Masayoshi Yuasa

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Name
Masayoshi Yuasa
Affiliation
Kindai University
Section
Faculty of Humanity-Oriented Science and Engineering Department of Biological and Environmental Chemistry

Research Interests

 
 

Research Areas

 
 

Published Papers

 
Ilnicka Anna, Lukaszewicz Jerzy P., Shimanoe Kengo, Yuasa Masayoshi
JOURNAL OF MATERIALS RESEARCH   33(11) 1612-1624   Jun 2018   [Refereed]
Suematsu Koichi, Ma Nan, Watanabe Ken, Yuasa Masayoshi, Kida Tetsuya, Shimanoe Kengo
SENSORS   18(1)    Jan 2018   [Refereed]
Kumamoto Kota, Tsuchibashi Kenta, Pramata Azzah Dyah, Yuasa Masayoshi, Shimanoe Kengo, Kida Tetsuya
JOURNAL OF PHYSICAL CHEMISTRY C   121(25) 13515-13523   Jun 2017   [Refereed]
Baldovino Fritzie Hannah B., Quitain Armando T., Dugos Nathaniel P., Roces Susan A., Koinuma Michio, Yuasa Masayoshi, Kida Tetsuya
RSC ADVANCES   7(7) 3852   2017   [Refereed]
Matsumoto Kozo, Kakehashi Miho, Ouchi Hirotaka, Yuasa Masayoshi, Endo Takeshi
MACROMOLECULES   49(24) 9441-9448   Dec 2016   [Refereed]
Suematsu Koichi, Ma Nan, Kodama Kazuya, Yuasa Masayoshi, Kida Tetsuya, Shimanoe Kengo
MATERIALS LETTERS   179 214-216   Sep 2016   [Refereed]
Suehiro Satoshi, Horita Keisuke, Pramata Azzah Dyah, Yuasa Masayoshi, Ishiwata Yoichi, Shimanoe Kengo, Kida Tetsuya
JOURNAL OF ASIAN CERAMIC SOCIETIES   4(3) 319-323   Sep 2016   [Refereed]
Yuasa Masayoshi, Suematsu Koichi, Yamada Kiyomi, Watanabe Ken, Kida Tetsuya, Yamazoe Noboru, Shirnanoe Kengo
CRYSTAL GROWTH & DESIGN   16(8) 4203-4208   Aug 2016   [Refereed]
Suematsu Koichi, Sasaki Miyuki, Ma Nan, Yuasa Masayoshi, Shimanoe Kengo
ACS SENSORS   1(7) 913-920   Jul 2016   [Refereed]
Suematsu Koichi, Kodama Kazuya, Ma Nan, Yuasa Masayoshi, Kida Tetsuya, Shimanoe Kengo
RSC ADVANCES   6(7) 5169-5176   2016   [Refereed]
Suematsu Koichi, Yamada Kiyomi, Yuasa Masayoshi, Kida Tetsuya, Shimanoe Kengo
SENSORS AND MATERIALS   28(11) 1211-1217   2016   [Refereed]
Suematsu Koichi, Shin Yuka, Ma Nan, Oyama Tokiharu, Sasaki Miyuki, Yuasa Masayoshi, Kida Tetsuya, Shimanoe Kengo
ANALYTICAL CHEMISTRY   87(16) 8407-8415   Aug 2015   [Refereed]
Suehiro Satoshi, Horita Keisuke, Yuasa Masayoshi, Tanaka Tooru, Fujita Katsuhiko, Ishiwata Yoichi, Shimanoe Kengo, Kida Tetsuya
INORGANIC CHEMISTRY   54(16) 7840-7845   Aug 2015   [Refereed]
Ma Nan, Suematsu Koichi, Yuasa Masayoshi, Shimanoe Kengo
ACS APPLIED MATERIALS & INTERFACES   7(28) 15618-15625   Jul 2015   [Refereed]
Tetsuya Kida, Hiromasa Furuso, Kota Kumamoto, Azzah Dyah Pramata, Masayoshi Yuasa, Kengo Shimanoe
Chemistry - A European Journal   21 7462-7469   May 2015
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Abstract Recently, the process by which energy is transferred from photoexcited semiconductor nanocrystals, called quantum dots (QDs), to other semiconductors has attracted much attention and has ...
