A5043718142- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Cardiac electrophysiology and arrhythmias
- Advanced battery technologies research
- Advanced Chemical Physics Studies
- Electrochemical Analysis and Applications
- Catalysis and Oxidation Reactions
- Organic Chemistry Cycloaddition Reactions
- Synthesis and Reactions of Organic Compounds
- Fluorine in Organic Chemistry
- Axial and Atropisomeric Chirality Synthesis
- Molecular spectroscopy and chirality
- Gas Sensing Nanomaterials and Sensors
- Carbon dioxide utilization in catalysis
- Copper-based nanomaterials and applications
- Mathematics and Applications
- Asymmetric Synthesis and Catalysis
- Electron and X-Ray Spectroscopy Techniques
- Cardiac Arrhythmias and Treatments
- Cardiovascular Effects of Exercise
- Synthesis and Biological Evaluation
- Chemical Reaction Mechanisms
- Ion channel regulation and function
- Connexins and lens biology
Yamaguchi University
2013-2025
Tokiwa Park
2020-2023
Shimane Prefectural Central Hospital
2020-2023
Hokkaido University
2009-2022
Toyota Technological Institute
2021
Hachinohe National College of Technology
2019
Keio University
1995-2018
Kyushu University
1984-2018
The University of Tokyo
2009-2013
Nagaoka University of Technology
2010
The development of robust and efficient water splitting photocatalysts overcomes a long-standing barrier to sustainable large-scale solar hydrogen evolution systems.
Triazole-based g-C3N5, a potential catalyst, has received little attention over the years. We prepared phosphorus-doped g-C3N5 with one triazole and two triazine units for first time to investigate its photoelectrochemical (PEC) photocatalytic properties. The doping states crystalline structures of samples were determined using X-ray techniques, namely, diffraction, photoelectron spectroscopy, absorption fine structure analysis. Our results suggested that phosphorus was substituted into...
Background:We investigated the incidence of acute coronary syndrome (ACS) in a non-epidemic area coronavirus disease-2019 (COVID-19) Japan.
The mechanism of hydrogen evolution by a core/shell noble-metal/Cr2O3 particulate as highly efficient cocatalyst for overall water splitting under visible light using the photocatalyst (Ga1−xZnx)(N1−xOx) is investigated electrochemical and in situ spectroscopic measurements model electrodes. electrodes are prepared deposition 1.8−3.5 nm thick Cr2O3 films on Rh Pt plates evaluated systems Rh/Cr2O3 Pt/Cr2O3 particulates, which have previously been applied effectively cocatalysts this system....
The interaction of photogenerated carries in GaN photocatalyst with Pt cocatalyst for hydrogen evolution under irradiation was investigated from situ ATR-SEIRAS measurement by following the CO vibrational frequency. After irradiation, frequency shifted higher, indicating that Fermi level particles positively holes. Thereafter, a lower peak appeared, some negatively to potential electrons, which is essential function cocatalysis evolution.
The CO oxidation reaction on the Pd(111) model catalyst at various temperatures (200–400 °C) under hundreds mTorr pressure conditions has been monitored by in situ ambient X-ray photoelectron spectroscopy and mass spectroscopy. In observation of revealed that surface is covered molecules a lower temperature (200 °C), while higher (300–400 several oxide phases are formed surface. We found reactivity enhanced presence significantly suppressed formation cluster PdO bulk oxide. titration...
Thin films of the lanthanum titanium oxynitride perovskite (LaTiOxNy) synthesized by reactive radio-frequency sputtering on conductive Nb-doped strontium titanate (Nb:SrTiO3) substrates are evaluated as photoelectrodes for water splitting reaction under visible light. The characterized X-ray diffraction analysis, energy-dispersive spectroscopy, scanning electron and atomic force microscopy, ultraviolet−visible spectroscopy. with polycrystalline, oriented, or epitaxial structures obtained...
