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Development of nickel based cermet anode materials in solid oxide fuel cells–Now and future

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Materials Reports(Energy) 2021年第1期1卷 101-126页

作者： Yu Liu Zongping Shao toshiyuki Mori San Ping Jiang WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerthWA6102Australia Centre for Green Research in Energy and Environmental Materials National Institute of Materials ScienceTsukubaIbaraki305-0044Japan Department of Physics and Astronomy Fuels and Energy Technology InstituteCurtin UniversityGPO Box U1987PerthWA6845Australia

High temperature solid oxide fuel cell(SOFC)is the most efficient and clean energy conversion technology to electrochemically convert the chemical energy of fuels such as hydrogen,natural gas and hydrocarbons to electricity,and also the most viable alternative to the traditional thermal power ***,the power output of a SOFC critically depends on the characteristics and performance of its key components:anode,electrolyte and *** to the highly reducing environment and strict requirements in electrical conductivity and catalytic activity,there are limited choices in the anode materials of SOFCs,particularly for operation in the intermediate temperature range of 500–800*** them,Ni-based cermets are the most common and popular anode materials of *** objective of this paper is to review the development of Ni-based anode materials in SOFC from the viewpoints of materials microstructure,performance and industrial scalability associated with the fabrication and optimization *** latest advancement in nano-structure architecture,contaminant tolerance and interface optimization of Ni-based cermet anodes is *** at the end of this paper,we propose and appeal for the collaborative work of scientists from different disciplines that enable the inter-fusion research of fabrication,microanalysis and modelling,aiming at the challenges in the development of Ni-based cermet anodes for commercially viable intermediate temperature SOFC or IT-SOFC technologies.

关键词： Ni-based cermet anode Intermediate temperature solid oxide fuel cell Activity Interface optimization Carbon deposition Sulfur poisoning Multidisciplinary collaborative work

Present status and future prospect of design of Pt-cerium oxide electrodes for fuel cell applications

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Progress in Natural Science:Materials International 2012年第6期22卷 561-571页

作者： toshiyuki Mori Ding Rong Ou Jin Zou John Drennan Graduate School of Chemical Sciences and Engineering.Hokkaido University Kita13Nishi8Kita-ku.Sapporo.Hokkaido 060-8628.Japan Hetero interface design group.Global Research Center for Environment and Energy based on Nanomaterials Science(GREEN).National Institute for Materials Science.1-1 Namiki Tsukuba.Ibaraki 305-0044.Japan Centre for Microscopy and Microanalysis The University of QueenslandSt.LuciaBrisbaneQld 4072Australia Laboratory of Fuel Cells Dalian Institute of Chemical Physics Chinese Academy of Sciences457 Zhongshan RoadDalian

In the research field of proton exchange membrane fuel cells,the design of electrocatalytic activities on Pt-oxide promoter in the anode side has attracted attention for improvement of CO tolerance of Pt in anode side and a lowering of large over-potential loss of the oxygen reduction reaction on the cathode in the fuel *** the Pt-oxide promoter series,Pt-CeOx/C is one of the unique *** is because the unique behavior of CeOxsuch as electrochemical redox reaction between Ce3+and Ce4+in the anodic and cathodic reactions of fuel cell is *** present short review gives an overview of the recent works for improvement of the CO tolerance of Pt in the Pt-CeOx/C anodes and enhancement of the oxygen reduction reaction activity on Pt in the Pt-CeOx/C cathodes for fuel cell *** show the design paradigm for fabrication of high quality Pt-CeOx/C electrodes,the authors re-introduced parts of our research results to highlight the important role of interface structure of Pt-CeOxbased on the ultimate analysis results. The usefulness of the combined approach of microanalysis and the processing route design is presented.

关键词： Pt-CeO_x electrode CO tolerance of Pt Oxygen reduction reaction Interface of Pt and cerium oxide Microanalysis

SYNTHESES AND CHARACTERIZATION OF A NEW TYPE OF LIQUID CRYSTALLINE POLYESTERS

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Chinese Journal of Polymer Science 1994年第3期12卷 221-227页

作者：白如科吴承佩邹应芳孙武潘才元 toshiyuki Uryu Department of Materials Science and Engineering University of Science and Technology of China Hefei Anhui 230026 Institute of Industrial Science Faculty of Engineering University of Tokyo Roppongi Minato-ku Tokyo 106 Japan

A new type of liquid crystalline polyesters with resorcin as one part of the mesogenic unitconnected together by polymethylene, or phenylene group, and lateral groups consisting of arigid azobenzene as another part of the mesogenic unit were synthesized by interfacialpolymerization of diacyl chlorides in 1, 2-dichloroethane and 2, 4-dihydroxy-4'-nitroazobenzen inaqueous alkaline solution. The polyester structures were confirmed by proton NMR and IRspectra. Their phase transition behavior and texture were studied by polarizing microscopy andDSC.