Nan Ma, Koichi Suematsu, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe
ACS Applied Materials and Interfaces   7 5863-5869   Jan 2015
© 2015 American Chemical Society. The effect of water vapor on Pd-loaded SnO2 sensor was investigated through the oxygen adsorption behavior and sensing properties toward hydrogen and CO under different humidity conditions. On the basis of the the...
R. G. Pavelko, R. G. Pavelko, M. Yuasa, M. Yuasa, T. Kida, K. Shimanoe, N. Yamazoe
Sensors and Actuators, B: Chemical   210 719-725   Jan 2015
© 2015 Elsevier B.V. All rights reserved. Using the same protocol for precipitation of tin hydroxide and its hydrothermal treatment (HT), we synthesize SnO2 from three precursors - tin(IV) acetate, tin(IV) hydroxide acetate and tin(IV) chloride pe...
Tetsuya Kida, Subaru Ninomiya, Hiroki Tatsushiro, Ken Watanabe, Masayoshi Yuasa, Kengo Shimanoe
Ceramics International   41 7830-7835   Jan 2015
© 2015 Elsevier Ltd. and Techna Group S.r.l. All rights reserved. Selective oxygen separation from air was performed using perovskite-type oxide membranes made of Ba0.95La0.05FeO3-δ. We demonstrated that surface modification of Ba0.95La0.05FeO3-δ ...
Suematsu Koichi, Ma Nan, Yuasa Masayoshi, Kida Tetsuya, Shimanoe Kengo
RSC ADVANCES   5(105) 86347-86354   2015   [Refereed]
Hua Zhongqiu, Yuasa Masayoshi, Kida Tetsuya, Yamazoe Noboru, Shimanoe Kengo
CHEMISTRY LETTERS   43(9) 1435-1437   Sep 2014   [Refereed]
Koichi Suematsu, Yuka Shin, Zhongqiu Hua, Kohei Yoshida, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe
ACS Applied Materials and Interfaces   6 5319-5326   Apr 2014
Gas sensing with nanosized oxide materials is attracting much attention because of its promising capability of detecting various toxic gases at very low concentrations. In this study, using clustered SnO2 nanoparticles formed by controlled particl...
Tetsuya Kida, Aya Nishiyama, Zhongqiu Hua, Koichi Suematsu, Masayoshi Yuasa, Kengo Shimanoe
Langmuir   30 2571-2579   Mar 2014
Tungsten trioxide (WO3) is one of the important multifunctional materials used for photocatalytic, photoelectrochemical, battery, and gas sensor applications. Nanostructured WO3 holds great potential for enhancing the performance of these applicat...
Roman G. Pavelko, Joong Ki Choi, Atsushi Urakawa, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe
Journal of Physical Chemistry C   118 2554-2563   Feb 2014
Water isotope exchange in the presence of CO on two undoped tin dioxides has been studied using modulation excitation diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and resistance measurements at 300 C. Our results reveal tha...
Nguyen Viet Long, Nguyen Viet Long, Nguyen Viet Long, Nguyen Viet Long, Nguyen Viet Long, Yong Yang, Masayoshi Yuasa, Cao Minh Thi, Yanqin Cao, Thomas Nann, Masayuki Nogami, Masayuki Nogami
RSC Advances   4 8250-8255   Feb 2014
The gas sensing properties of polyhedral α-Fe2O 3 particles were investigated. The polyhedral α-Fe 2O3 particles were synthesized via a modified polyol method with the addition of an extra amount of NaBH4 in ethylene glycol, and fabricated to a th...
Nguyen Viet Long, Nguyen Viet Long, Nguyen Viet Long, Nguyen Viet Long, Nguyen Viet Long, Nguyen Viet Long, Yong Yang, Masayoshi Yuasa, Cao Minh Thi, Yanqin Cao, Thomas Nann, Masayuki Nogami, Masayuki Nogami
RSC Advances   4 6383-6390   Jan 2014
In the present research, large iron oxide microparticles with large sizes in the range of 1-5 μm have been facilely synthesized by a modified polyol method with NaBH4 as a versatile strong reducing agent. We found that the highly homogeneous iron ...
