


Kengo Shimanoe | Last modified date:2021.04.14 |

Professor /
Functional Materials Science
Department of Advanced Materials Science and Engineering
Faculty of Engineering Sciences
Department of Advanced Materials Science and Engineering
Faculty of Engineering Sciences
Graduate School
Undergraduate School
Other Organization
Administration Post
Director of the Center of Advanced Instrumental Analysis
Homepage
https://kyushu-u.pure.elsevier.com/en/persons/kengo-shimanoe
Reseacher Profiling Tool Kyushu University Pure
http://www.mm.kyushu-u.ac.jp/lab_03/en/index.html
Our research interests are material sciences focusing on the development of functional materials, analysis of functional properties, and design and application of functional devices. Our research activities are classified into two the following categories.
(1) Development and basic understanding of chemical sensors. Major effort is directed to gas sensors using semiconducting or ion-conducting oxides.
*Semiconductor type gas sensor Wet preparation of SnO2 and WO3 for microstructure control of gas sensors. Control of micro porous structure for thin film semiconductor gas sensors. Analysis of diffusion-reaction for semiconductor gas sensors Elucidation of basic characteristics of semiconductor gas sensors. Microprobe (STM) analysis of surface properties of oxide semiconductors Development of high sensitive gas sensors for medical use.
*Solid electrolyte type gas sensor Investigation of solid electrolyte CO2 sensor. Elaboration of compact type sensor operative at low temperature. New capacitive type gas sensor combining MIS structure and solid electrolyte. Evolution of gas sensors combining FET and solid electrolyte for NO2 detection. Design of compact NO2 sensing system using FET-combined type gas sensor. Exploration of new solid electrolytes for gas sensors.
(2) Development and application of novel functional inorganic materials (mostly mixed oxides or their composites) are under investigation for oxygen electrode catalysis, new type oxygen-separating membranes, ceramic coatings, by wet-process, and thin film using dielectric materials.
Design of gas diffusion-type oxygen reduction electrode. Exploration of reverse micelle method for preparation of efficient oxygen cathode. Development of oxygen electrode for metal-air battery. Development of oxygen permeable membrane with thin layer-on-porous support structure. Exploration of new materials for oxygen permeable membranes. Exploration of wet-coating of ceramics on metals. Characterization of ceramic films wet-coated on metals. Wet preparation of dielectric thin films for memory device. Exploration of high temperature PTC thermister. .
Academic Degree
Dr. of Engineering
Country of degree conferring institution (Overseas)
No
Field of Specialization
Functional materials
Total Priod of education and research career in the foreign country
00years03months
Outline Activities
Our research interests are material sciences focusing on the development of functional materials, analysis of functional properties, and design and application of functional devices. Our research activities are classified into two the following categories.
(1) Development and basic understanding of chemical sensors. Major effort is directed to gas sensors using semiconducting or ion-conducting oxides.
*Semiconductor type gas sensor Wet preparation of SnO2 and WO3 for microstructure control of gas sensors. Control of micro porous structure for thin film semiconductor gas sensors. Analysis of diffusion-reaction for semiconductor gas sensors Elucidation of basic characteristics of semiconductor gas sensors. Microprobe (STM) analysis of surface properties of oxide semiconductors Development of high sensitive gas sensors for medical use.
*Solid electrolyte type gas sensor Investigation of solid electrolyte CO2 sensor. Elaboration of compact type sensor operative at low temperature. New capacitive type gas sensor combining MIS structure and solid electrolyte. Evolution of gas sensors combining FET and solid electrolyte for NO2 detection. Design of compact NO2 sensing system using FET-combined type gas sensor. Exploration of new solid electrolytes for gas sensors.
(2) Development and application of novel functional inorganic materials (mostly mixed oxides or their composites) are under investigation for oxygen electrode catalysis, new type oxygen-separating membranes, ceramic coatings, by wet-process, and thin film using dielectric materials.
Design of gas diffusion-type oxygen reduction electrode. Exploration of reverse micelle method for preparation of efficient oxygen cathode. Development of oxygen electrode for metal-air battery. Development of oxygen permeable membrane with thin layer-on-porous support structure. Exploration of new materials for oxygen permeable membranes. Exploration of wet-coating of ceramics on metals. Characterization of ceramic films wet-coated on metals. Wet preparation of dielectric thin films for memory device. Exploration of high temperature PTC thermister.
(1) Development and basic understanding of chemical sensors. Major effort is directed to gas sensors using semiconducting or ion-conducting oxides.