关键词： New liquid crystalline polyesters Synthesis Interfacial polymerization Phase transition temperature Texture of liquid crystalline polymers

Regulation of the growth of sprouting roots of black locust seedlings using root barrier panels

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Journal of Forestry Research 2023年第3期34卷 655-664页

作者： Satoshi Kitaoka Shiro Matsunami Yannan Wang Saki Fujita Kobayashi Makoto toshiyuki Hirata Takayoshi Koike Graduate School of Agriculture Hokkaido UniversitySapporo 060-8589Japan The Robust Greenhouse Project of Hokkaido University Sapporo 060-8589Japan Present Address:Oyo Cooperation Ltd Sumitomo BuildingTokyo 101-8486Japan Jiangxi Academy of Forestry Nanchang 330029People’s Republic of China Forestry and Forest Products Research Institute Tsukuba 305-8687Japan Field Science Center for Northern Biosphere Hokkaido UniversitySapporo 060-0809Japan Research Faculty of Agriculture Hokkaido UniversitySapporo 060-8589Japan

How can we regulate an invasive alien species of high commercial value?Black locust(Robinia pseudoacacia L.)has a unique capacity for seed dispersal and high *** surveys indicate that black locust increases its growing area with sprouting roots and the elongation of horizontal roots at a soil depth of 10 ***,a method to regulate the development of horizontal roots could be eff ective in slowing the invasiveness of black *** this study,root barrier panels were tested to inhibit the growth of horizontal *** it is labor intensive to observe the growth of roots in the fi eld,it was investigated in a nursery *** decrease in secondary fl ush,an increase in yellowed leafl ets,and the height in the seedlings were *** root barrier panels to a depth of 30 cm eff ectively inhibit the growth of horizontal roots of young black locust.

关键词： Black locust Horizontal roots Nutrients Root barrier panel Sprouting roots

Social Factors Affecting Wetlands Utilization for Agriculture in Nigeria: A case study of sawah rice production

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Rice science 2008年第2期15卷 150-152页

作者： OLADELE Oladimeji Idowu toshiyuki WAKATSUKI Department of Agricultural Extension and Rural Development University of Ibadan Faculty of Agriculture Kinki University

Wetlands have immense poverty-fighting potentials and in Nigeria, more and more people are dependent on wetlands for their livelihoods. To examine the social factors affecting the current status of the wetlands utilization for agriculture in Nigeda, a simple random sampling technique was used to select 200 farmers cultivating wetlands and a structured questionnaire was applied to elicit the information on the social factors. Data collected were described using frequency and percentage and a multiple regression analysis was used to identify significant variables that are determinants of wetland utilization. The results of the analysis showed that significant variables included crop preferences, farming system, culture, taste, land tenure, knowledge of wetland cultivation, perceived suitability, farmers＇ tribe, location of wetland, and farmers＇ age. it was concluded with suggestions for the right combination of policies, public awareness, and appropriate farming methods in order to improve wetland utilization in Nigeria.

关键词： social factors current status wetlands utilization agriculture sawah rice production

Ion Beam Surface Modification of Y-TZP and Effects of Subsequent Annealing

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材料热处理学报 2004年第5B期25卷 1032-1036页

作者： Y.Motohashi T.Shibata S.Harjo T.Sakuma M.Ishihara S.Baba K.sawa Research Center for Superplasticity Ibaraki University Nakanarusawa 4-12-1 Hitachi Ibaraki 316-8511 Japan Oarai Research Establishment JAERI Oarai Higashiibaraki-gun Ibaraki 311-1394 Japan

Tetragonal zirconia polycrystals containing 3 mol% yttria (3Y-TZP), which show Superplasticity at high temperatures, were irradiated using 130 MeV Zr+" ions in the TANDEM accelerator facility at Tokai Research Establishment, JAERI. The irradiation induced atomic displacement damage was analyzed by TRIM code. Changes in the mechanical properties and fracture behavior caused by the ion irradiation and the effects of subsequent annealing were studied. The distribution of micro-indentation depth as a function of the indentation position from the irradiated surface to the specimen interior was also examined. The occurrence of compressive residual stresses and increases in hardness and fracture toughness were found in the as-irradiated surface region of the specimen. The subsequent annealing revealed that these quantities were decreased gradually with raising the annealing temperature. Probable causes of the generation of the residual stress and the changes in mechanical properties and fracture mode due to the irradiation are discussed.

