Recycling of carbon dioxide using a proton conductor as a solid electrolyte Reviewed

Takashi Hibino, Satoshi Hamakawa, T. Suzuki, Hiroyasu Iwahara

Journal of Applied Electrochemistry Vol. 24 page： 126-130 1994

Detection of D2O in water isotopes using a high-temperature protonic conductor Reviewed

Takashi Hibino, Hiroyasu Iwahara

Journal of the Electrochemical Society Vol. 141 page： L125-L126 1994

Electrochemical hydrogen permeation in a proton-hole mixed conductor and its application to a membrane reactor Reviewed

Satoshi Hamakawa, Takashi Hibino, Hiroyasu Iwahara

Journal of the Electrochemical Society Vol. 141 page： 1720-1725 1994

メタンの部分酸化反応を利用した均一ガス作動型燃料電池 Reviewed

日比野高士、浅野浩一、岩原弘育

日本化学会誌 page： 600-604 1994

Electrochemical removal of NO and CH4 from oxidizing atmosphere Reviewed

Takashi Hibino

Chemistry Letters page： 927-930 1994

Improvement of CAPCIUS cell using SrCe0.95Yb0.05O3-α as a solid electrolyte Reviewed

Takashi Hibino, Koichi Asano, Hiroyasu Iwahara

Chemistry Letters page： 485-488 1994

A hydrocarbon sensor using a high temperature-type proton conductor Reviewed

Takashi Hibino, Hiroyasu Iwahara

Journal of Applied Electrochemistry Vol. 24 page： 268-270 1994

Amperometric sensor for measurement of D2O concentration in mixture of H2O and D2O using high temperature protonic conductor Reviewed

Takashi Hibino, Hiroyasu Iwahara

Solid State Ionics Vol. 74 page： 285-290 1994

The Hydrogen Isotope Separation by the Steam Electrolysis Using the High Temperature-Type Protonic Conductor Reviewed

Hibino T., Iwahara H.

Nippon Kagaku Kaishi Vol. 1994 ( 6 ) page： 518 - 523 1994

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Nippon Kagaku Kaishi

The hydrogen isotope separation was carried out by the steam electrolysis using the high temperature-type protonic conductor as a solid electrolyte at 900 °C. The total current and the electrolytic amount were reduced by replacing gaseous H2O with D2O. This was based on the increase in resistances of the bulk, anodic and cathodic reactions. The TPD (Temperature Programmed Desorption) and complex impedance methods suggested that the increase in bulk resistance was attributed to the decrease in mobility of the charge carrier. H2 was preferentially produced at the cathode by electrolyzing the mixture of gaseous H2O and D2O. In this case, the H/D atomic ratio for the gas evolved at the cathode was 1.61, and the separation factor was 1.44. © 1994, The Chemical Society of Japan. All rights reserved.

DOI： 10.1246/nikkashi.1994.518

Scopus

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