*Semiconductor type gas sensor Wet preparation of SnO2 and WO3 for microstructure control of gas sensors. Control of micro porous structure for thin film semiconductor gas sensors. Analysis of diffusion-reaction for semiconductor gas sensors Elucidation of basic characteristics of semiconductor gas sensors. Microprobe (STM) analysis of surface properties of oxide semiconductors Development of high sensitive gas sensors for medical use.
*Solid electrolyte type gas sensor Investigation of solid electrolyte CO2 sensor. Elaboration of compact type sensor operative at low temperature. New capacitive type gas sensor combining MIS structure and solid electrolyte. Evolution of gas sensors combining FET and solid electrolyte for NO2 detection. Design of compact NO2 sensing system using FET-combined type gas sensor. Exploration of new solid electrolytes for gas sensors.
(2) Development and application of novel functional inorganic materials (mostly mixed oxides or their composites) are under investigation for oxygen electrode catalysis, new type oxygen-separating membranes, ceramic coatings, by wet-process, and thin film using dielectric materials.
Design of gas diffusion-type oxygen reduction electrode. Exploration of reverse micelle method for preparation of efficient oxygen cathode. Development of oxygen electrode for metal-air battery. Development of oxygen permeable membrane with thin layer-on-porous support structure. Exploration of new materials for oxygen permeable membranes. Exploration of wet-coating of ceramics on metals. Characterization of ceramic films wet-coated on metals. Wet preparation of dielectric thin films for memory device. Exploration of high temperature PTC thermister.
Research
Research Interests
- Design of high performance gas sensors
keyword : gassensors, design, high sensitivity, high selectivity
1995.08In order to realize high performances of gas sensors, i.e. high sensitivity, high selectivity, long stability and so on, new designs for material are researched.. - Development of high performance oxygen reduction electrode for Lithium-air battery
keyword : oxygen reduction electrode, brin electrolysis, metal-air battery, perovskite-type oxide, nano particles
2009.04Gas diffusion-type oxygen or air electrodes have high potentiality in energy-related new technologies, such as brine electrolysis, fuel cells, and metal-air batteries. Perovskite-type oxide is one of the catalysts for gas diffusion-type oxygen electrode. We are trying to prepare nano-sized particles of perovskite-type oxide by using wet process and to design new electrode using nano-particles.. - Preparation of nano-sized SnO2 particles by using hydrothermal treatment for highly sensitive gas sensors
keyword : gas sensors, hydrothermal treatment, high sensitivity, SnO2, nano-particles
1995.08Stable colloidal suspensions of tin oxide were synthesized by subjecting conventionally prepared tin oxide gels to hydrothermal treatment in an autoclave. This sensor film using the tin dioxide exhibited an outstanding by high sensitivity to 800 ppm H2, compared with conventional tin oxide elements of a sintered block type.. - Design of ultrasensitive semiconductor gas sensors by high order structure control
keyword : high order structure control, ultrasensitive sensor, semiconductor, gas sensors, receptor
1999.04It is of interest to consider how to design higher order structure favorable for high sensitivity. For thin film devices, we can conceive two ways for it. Increasing grain size would give rise to higher sensitivity through increasing utility factor. Even when grain size is kept the same, higher sensitivity would be obtained if the grains are brought into clusters of a certain size in the film. The importance of higher order structure control mentioned above indicates the importance of the methods of preparation and processing of the sensing materials as well. The wet preparation methods including colloidal processing are worthy of being exploited thoroughly for this purpose. It is challenging to load each colloidal particle of SnO2 with foreign metal like Pd for surface modification. Doping each particle with other oxides for valence control is also worth challenging.. - Development of key technologies for micro gas sensors
keyword : micro fabrication, gas sensors, ubiqhitous sensor, IT
2004.04Recent progress of information technology (IT) has shown the necessity of constructing ubiquitous sensor networks associated with wireless communication facilities. Wearable sensors are also in the waiting list. Gas sensor people are requested to challenge these formidable tasks. In order to overcome these difficulties, we are developing micro gas sensor based on material sciences. For ubiquitous gas sensor, especially, sensor materials suitable for micro device are required while keeping sensitivity as well as selectivity.. - Design of solid electrolyte gas sensors for detection of enviroment related gases
keyword : oxidic gas, enviromental protection, gas sensors, solid electrolyte, auxiliary phase