Satoshi Suehiro, Keisuke Horita, Kota Kumamoto, Masayoshi Yuasa, Tooru Tanaka, Katsuhiko Fujita, Kengo Shimanoe, Tetsuya Kida
Journal of Physical Chemistry C   118 804-810   Jan 2014
Solution-processed photovoltaic (PV) devices based on semiconductor nanocrystals (NCs) such as Cu2ZnSnS4 (CZTS) and CuInS 2 (CIS) are attracting much attention for use in next-generation solar cells. However, the performance of NC-based devices is...
Koichi Suematsu, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe, Kengo Shimanoe
Journal of the Electrochemical Society   161    Jan 2014
Oxygen adsorption plays key roles in resistive-type SnO2 gas sensors that can very sensitively detect combustible gases such as CO and hydrocarbons. Thus, exact evaluation of the electric resistance of SnO 2 in response to oxygen is important to u...
Tetsuya Kida, Shuhei Fujiyama, Koichi Suematsu, Masayoshi Yuasa, Kengo Shimanoe
Journal of Physical Chemistry C   117 17574-17582   Aug 2013
Gas sensing is an important application of metal oxides. The gas sensor response of metal oxide films is greatly influenced by particle size, pore size, thickness, and surface states. To study the effects of particle and pore sizes of sensing film...
Masayoshi Yuasa, Naoki Tachibana, Kengo Shimanoe
Chemistry of Materials   25 3072-3079   Aug 2013
Carbon-supported La1-xCaxMn1-yFe yO3 nanoparticles were synthesized, and their oxygen reduction activities and electronic states were investigated. A reverse micelle method using KMnO4 as a source of high valence state Mn successfully yielded carb...
Masayoshi Yuasa, Tsubasa Matsuyoshi, Tetsuya Kida, Kengo Shimanoe
Journal of Power Sources   242 216-221   Jun 2013
The discharge/charge performance of Li-air cell using the carbon-supported LaMn0.6Fe0.4O3 nanoparticle as a cathode catalyst was investigated in this study. The carbon-supported LaMn 0.6Fe0.4O3 nanoparticle was prepared via a reverse homogeneous p...
Masayoshi Yuasa, Takahito Nagano, Naoki Tachibana, Tetsuya Kida, Kengo Shimanoe
Journal of the American Ceramic Society   96 1789-1794   Jun 2013
A catalytic combustion-type gas sensor using a positive temperature coefficient (PTC) thermistor, which shows a sharp resistance change around Curie temperature, was developed for the detection of hydrogen. La-doped BaTiO 3 (Ba0.998 La0.002 TiO3) ...
Zhongqiu Hua, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe, Kengo Shimanoe
Thin Solid Films      May 2013
An impregnation method has been proposed to prepare Pd-loaded WO3 nanolamellae for the gas sensing application. WO3 nanolamellae were synthesized via an acidification method and impregnated with H2Pd2Cl4 solution followed by an ammonia washing tre...
Nguyen Viet Long, Nguyen Viet Long, Nguyen Viet Long, Nguyen Viet Long, Michitaka Ohtaki, Masayoshi Yuasa, Satoshi Yoshida, Taiga Kuragaki, Cao Minh Thi, Masayuki Nogami, Masayuki Nogami
Journal of Nanomaterials   2013    Apr 2013
In our present research, bottom-up self-assembly of gold (Au) nanoparticles on a flat copper (Cu) substrate is performed by a facile method. The very interesting evidence of self-assembly of Au nanoparticles on the top of the thin assembled layer ...
Tetsuya Kida, Min Hyun Seo, Koichi Suematsu, Masayoshi Yuasa, Yuichi Kanmura, Kengo Shimanoe
Applied Physics Express   6    Apr 2013
To develop a portable gas sensor with low power consumption, we deposited a micro size sensing film (100 × 100 μm2) on a Si substrate with an integrated micro heater and electrodes constructed using micro-electro- mechanical system (MEMS) technolo...
Tetsuya Kida, Hiromasa Matsufuji, Masayoshi Yuasa, Kengo Shimanoe
Langmuir   29 2128-2135   Feb 2013
In recent years, the recovery of noble metals from waste has become very important because of their scarcity and increasing consumption. In this study, we attempt the photochemical recovery of noble metals from solutions using inorganic-organic hy...
Masayoshi Yuasa, Hiroshi Imamura, Masatoshi Nishida, Tetsuya Kida, Kengo Shimanoe
Electrochemistry Communications   24 50-52   Oct 2012
We have already demonstrated that an air electrode using LaMnO 3-supported on LaNiO 3 efficiently works as a bi-functional air electrode for oxygen reduction and evolution. In order to improve the bi-functional activity, high specific surface area...
Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe
ACS Applied Materials and Interfaces   4 4231-4236   Aug 2012
A stable sol suspension of Pd-loaded SnO 2 nanocrystals, which is valid for both fundamental studies of semiconductor gas sensor and fabrications of a micro gas sensor, was fabricated by the photochemical deposition of PdCl 4 2- onto SnO 2 in an a...
Koichi Suematsu, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe, Kengo Shimanoe
Journal of the Electrochemical Society   159    Feb 2012
To verify theoretical model based on the surface depletion effect of oxide semiconductor in small crystallite, the SnO 2 particles of different crystallite size and donor density were prepared by controlling heat-treatment temperature and Fe 3+ do...
Naoki Tachibana, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe, Kengo Shimanoe
Sensor Letters   9 21-25   Dec 2011
We investigated the H2 sensing properties of a catalytic combustion-type hydrogen sensor using a BaTiO3-based positive temperature coefficient (PTC) thermistor as a transducer. In this sensor, catalytic combustion of H2 on Pt electrodes or a catal...
Min Hyun Seo, Masayoshi Yuasa, Tetsuya Kida, Jeung Soo Huh, Noboru Yamazoe, Kengo Shimanoe
Sensor Letters   9 26-30   Dec 2011
The loading of noble metals was carried out to enhance the gas sensing characteristics of TiO2 nanotube-based sensors. Using a photochemical deposition method, Au nanoparticles were successfully deposited on TiO 2 nanotubes prepared by a hydrother...
Min Hyun Seo, Masayoshi Yuasa, Tetsuya Kida, Yuich Kanmura, Jeung Soo Huh, Noboru Yamazoe, Kengo Shimanoe
Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan   119 884-889   Nov 2011
Detection of volatile organic compounds (VOCs) has attracted considerable attention for indoor air quality and human breath analysis. Here, resistive-type gas sensors with porous films made of Au-loaded TiO2 nanotubes were developed for the detect...
Min Hyun Seo, Masayoshi Yuasa, Tetsuya Kida, Jeung Soo Huh, Noboru Yamazoe, Kengo Shimanoe
Sensors and Actuators, B: Chemical   154 251-256   Jun 2011
Porous gas sensing films composed of TiO2 nanotubes were fabricated for the detection of volatile organic compounds (VOCs), such as alcohol and toluene. In order to control the microstructure of TiO2 nanotubular films, ball-milling treatments were...
Masayoshi Yuasa, Noboru Yamazoe, Kengo Shimanoe
Journal of the Electrochemical Society   158    Apr 2011
The durability of carbon-supported La-Mn-based perovskites for the oxygen reduction reaction in strong alkaline solutions was investigated. Carbon-supported perovskite-type oxide nanoparticles were prepared by using a reverse micelle method. The d...
Masayoshi Yuasa, Masatoshi Nishida, Tetsuya Kida, Noboru Yamazoe, Kengo Shimanoe
Journal of the Electrochemical Society   158    Apr 2011
Carbon supported-electrocatalysts are principally used as catalytic layers for air electrodes of metal air batteries. However, these types of air electrodes are problematic because the carbon support can be oxidized to water soluble organic compou...
Masayoshi Yuasa, Kengo Shimanoe, Yasutake Teraoka, Noboru Yamazoe
Electrochemical and Solid-State Letters   14    Mar 2011
To obtain a highly active and low-cost oxygen reduction electrode, as compared with a Pt-loaded carbon electrode, a nano-sized La-Mn-based perovskite-type oxide on a carbon support was prepared through the reverse-micelle method. An gas diffusion ...
Seo Min-Hyun, Yuasa Masayoshi, Kida Tetsuya, Huh Jeung-Soo, Yamazoe Noboru, Shimanoe Kengo
SENSOR LETTERS   9(1) 26-30   Feb 2011   [Refereed]
Hirofumi Inoue, Mike Andersson, Masayoshi Yuasa, Tetsuya Kida, Anita Lloyd Spetz, Kengo Shimanoe
Electrochemical and Solid-State Letters   14    Jan 2011
A solid-state C O2 sensor device using a metal-insulator-silicon carbide (MISiC) capacitor combined with a Li2 C O3 -BaC O3 auxiliary layer was fabricated and tested for its basic sensing properties. The MISiC-based C O2 sensor attached with the c...