关键词： ion beam surface modification annealing 3Y-TZP residual stress mechanical properties micro-indentation Superplasticity

Hybrid Polyaniline Systems under Chiral and Redox Control

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复旦学报（自然科学版） 2005年第5期44卷 707-708页

作者： Toshikazu Hirao toshiyuki Moriuchi Kenji Morita Department of Applied Chemistry Graduate School of Engineering Osaka University Yamada-oka Suita Osaka 565-0871 JapanDepartment of Applied Chemistry Graduate School of Engineering Osaka University Yamada-oka Suita Osaka 565-0871 JapanDepartment of Applied Chemistry Graduate School of Engineering Osaka University Yamada-oka Suita Osaka 565-0871 Japan

Polyanilines are one of the promising electrically conducting π-conjugated polymers with chemical stability. In recent year, there has been increased interest in chiral induction of polyanilines because of their potential use in diverse areas. Chiral polyaniline has been reported to be formed only by the chiral acid dopant[1]. In our previous papers, complexation of polyanilines or their oligomers with transition metals modulates the redox properties of the quinonediimine unit, which is related to the catalytic function in the oxidation reaction[2].The controlled complexation with palladium(Ⅱ) compounds has been achieved to afford the cross-linked network conjugated complexes, in which the quinonediimine moieties serve as bridging coordination sites[3].Another hybrid system consisting of π-conjugated polymer and transition metal is also described.

关键词：氨苯聚乙烯混合物氧化还原控制共轭聚合体手性合成

Caution to Apply Magnetic Barkhausen Noise Method to Nondestructive Evaluation of Plastic Deformation in Some Ferromagnetic Materials

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Chinese Journal of Mechanical Engineering 2019年第6期32卷 85-91页

作者： Manru He Takanori Matsumoto Tetsuya Uchimoto toshiyuki Takagi Hongen Chen Shejuan Xie Zhenmao Chen Shannxi Engineering Research Center for NDT and Structural Integrity Evaluation State Key Laboratory for Strength and Vibration of Mechanical StructuresSchool of AerospaceXi’an Jiaotong UniversityXi’an 710049China Institute of Fluid Science Tohoku UniversitySendai 980‑8577Japan

Magnetic Barkhausen Noise(MBN) method is known as an effective nondestructive evaluation(NDE) method for evaluation of residual stress in ferromagnetic materials. Some studies on the feasibility of the MBN method for NDE of residual strains were also conducted and found applicable. However, these studies are mainly focused on the state of residual strains which were introduced through a one-cycle-loading process. In practice, however, structures may suffer from an unpredictable and complicated loading history, i.e., the final state of plastic strain may be induced by several times of large loads. Whether the loading history has influences on MBN signals or not is of great importance for the practical application of the MBN method. In this paper, several ferromagnetic specimens with the same final state of residual strain but of different loading history were fabricated and inspected by using a MBN testing system. The experimental results reveal that the loading history has a significant influence on the detected MBN signals especially for a residual strain in range less than 1%, which doubts the feasibility to apply the MBN method simply in the practical environment. In addition, micro-observations on the magnetic domain structures of the plastic damaged specimens were also carried out to clarify the influence mechanism of loading history on the MBN signals.

关键词： Plastic damage Deformation history MBN method Ferromagnetic materials

An analysis on older driver＇s driving behavior by GPS tracking data： Road selection, left/right turn, and driving speed

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Journal of Traffic and Transportation Engineering(English Edition) 2018年第1期5卷 56-65页

作者： Yanning Zhao toshiyuki Yamamoto Takayuki Morikawa Department of Civil Engineering Nagoya University Nagoya 464-8603 Japan Institute of Materials and Systems for Sustainability Nagoya University Nagoya 464-8603Japan Institute of Innovation for Future Society Nagoya University Nagoya 464-8603Japan

With the high older-related accident ratio and increasing population aging problem, understanding older drivers＇ driving behaviors has become more and more important for building and improving transportation system. This paper examines older driver＇s driving behavior which includes road selection, left/right turn and driving speed. A two-month experiment of 108 participants was carried out in Aichi Prefecture, Japan. Since apparently contradictory statements were often drawn in survey-based or simulators-based studies, this study collected not only drivers＇ basic information but also GPS data. Analysis of road selection demonstrates that older drivers are reluctant to drive on expressway not only in short trips but also in long trips. The present study did not find significant difference be- tween older drivers and others while turning at the intersections. To investigate the impact factors on driving speed, a random-effects regression model is constructed with explan- atory variables including age, gender, road types and the interaction terms between age and road types. Compared with other variables, it fails to find that age （60 years old or over） has significant impact on driving speed. Moreover, the results reflect that older drivers drive even faster than others at particular road types： national road and ordinary municipal road. The results in this study are expected to help improve transportation planning and develop driving assistance systems for older drivers.

关键词： Older driver Driving behavior Road selection Left/right turn Driving speed