A5082032722- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Catalysis and Hydrodesulfurization Studies
- Electrocatalysts for Energy Conversion
- Industrial Gas Emission Control
- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Catalysts for Methane Reforming
- Nanoporous metals and alloys
- Zeolite Catalysis and Synthesis
- Copper-based nanomaterials and applications
- Japanese History and Culture
- Advancements in Solid Oxide Fuel Cells
- nanoparticles nucleation surface interactions
- Innovative Microfluidic and Catalytic Techniques Innovation
- Phytochemicals and Antioxidant Activities
- Chemical Synthesis and Analysis
- Electronic and Structural Properties of Oxides
- Hydrogen Storage and Materials
- Neutropenia and Cancer Infections
- Chemical Synthesis and Characterization
- Fungal Biology and Applications
- Hybrid Renewable Energy Systems
- Radioactive element chemistry and processing
- Carbon dioxide utilization in catalysis
Ritsumeikan University
2017
National Institute of Advanced Industrial Science and Technology
2011-2016
Kyoto Institute of Technology
1992-2016
Japan Science and Technology Agency
2009-2013
Public Works Research Institute
1997
University of Yamanashi
1993
Kyoto City University of Arts
1972-1980
Although the importance of a Au/oxide perimeter interface has been recognized in field gold catalysis, experimental evidence on reaction occurring at is still limited. In this research, we applied situ electrical conductance measurement (in ECM) to measure CO oxidation with O2 over Au/TiO2 catalyst powder and found that oxygen vacancies are generated during oxidation. The present result supports model which molecules activated such vacancies.
The solution treatments at relatively higher temperatures promoted the spherodization of eutectic silicon and consequent improvement 0.2% proof stress tensile strength. elongation absorbed energies fell with treatment time. largest strength were obtained in aging time range between 720 1080ks when temperature was 418K. mechanical properties AC4CH proved to be attributable coalescence for shorter
The cooling rate in a range of 3.3 to 12.1K/s was measured 3 15mm thick castings. tensile properties are improved with higher rate. marked effect on the dendrite structure is clearly observed, and linear relation between arm spacing found. increased refines size eutectic silicon particles but it dose not influence spheroidization these particles. concentration magnesium matrix increases especially state solution treatment. improvement attained by increasing precipitates due refined
The mechanism of the catalytic oxidation CO with O2 on an Mo catalyst supported silica has been studied by a tracer technique using 18O2. was prepared ready reaction between Mo(η3-C3H5)4 and OH groups silica. Extended X-ray absorption fine structure (EXAFS) spectroscopy showed that species attached to are dispersed atomically have dioxostructure. At steady state during CO/O2= 2/1, 32% were estimated be present as Mo6+ 68% Mo4+. accompanied oxygen isotope exchange molecules. oxostructure...
Age hardening process of the AC4CH casting alloy solution treated at 843K was investigated mainly in view aging temperatures. About 5 to 10% improvement tensile properties were obtained for treatment 418K longer time as compared with those alloys heat conventional conditions. The percent elongation fracture and absorbed energy, however, not effectively improved. Reasonable correspondence between 0.2% proof stress specific resistance ratio obtained. higher specimens aged lower temperatures,...
The catalytic oxidation of carbon monoxide on zirconium dioxide was kinetically examined in order to compare with the results titanium dioxide. experiment carried out under gas pressures 10−2−100 mmHg at 400–550°C. reaction rate proportional PCO and did not depend upon PO2, there no retarding effect by constant this almost agreed that reduction monoxide. mechanism could be explained same manner as activity for rutile. activation energy about 12.5 kcal/mol, value intermediate between those...
Oxygen isotope exchange between C 18O2 and MoO3 has been examined in connection with the catalytic oxidation of 16O on MoO3. Oxide ions at mobile immobile sites MoO3, which oxidize CO oxidation, were found to work also as active oxygen Mo 16O3. The observed time dependences yields 18O2, 18O 16O2 agreed satisfactorily those calculated from site model. In calculation, number was estimated be 1.8% total surface lattice oxide ions. rate 13% rate.
Abstract The mechanisms of the catalytic oxidations carbon monoxide and hydrogen on hafnium dioxide are similar to those titanium (anatase rutile) zirconium dioxide, activation energies these reactions have been correlated with oxygen bond four oxides.
The electrorheological (ER) properties of a composite material consisting nematic liquid crystal (LC) and gold nanoparticles covered with mesogenic groups are studied.The by normal alkyl chains LC compounds.The miscibility the is investigated polarizing optical microscopy (POM).In order to improve ER effect composite, simple strategy from viewpoint design in surface-modified lateral substitution groups.The presence leads slight enhanced compared that observed for 5CB.This study demonstrates...