Hirofumi Inoue, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe, Kengo Shimanoe
Journal of the Electrochemical Society   158    Jan 2011
In order to enhance the response speed, noble metal (Ru) loading into the W O3-NaN O2 sensing layer for the field effect transistor (FET)-based N O2 sensors was investigated. The sensing layer was prepared by heat-treating the mixture powder of Na...
Ken Watanabe, Subaru Ninomiya, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe, Hajime Haneda, Kengo Shimanoe
Journal of the American Ceramic Society   93 2012-2017   Jul 2010
In order to investigate the effect of the microstructure on the oxygen permeation in Ba0.95La0.05FeO3-δ membranes, three different methods such as solid-state reaction, nitrate and acetate decomposition (NAD), and amorphous malic acid precursor (A...
Ken Watenabe, Masayoshi Yuasa, Tetsuya Kida, Yasutake Teraoka, Noboru Yamazoe, Kengo Shimanoe
Advanced Materials   22 2367-2370   Jun 2010
(Figure Presented) High oxygen permeability was achieved using an asymmetric Ba0.95La0.05FeO3-δ membrane. In this membrane, oxygen diffuses physically through pores of a porous support and oxygen permeates electrochemically through a dense layer. ...
Masayoshi Yuasa, Akiko Koga, Tetsuya Kida, Kengo Shimanoe, Noboru Yamazoe
Journal of Applied Electrochemistry   40 675-681   Mar 2010
In this study, gas diffusion electrodes (GDEs) with two catalyst layers were fabricated and tested for their electrode performance for oxygen reduction in an alkaline solution. The LaMnO3/carbon black catalyst layers were fabricated using a revers...
Masayoshi Yuasa, Yoshiyuki Matoba, Yoshiyuki Matoba, Noboru Yamazoe, Kengo Shimanoe
Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan   118 184-187   Mar 2010
In order to reduce the electric resistance of the WO3 sensing film fabricated from the ion-exchange method, lamellar-structured and Re-doped WO3 was prepared through the acidification method. The mixed solution of Na2WO4 and Re2O7 was dropped into...
Tetsuya Kida, Daisuke Takauchi, Ken Watanabe, Masayoshi Yuasa, Kengo Shimanoe, Yasutake Teraoka, Noboru Yamazoe
Journal of the Electrochemical Society   156    Nov 2009
To explore oxygen permeable materials, oxygen permeation properties of partially A-site substituted BaFe O3-δ perovskites were investigated. Ba sites in BaFe O3-δ were substituted with cations such as Na, Rb, Ca, Y, and La by 5%. The partial subst...
Shotaro Kishi, Yuji Miyachi, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe, Noboru Yamazoe
Journal of the Electrochemical Society   156    Oct 2009
To improve the stability of Na3Zr2Si 2PO12 (NASICON)-based potentiometric CO2 sensors fitted with carbonate/Au layers (sensing electrode), mixed conducting oxides of Li0.4CoO2 and Na0.6CoO2 were examined for their applicability to solid-reference ...
Min Hyun Seo, Masayoshi Yuasa, Tetsuya Kida, Jeung Soo Huh, Noboru Yamazoe, Kengo Shimanoe
Procedia Chemistry   1 192-195   Sep 2009
We fabricated porous gas sensing films composed of TiO2 nanotubes prepared by a hydrothermal treatment for the detection of organic gases, such as alcohol and toluene. The morphology of the sensing films was controlled with a ball-milling treatmen...
Kengo Shimanoe, Aya Nishiyama, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe
Procedia Chemistry   1 212-215   Sep 2009
To fabricate more excellent NO 2 sensor with high sensor response and good linearity between the sensor response and NO 2 concentration, the microstructure of WO 3 lamellae was controlled by adding nano-particles of SnO 2. It was found that the si...
Ken Watanabe, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe, Yasutake Teraoka, Noboru Yamazoe
Chemistry Letters   38(1) 94-95   Jul 2009
To achieve a high oxygen permeation rate at medium and high temperature, an asymmetrically structured membrane, in which a thin dense layer (30μm) made of La 0.6Ca 0.4CoO 3-δ (LCC) and BaFe 0.975Zr 0.025O 3-δ (BFZ) was formed on a porous LCC suppo...
