Vol.4 No.2 2011

Research paper : Thermoelectric hydrogen gas sensor (W. Shin et al.)−106−Synthesiology - English edition Vol.4 No.2 (2011) international standard in 2010. We are carrying out several application researches of the thermoelectric hydrogen sensors for various practical uses, expecting future spread of the related technologies and international cooperation including hydrogen energy use.ISO 5725-1:1994(JIS Z 8402-1) Accuracy (trueness and precision) of measurement methods and results - Part 1: General principles and definitions.JIS M 7626-1994, stationary type combustible gas alarm (1994).W. Shin, K. Imai, N. Izu and N. Murayama: Thermoelectric thick-Film hydrogen gas sensor operating at room temperature, Jpn. J. Appl. Phys. 2, 40 L1232-1234(2001). M. Nishibori, W. Shin, L. Houlet, N. Izu, T. Itoh, N. Murayama and I. Matsubara: New Structural Design of Micro-thermoelectric Sensor for Wide range Hydrogen detection, J. Ceram. Soc. Japan, 114, 853-856 (2006).M. Nishibori, W. Shin, L. Houlet, K. Tajima, N. Izu, T. Itoh and I. Matsubara: Long-term stability of Pt/alumina catalyst combustors for micro-gas sensor application, J. European Ceramic Society, 28,2183–2190 (2008).M. Nishibori, W. Shin, K. Tajima, L. Houlet, N. Izu, T. Itoh and I. Matsubara: Robust hydrogen detection system with a thermoelectric hydrogen sensor for hydrogen station application, Int. J. hydrogen energy, 34, 2834-2841 (2009).M. Matsumiya, W. Shin, N. Izu and N. Murayama: Nano structured thin-film Pt catalyst for thermoelectric hydrogen gas sensor, Sens. Actuators B, 93, 309-315 (2003).Y. Choi, K. Tajima, N. Sawaguchi, W. Shin, N. Izu, I. Matsubara and N. Murayama: Planar catalytic combustor application for gas sensing, Applied Catalyst A, 287, 19-24 (2005).M. Nishibori, W. Shin, N. Izu, T. Itoh, and I. Matsubara: Sensing performance of thermoelectric hydrogen sensor for breath hydrogen analysis, Sen. Actuators B, 137, 524-528 (2009). [1][2][3][4][5][6][7][8][9]ReferencesAuthorsWoosuck ShinReceived his BS and MS degrees in material science and engineering from KAIST in Korea in 1992 and 1994, respectively. Since 1998, after receiving his doctorate in applied chemistry from the Nagoya University, he has been employed at AIST. He is the group leader of the Electroceramics Processing Research Group, Advanced Manufacturing Research Institute, AIST. His research activity includes the thin film materials for gas sensor technology. Maiko NishiboriStudied material science of the Earth’s deep interior. After finishing her master’s course in 1998 at Ehime University, she worked at Japan Synchrotron Radiation Research Institute (SPring-8/JASRI) and received her doctorate in 2004 in Earth science from Ehime University. She has been working at AIST in Japan since 2004. Her research fields are catalysts for gas sensors, in-situ analysis of materials using radiation source. In this paper she described the sensor fabrication process and applications.Ichiro MatsubaraReceived his BS and MS degrees in polymer chemistry from Osaka University in 1985 and 1987, respectively, and his doctorate of science in inorganic and physical chemistry from Osaka University in 1994. He is the director of Research Planning Office for Nanotechnology, Materials and Manufacturing, AIST, and the convener of the ISO/TC197/WG13 (hydrogen detection apparatus) and TC146/WG16 (Test method of VOC detector). His research interests include functional oxide materials, organic-inorganic hybrid materials, and gas sensors. In this paper he discussed the part of international standard working group for hydrogen detectors. Discussions with Reviewers1 Investigating social demandsQuestion (Norimitsu Murayama, Advanced Manufacturing Research Institute, AIST)This report points out the importance of catching the clear social demands in the beginning of the research. What is your opinion on the method of grasping the social demands?Answer (Woosuck Shin) We first collected information from the domestic and oversea R&D reports and technology road maps, our team discussed the future social demands using the obtained information, and we finally made an analytical evaluation of the social demands we found.2 Selection of elemental technologies.Question (Hisao Ichijo, Tsukuba Center, Inc. ) The assembling and integration of the elemental technologies are clearly written in this paper. How do you make a choice?Answer (Woosuck Shin) Though it is simple and clear to choose each elemental technology from the boundary condition of the social demands, to select in detail and the way of integration is rather complicated. By fabricating and testing the sensors, we carried out the integration.3 Originality of the researchQuestion (Norimitsu Murayama) The originality of this research is the combination of catalytic combustion and thermoelectric conversion. How did you come about this idea?


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