A5082539520- Catalytic Processes in Materials Science
- Magnetism in coordination complexes
- Advanced Chemical Physics Studies
- Catalysis and Oxidation Reactions
- Metal-Catalyzed Oxygenation Mechanisms
- Organic and Molecular Conductors Research
- X-ray Diffraction in Crystallography
- Spectroscopy and Quantum Chemical Studies
- Crystallization and Solubility Studies
- Photosynthetic Processes and Mechanisms
- Nanomaterials for catalytic reactions
- Electron Spin Resonance Studies
- Porphyrin and Phthalocyanine Chemistry
- Catalysis and Hydrodesulfurization Studies
- Nanocluster Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Molecular Junctions and Nanostructures
- Metal complexes synthesis and properties
- Free Radicals and Antioxidants
- Metalloenzymes and iron-sulfur proteins
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced NMR Techniques and Applications
- Lanthanide and Transition Metal Complexes
- Synthesis and Properties of Aromatic Compounds
- Crystallography and molecular interactions
Osaka University
2015-2024
Toneyama National Hospital
2024
Toyonaka Municipal Hospital
2024
Kyoto University
2013-2022
ORCID
2021
Toyon (United States)
2015-2020
Japan Science and Technology Agency
2008-2015
University of Hyogo
2009-2014
Graduate School USA
2014
Osaka Prefecture University
2013
Supported gold nanoparticles exhibit high catalytic activity not only at low temperatures, but also under the presence of moisture. The effect moisture on CO oxidation over Au/TiO2, Au/Al2O3, and Au/SiO2 was studied 273 K. It found that activities are enhanced by up to two orders magnitude, depends type oxide support (see picture, TOF=turnover frequency).
The rate of H2–D2 exchange increases in proportion to the inverse square mean diameter gold particles supported on TiO2 (see picture), which indicates that hydrogen dissociation takes place perimeter interfaces between and catalytic activity for H2 is correlated neither a change fraction edge or corner sites nor electronic nature induced by quantum size effect. Detailed facts importance specialist readers are published as ”Supporting Information”. Such documents peer-reviewed, but not...
of the surveyWe sent out survey questionnaire forms to departments each category in all 1535 institutions (602 cardiovascular, 793 general thoracic and 577 esophageal) nationwide early April 2014. The response rates by end December 2014 were 97.8, 96.0, 96.9 %, respectively. This high rate has been keep throughout recent survey, more than 96 % fields 2013 be congratulated.
We computationally evaluated the standard hydrogen electrode (SHE) potential in aqueous phase and Gibbs energy of a proton from experimental pKa values alcohol molecules. From "golden standard" CCSD(T)/aug-cc-pVTZ level calculation, we estimated SHE as 4.48 V, which is very close to IUPAC-recommended value 4.44 V. As applications Gaussian-3 (G3) methods, also reproduce calculations, computed various redox potentials for vitamin series. For C, support result +0.35 V predict d-ascorbic acid be...
Abstract Au nanoparticles can be deposited on MCM-41 by chemical vapor deposition (CVD) of dimethyl gold acetylacetonate. They exhibit high catalytic activities for the oxidation CO and H2 at low temperatures, below above 273K, respectively.
A simple, effective method has been demonstrated to synthesize Au/Pt/Ag trimetallic nanoparticles (TNPs) with an average diameter of 1.5 nm by reduction the corresponding ions rapid injection NaBH4. The prepared TNPs were characterized UV–vis, X-ray diffraction, photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy, and energy dispersion in scanning microscopy. activity is several times higher than that Au NPs nearly same particle size. high catalytic activities...
Recent studies have shown that cancer immunotherapy could be a promising therapeutic approach for the treatment of cancer. In present study, to identify novel tumor-associated antigens (TAAs), proteins expressed in panel cells were serologically screened by immunoblot analysis and eukaryotic elongation factor 2 (eEF2) was identified as an antigen recognized IgG autoantibody sera from group patients with head neck squamous cell carcinoma (HNSCC) or colon Enzyme-linked immunosorbent assay...
Let your light shine: The first example of a heteroleptic bis(dipyrrinato)zinc(II) complex, 7a, was synthesized from two types dipyrrins prepared by new deboration protocol for BODIPYs. Complex 7a showed higher fluorescence quantum yield (0.76 in toluene) than the corresponding homoleptic complexes 5a and 6. superiority as luminophore more prominent polar CH2Cl2 (see picture). Detailed facts importance to specialist readers are published "Supporting Information". Such documents...
Professor Masatake Haruta's distinguished scientific achievements are highlighted in heterogeneous catalysis by gold (Au). In 1982, he discovered that Au became highly active for CO oxidation even at 200 K when was deposited as nanoparticles (NPs) smaller than 5 nm on 3d transition metal oxides. After this finding, and his co-workers have developed many preparation methods the deposition of NPs clusters onto a wide variety supports. By kinetic, theoretical, surface science studies, Haruta...
The activity for glucose oxidation of colloidal Au/Pd single-atom catalysts was 17 times higher than that Au NCs with similar sizes.
Abstract When gold is deposited as nanoparticles (NPs) with mean diameters of 2–5 nm or clusters below 2 onto a variety supports such metal oxides, carbons, polymers, etc., the supported Au NPs exhibit unique catalytic properties, while bulk almost inert catalyst. A lot research works indicate that key factors catalysis by are selection supports, control NP size, shape NPs, and strong junction between because perimeter zone around acts active site for many reactions. In order to elucidate...