Ken Watanabe, Daisuke Takauchi, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe, Yasutake Teraoka, Noboru Yamazoe
Journal of the Electrochemical Society   156    Apr 2009
Partially Zr-substituted BaFe 1-yZr yO 3-δ membranes were developed as a Co-free oxygen permeable membrane. In order to stabilize the cubic perovskite structure, Fe sites in BaFeO 3-δ were partially substituted with Zr 4+. In the substitution rang...
Min Hyun Seo, Masayoshi Yuasa, Tetsuya Kida, Jeung Soo Huh, Kengo Shimanoe, Noboru Yamazoe
Sensors and Actuators, B: Chemical   137 513-520   Apr 2009
Preparation and morphology control of TiO2 nanostructured films for gas sensor applications were investigated. To examine the effect of the morphology of sensing films on the sensing characteristics, TiO2 with different morphologies, nanoparticles...
Tetsuya Kida, Takuya Minami, Shotaro Kishi, Masayoshi Yuasa, Kengo Shimanoe, Noboru Yamazoe
Sensors and Actuators, B: Chemical   137 147-153   Mar 2009
Mixed potential-type gas sensors with a BiCuVOx (Bi2Cu0.1V0.9O5.35) oxygen conductor, fitted with composite electrodes made of perovskite-type oxide (La0.6Sr0.4Co0.8Fe0.2O3) and BiCuVOx, were tested for their organic gas sensing properties. A plan...
Masayoshi Yuasa, Takanori Masaki, Tetsuya Kida, Kengo Shimanoe, Noboru Yamazoe
Sensors and Actuators, B: Chemical   136 99-104   Feb 2009
A reverse micelle method was investigated for preparing nano-sized PdO loaded on SnO2 nanoparticles. PdO-SnO2 nano-composite was prepared by precipitating Pd(OH)2 and Sn(OH)4 inside a reverse micelle. The microstructure and the gas sensing propert...
Tetsuya Kida, Aya Nishiyama, Masayoshi Yuasa, Kengo Shimanoe, Noboru Yamazoe
Sensors and Actuators, B: Chemical   135 568-574   Jan 2009
Tungsten trioxide (WO3) was prepared by acidification of Na2WO4 with acid solutions such as H2SO4, HCl, and HNO3 (pH 0.5 to -0.8) and tested for its NO2 sensing properties. Acidification with strong acid solutions (pH -0.5, -0.8) was found to prod...
Masami Mori, Yuji Iwamoto, Makiko Asamoto, Yoshiteru Itagaki, Hidenori Yahiro, Yoshihiko Sadaoka, Satoko Takase, Youichi Shimizu, Masayoshi Yuasa, Kengo Shimanoe, Hajime Kusaba, Yasutake Teraoka
Catalysis Today   139 125-129   Dec 2008
The perovskite-type SmFeO3 powders were prepared by the four different methods, named decomposition method of heteronuclear cyano complexes (CN), polymer precursor method (PP), reverse micelle method (RM) and reverse homogenous precipitation metho...
H. Inoue, M. Yuasa, T. Kida, K. Shimanoe, N. Yamazoe
Sensor Letters   6 912-915   Dec 2008
A FET type NO2 sensor fitted with NaNO2-RU/WO3 as a new auxiliary (sensing) layer was fabricated and tested for its NO2 sensing properties. The developed device responded to dilute NO2 of ppb concentrations (20-300 ppb) at 130 and 170 °C. The sens...
Ken Watanabe, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe, Yasutake Teraoka, Noboru Yamazoe
Chemistry of Materials   20 6965-6973   Nov 2008
To achieve high-efficiency oxygen permeation using mixed (ionic and electronic) conducting perovskite-type oxides, we examined asymmetric-structured membranes of La0.6Ca0.4CoO3 in which a thin dense membrane was deposited on a porous support. The ...
Ken Watanabe, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe, Yasutake Teraoka, Noboru Yamazoe
Solid State Ionics   179 1377-1381   Sep 2008
An asymmetric-structured membrane, in which a dense thin La0.6Ca0.4CoO3 layer of 10 μm was deposited on porous La0.6Ca0.4CoO3 support by a slurry dropping method, were tested for its oxygen permeability at 630-930 °C. In order to increase the oxyg...