1995.08Sensory detection of oxygenic gases such as CO,, NO, (NO and NO,), and SO, (SO, and SO,) has become increasingly important for protecting global as well as living environments. A new group of solid electrolyte-based electrochemical devices attached with a layer of auxiliary phase are emerging as attractive sensors for the detection of oxygenic gases such as CO2, NOX and SOX. In order to realize excellent sensing performances in oxygenic gases, optimization of the auxiliary phases and the reference electrode is important.. - Analysis of Electronic structure on surface of SnO2 (110) by STM
keyword : STM, SnO2, electronic structure, oxygen adsorption, gas sensors
2001.04~2007.03Surface structure of SnO2 (110) treated thermally under oxidative condition was investigated by STM. After thermal treatment under oxidative condition, the [001]-oriented wide rows and dark spots beside the [001]-oriented fine rows were observed. Compared with the surface reduced by hydrogen, it is attributed the observed wide rows and dark spots to O2− (molecularity adsorption) and O− (adsorption with negative charge), respectively.. - New type gas sensor combined semiconductor transducer and solid electrolyte
keyword : transistor, diode, gas sensors, solid electrolyte, transducers
1998.04New gas sensor using Field effect transistor or MOS diode as a transducer are investigated for detection of NO2 and CO2. This kind of sensor has two apparent advantages over the usual solid electrolyte device, i.e. high input impedance and elimination of a counter electrode. This nature may be particularly important for a potentiometric gas sensor using an auxiliary phase. Especially gas sensor combined FET and solid electrolyte has long stability as well as sensing properties.. - Study of gas sensors using new solid electrolyte
keyword : solid electrolyte, gas sensors, Bismuth oxide, perovskite-type oxide
2001.04The complex metal oxides, BiCuVOx, as a new solid electrolyte are investigated for electrochemical characterization based on oxygen concentration battery. The use of a perovskite-type oxide instead of Pt as a electrode was found to enable the cell to work at 400 ◦C and above. In addition, this sensor can detect organic gases, alcohol and aldehyde, rather than other inflammable gases.. - Development of gas sensors for medical use
keyword : medical use, ethylene oxide, N2O, gas sensors, system
1998.04Recently new gas sensors for medical use required. To detect gases (ethylene oxide, N2O and so on) used in hospital, we are exploring the possibility of developing gas sensors.. - Development of high performance oxygen reduction electrode for brine electrolysis and metal-air battery
keyword : oxygen reduction electrode, brin electrolysis, metal-air battery, perovskite-type oxide, nano particles
1995.08Gas diffusion-type oxygen or air electrodes have high potentiality in energy-related new technologies, such as brine electrolysis, fuel cells, and metal-air batteries. Perovskite-type oxide is one of the catalysts for gas diffusion-type oxygen electrode. We are trying to prepare nano-sized particles of perovskite-type oxide by using wet process and to design new electrode using nano-particles.. - Design of high performance oxygen permeable menbrane
keyword : oxygen separation, oxygen enrichment, perovskite-type oxide, mix conductor, oxygen defect
1999.10Oxygen-enriched air is receiving attention in terms of energy savings and exhaust gas reduction. Therefore, new oxygen-enrichment technologies are needed. According to our research, perovskite-type oxides, which exhibit a mixed conductivity, can be used as oxygen separation membranes to readily separate oxygen using only the concentration gradient, making electrodes and external circuits unnecessary. We are studying novel materials and designing optimal separation membranes.. - Ceramic coating on metals by using wet process
keyword : wet process, ceramics, coating, corrosion protection, high temperature
2001.04~2006.03Ceramic coating on metals have been developed for various industrial applications to protect the metals from corrosion, erosion or abrasion, or to endow the metal works with a decorative color. The object of thermal barrier coating is to provide thermal insulation to metal components. We tried to develop ceramic coating technologies based on wet processes.. - Study of PZT dielectric thin film for high density memory
keyword : PZT, wet process, memory, low temperature, thin film, high density
1996.04~2005.03For realizing a PZT memory device in practice, several technical problems such as crystallized temperature, flatness and uniformity of PZT grains, film thickness and so on, must be solved. We tried to investigate low-temperature wet preparation of dielectric thin films with flatness and uniformity for PZT high-density memories..
- The Japanese and Korean teams have tackled the problem in the fabrication of a next-generation micro-sensor device. The teams tried to develop a base technology for fabricating a micro-sized sensing layer from stable suspensions of metal/oxide hetero-structured nanoparticles such as Pd/SnO2 and Au/TiO2 prepared by wet chemical routes. Then, the teams fabricated gas sensing layers on substrates equipped with a micro-heater and micro-electrodes fabricated by a MEMS process, and examined the basic properties of micro-gas sensors in terms of sensitivity, selectivity, and stability.
Papers
Presentations
Educational


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