In order to find out principal dimensions of touch, 50 samples various texture, shape, size, and material, were collected.(1) Twenty haptic differential rating scales applied factor analyzed (S.D. touch).(2) Distance matrix constructed indirectly from the profiles 25 (selected 50) was by Torgerson-Indow's multi-dimensional scaling (MDS). Most important tactual impressions are (i) heaviness coldness (ii) wet smoothness, (iii) hardness. MDS yields nearly perfect one pattern. Metals fibers at...
In situ O K-edge X-ray absorption fine structure (XAFS) spectroscopy was applied to investigate the electronic and structural change in nickel–borate (Ni–Bi) electrocatalyst during oxygen evolution reaction (OER). An peak observed around 528.7 eV at 1.0 V versus Ag/AgCl a potassium borate aqueous solution, which relates with formation of nanoscale order domains edge-sharing NiO6 octahedra Ni–Bi electrocatalyst. XAFS spectra were measured variation electrode potential from 0.3 up V. The peaks...
Even though the oxygen evolution reaction (OER) is thermodynamically much more favored than chlorine (CER), former sluggish. Thus, electrolysis of solutions containing a high concentration chlorides yields preferentially chlorine. In this study, thin film consisting oxygen-deficient and disordered manganese oxide nanolayers on fluorine-doped tin (FTO) electrode exhibited selectivity for OER over CER in 0.5 M NaCl solution. The catalyst was fabricated by electrodeposition layered dioxide...
Some common onium salts catalysed selective urethane production from amines and alkyl halides in supercritical carbon dioxide, which acted not only as an alternative to organic solvents but also a phosgene replacement; the reaction efficiency was 50100 times higher than that attained heptane.
Catalytic CO oxidation reaction on a Pd(100) single-crystal surface under several hundred mTorr pressure conditions has been studied by ambient X-ray photoelectron spectroscopy and mass spectroscopy. In-situ observation of the reveals that two pathways switch over alternatively depending temperature. At lower temperatures, is covered molecules CO2 formation rate low, indicating poisoning. higher temperatures above 190 °C, an O-Pd-O trilayer oxide phase formed drastically increases. It likely...
The electronic structure of a solid solution between GaN and ZnO, GaN-rich (Ga1−xZnx)(N1−xOx), was investigated by photoluminescence spectroscopy plane wave based density functional method. Photoluminescence excitation spectra (PLE) (Ga1−xZnx)(N1−xOx) photocatalysts (x = 0.05−0.11) at 20 K had PLE edges in the UV region addition to those undoped Zn-doped GaN. However, absorption appeared visible region, indicating that intrinsic band gap solutions is derived from component. (PL) bands were...
Lanthanoid oxide modifier layers were applied to Rh metal nanoparticles on (Ga1–xZnx)(N1–xOx) photocatalyst for overall water splitting under visible-light irradiation. Structural analysis by transmission electron microscopy, energy-dispersive X-ray spectroscopy, photoelectron and absorption spectroscopy revealed that lanthanoid(III) coated the (Ga1–xZnx)(N1–xOx), although they also deposited directly surface. Certain lanthanoid (La, Pr, Sm, Gd, Dy) functioned as modifiers...
In the first experiment, distance matrix was constructed indirectly from taste profiles of 17-18 amino acids, and this analyzed by Torgerson's model multi-dimensional scaling (MDS). The results showed a triangular pattern on two-dimensional plane, apices being sweet, sour, bitter.In second part, direct judgment similarity, among pairs acids NaCl, at concentration levels ×4, ×12, ×32 their thresholds. MDS yielded quadrilateral plane for ×4 concentration, while very thin tetrahedron were...
Recombination kinetics of photogenerated electrons in n-type and p-type GaN photoelectrodes active for H(2) O(2) evolution, respectively, from water was examined by time-resolved IR absorption (TR-IR) spectroscopy. Illumination a film with UV pulse (355 nm 6 ns duration) gives transient interference spectra both transmittance reflection modes. Simulation shows that the are caused electrons. We observed recombination microsecond region is greatly affected applied potentials, lifetime becoming...