Tetsuya Kida, Toru Kuroiwa, Masayoshi Yuasa, Kengo Shimanoe, Noboru Yamazoe
Sensors and Actuators, B: Chemical   134 928-933   Sep 2008
A high-speed gas-switching system, in which a low-dead volume chamber (0.6 cm3) was connected to a gas flow apparatus equipped with a high-speed gas-switching valve operative at a rate of 30 ms, was designed to investigate the real response and re...
Tetsuya Kida, Tetsuya Kida, Shotaro Kishi, Masayoshi Yuasa, Kengo Shimanoe, Kengo Shimanoe, Noboru Yamazoe, Noboru Yamazoe
Journal of the Electrochemical Society   155    Apr 2008
To improve the stability of a NASICON (Na3 Zr2 Si2 PO12; Na+ conductor)-based potentiometric CO2 sensor under humid conditions, a composite of BiCuVOx (Bi2 Cu0.1 V0.9 O5.35) and perovskite-type oxide (La0.6 Sr0.4 Co0.78 Ni0.02 Fe0.2 O3) was used a...
Tetsuya Kida, Takuya Minami, Masayoshi Yuasa, Kengo Shimanoe, Noboru Yamazoe
Electrochemistry Communications   10 311-314   Feb 2008
A potentiometric organic gas sensor-based on BiCuVOx (Bi2Cu0.1V0.9O5.35) solid electrolyte was investigated. Electromotive force (EMF) of the sensor device, in which a BiCuVOx sintered disk is fitted with composite electrodes of BiCuVOx/La0.6Sr0.4...
Shotaro Kishi, Masayoshi Yuasa, Tetsuya Kida, Vilho Eelis Lantto, Kengo Shimanoe, Noboru Yamazoe
Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan   115(1347) 706-711   Nov 2007
A laminated solid-reference electrode of BiCuVOx (Bi 2Cu0.1V0.9O5.35)/Jperovskite-oxide (La0.6Sr0.4Co0.78Ni0.02 Fe 0.2O3) was developed for a NASICON (Na3Zr 2Si2PO12; Na+ conductor)-based potentiometric CO2 sensor. The fabricated electrochemical c...
Masayoshi Yuasa, Kengo Shimanoe, Yasutake Teraoka, Noboru Yamazoe
Catalysis Today   126 313-319   Aug 2007
Two ways of reverse micelle (RM) method were investigated to prepare carbon-supported nano-sized LaMnO3 with high oxygen reduction activity. Hydrolysis precipitation in reverse micelle (HP-RM) method could give nano-sized particles of LaMnO3 easil...
Jerzy P. Lukaszewicz, Shin Imaizumi, Masayoshi Yuasa, Kengo Shimanoe, Noboru Yamazoe
Journal of Materials Science   41 6215-6220   Oct 2006
A novel method by combining NAC-FAS (NAnometer-sized Crystal Formation in Alcoholic Solutions) method and mechanical milling treatment was successfully applied for dispersing perovskite type oxide LaMnO3 finely on carbon support. Microscopic obser...
M. Yuasa, G. Sakai, K. Shimanoe, Y. Teraoka, N. Yamazoe
Journal of the Electrochemical Society   151    Nov 2004
La1-xSrxMn0.8Fe0.2O 3+δ (x = 0-0.4) and La0.8Sr0.2Mn 1-yFeyO3+δ (y = 0-0.8) supported on carbon were successfully prepared by a reverse micelle method. Aqueous solutions dissolving nitrates of constituent metals of the intended oxides and tetramet...
M. Yuasa, G. Sakai, K. Shimanoe, Y. Teraoka, N. Yamazoe
Journal of the Electrochemical Society   151    Oct 2004
Reverse micelle (RM) based synthesis of carbon-supported perovskite type oxide (LaMnO3) was investigated. By using cyclohexane as oil phase, six kinds of nonionic surfactants were tested for the formation of the revere micelle dispersions containi...

Misc

 
R. G. Pavelko, J. K. Choi, A. Urakawa, M. Yuasa, T. Kida, K. Shimanoe, N. Yamazoe
Proceedings of SPIE - The International Society for Optical Engineering   8811    Dec 2013
Modulation excitation diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) together with resistance measurements has been carried out to study water isotopic exchange on undoped SnO2 materials as a function of CO concentration. We ...
Tetsuya Kida, Hiromasa Matsufuji, Masayoshi Yuasa, Kengo Shimanoe
Advanced Materials Research   747 518-521   Oct 2013
We attempted the photo-chemical recovery of noble metals from solutions using inorganic-organic hybrid photocatalysts based on polyoxometallates (POMs) such as PMo12O40 3-, SiW12O40 4-, and γ-SiW10O36 8- coupled with a cationic surfactant, dimethy...
Kengo Shimanoe, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe
2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011   38-43   Dec 2011
Semiconductor gas sensors are device consisting of sintered metal oxides, which can indicate target gas concentration by measuring the electric resistance of device. The gas sensors have been developed widely for detection of inflammable gases, to...
Tetsuya Kida, Hiroyuki Kurachi, Masayoshi Yuasa, Kengo Shimanoe, Noboru Yamazoe
Advanced Materials Research   47-50 PART 2 1506-1509   Nov 2008
The deposition of Pd nanoparticles onto thiol-functionalized SnO 2 nanoparticles was carried out at the aqueous/organic liquid/liquid interface to prepare Pd-loaded SnO2 nanoparticles for high-sensitive sensor materials. The method is based on the...
Kouichi Suematsu, Takanori Honda, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe, Noboru Yamazoe
Advanced Materials Research   47-50 PART 2 1502-1505   Nov 2008
Recently, we have proposed some theoretical models, power laws and effect of particle shape and size, for semiconductor gas sensors. The models show that a depletion theory of semiconductor can be combined with the dynamics of adsorption and/or re...
T. Kida, S. Kishi, M. Yuasa, K. Shimanoe, N. Yamazoe
TRANSDUCERS and EUROSENSORS '07 - 4th International Conference on Solid-State Sensors, Actuators and Microsystems   975-978   Dec 2007
In order to improve the stability of a NASICON (Na3Zr 2Si2PO12; Na+ conductor)-based potentiometric CO2 sensor under humid conditions, a new solid-reference electrode of the BiCuVOx (Bi2Cu0.1V 0.9O5.35)/perovskite-type oxide (La0.6Sr 0.4Co0.02Ni0....
Proceedings of the Chemical Sensor Symposium   43 94-96   Mar 2007
Proceedings of the Chemical Sensor Symposium   43 130-132   Mar 2007
Proceedings of the Chemical Sensor Symposium   44 4-6   Sep 2007
Proceedings of the Chemical Sensor Symposium   45 22-24   Mar 2008
Proceedings of the Chemical Sensor Symposium   45 31-33   Mar 2008
Proceedings of the Chemical Sensor Symposium   46 46-48   Sep 2008
Proceedings of the Chemical Sensor Symposium   46 52-54   Sep 2008
Proceedings of the Chemical Sensor Symposium   47 34-36   Mar 2009
Proceedings of the Chemical Sensor Symposium   47 40-42   Mar 2009
Proceedings of the Chemical Sensor Symposium   48 85-87   Sep 2009
Proceedings of the Chemical Sensor Symposium   49 46-48   Mar 2010
Proceedings of the Chemical Sensor Symposium   49 58-60   Mar 2010
Proceedings of the Chemical Sensor Symposium   50 76-78   Sep 2010
Proceedings of the Chemical Sensor Symposium   50 94-96   Sep 2010
Proceedings of the Chemical Sensor Symposium   51 103-105   Mar 2011
Proceedings of the Chemical Sensor Symposium   51 148-150   Mar 2011
Proceedings of the Chemical Sensor Symposium   52 13-15   Sep 2011
Proceedings of the Chemical Sensor Symposium   52 16-18   Sep 2011

Research Grants & Projects

 
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(若手研究(B))
Project Year: 2012 - 2013    Investigator(s): Masayoshi YUASA
In order to improve the electrode potential for the oxygen reduction reaction of air electrode, the effect of the composition of La-Mn based perovskite-type oxides on the oxygen reduction activity and the effect of the doubly loading of LaMnO3 and...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(若手研究(B))
Project Year: 2008 - 2009    Investigator(s): Masayoshi YUASA
Metal-air batteries have higher theoretical energy densities compared with other chemical batteries because they utilize oxygen in the air as one of their electroactive materials. Therefore, metal-air batteries have been paid attention as a next g...