A5008162685- Mesoporous Materials and Catalysis
- Phase Equilibria and Thermodynamics
- Photonic Crystals and Applications
- Electronic Packaging and Soldering Technologies
- Electrochemical Analysis and Applications
- Material Dynamics and Properties
- nanoparticles nucleation surface interactions
- Advanced Physical and Chemical Molecular Interactions
- Electrocatalysts for Energy Conversion
- Mass Spectrometry Techniques and Applications
- Aluminum Alloys Composites Properties
- Catalytic Processes in Materials Science
- Silicon Carbide Semiconductor Technologies
- Advanced Thermodynamics and Statistical Mechanics
- Spectroscopy and Quantum Chemical Studies
- Porphyrin and Phthalocyanine Chemistry
- Nonlinear Dynamics and Pattern Formation
- Advanced Chemical Physics Studies
- Photonic and Optical Devices
- Gas Sensing Nanomaterials and Sensors
- Analytical chemistry methods development
- Aerogels and thermal insulation
- Thermal properties of materials
- 3D IC and TSV technologies
- Thermodynamic properties of mixtures
Toyota Central Research and Development Laboratories (Japan)
2012-2024
Ritsumeikan University
2024
Daido University
2013-2019
Tokyo Denki University
2014-2018
Hosei University
2002-2015
Cosmetics Europe
2014
Paul Scherrer Institute
2012
Toyota Motor Corporation (Switzerland)
2006-2010
University of British Columbia
2008
Nagoya University
1996-2007
Synthesis of a solid chelating ligand for the formation efficient heterogeneous catalysts is highly desired in fields organic transformation and solar energy conversion. Here, we report surfactant-directed self-assembly novel periodic mesoporous organosilica (PMO) containing 2,2'-bipyridine (bpy) ligands within framework (BPy-PMO) from newly synthesized organosilane precursor [(i-PrO)3Si-C10H6N2-Si(Oi-Pr)3] without addition any other silane precursors. BPy-PMO had unique pore-wall structure...
A simple and versatile strategy has been employed to fabricate a "microreactor" consisting of nanoparticles encapsulated in hollow core monodispersed mesoporous silica shell. First, based on our synthesis method for spheres with radially aligned mesopores, have synthesized using amino modified polystyrene beads as template. We then found that introduction metal oxide precursor into the incipient wetness technique leads selective formation spheres. Using this strategy, inorganic (TiO2 Fe2O3)...
This paper describes the physicochemical properties of a rhenium (Re) complex [Re(bpy)(CO)3 Cl] immobilized on bipyridine-periodic mesoporous organosilica (BPy-PMO) acting as solid support. The Re generated metal-to-ligand charge transfer absorption band at 400 nm. wavelength is longer than that exhibited by Re(bpy)(CO)3 Cl in polar solvent acetonitrile (371 nm) and almost equal to nonpolar toluene (403 nm). photocatalytic activity this heterogeneous was lower homogeneous due reduced...
A newly developed impregnation method to incorporate a large quantity of iron oxide into mesoporous silica hosts has been successfully employed synthesize highly monodispersed magnetic oxide/silica nanocomposite spheres, which can directly serve as building blocks form three-dimensionally ordered structure through self-assembly.
In this letter, we report a novel method for controlling the light reflection of colloidal crystal. Highly monodisperse mesoporous silica spheres have been successfully organized into hexagonally close-packed crystal film. Just by introducing water vapor fabricated film, structural color and spectra were changed dramatically because adsorption occurring in channels. This phenomenon can be observed reversibly over five cycles. We are convinced that is first on film dynamically taking...
Highly monodispersed thiol-functionalized nanoporous silica spheres with diameters in the submicron range were successfully synthesized via a surfactant-directed co-condensation of tetramethylorthosilicate (TMOS) and 3-mercaptopropyltrimethoxysilane (MPTMS) very dilute alkaline methanol–water mixture. The incorporation thiol groups induced no drastic change particle morphology our reaction system, uniform spherical shape ordered hexagonal porous structure simultaneously achieved when molar...
Monodispersed mesoporous silica spheres (MMSSs) are colloid particles with uniform mesopores and particle diameters. MMSS ionic colloidal crystals can be fabricated by self-organization immobilization using a hydrogel. From measurements of the emission light gel-immobilized MMSSs where laser dye was incorporated, occurred through excitation YAG laser.
In this paper, we report on the pore expansion of monodispersed mesoporous silica spheres (MMSS) by a swelling agent incorporation method, which agents such as various hydrocarbons were incorporated into mesopores. Mesopores expanded to more than twice size (5.5 nm) original one (2.5 nm). MMSS was achieved while radially ordered hexagonal mesopores with spherical morphology and high monodispersity retained. addition, have successfully obtained highly porous FePt—MMSS composites incorporating...
Simple and rapid screening of agrochemicals greatly contributes to food environmental safety. Matrix-free laser desorption/ionization mass spectrometry (LDI-MS) is an effective tool for high-throughput analysis low-molecular-weight compounds. In this study, we report a UV-laser-absorbing organosilica film the sensitive detection various sulfonylurea herbicides using LDI-MS. Organosilica films with fluoroalkyl groups on organic part are fabricated, followed by additional modification silica...
Abstract Photoelectrochemical (PEC) capacitors have recently garnered increasing interest based on their charge accumulation and dissipation mechanisms, particularly with respect to spike overshoot currents, therefore been investigated for biomedical applications, including nerve photostimulation biomolecular sensing. Porous metal-organic frameworks (MOFs) are capable of accumulating large amounts photogenerated at surface sites, owing areas, may potential as a new material use in PEC...
This paper describes a novel RC compact thermal model which has the capability of representing behavior multi chip inverter module peculiar to HV. can take into account lateral heat spreading within modules and interference among Si chips. The was validated in comparison temperature transient responses results calculated using proposed FEM. electro-thermal coupling simulation this offers reasonable accuracy for prediction HV module.
Monodisperse poly(3,4(ethylenediox( ythiophene)–silica microparticles (PEDOT–silica) are prepared (see figure). The composite materials ordered by the vertical deposition technique, yielding well(formed opal films of 15 µm thickness. silica hosts can be selectively removed etching with HF, leaving behind an intact PEDOT microparticle.
By adapting a novel surfactant exchange method, in which surfactants inside mesopores are completely exchanged by with longer alkyl chain lengths, pore-expansion of monodisperse mesoporous silica spheres (MMSS) radially ordered hexagonal regularity was attained while retaining spherical morphology and high monodispersity.
We have demonstrated the fabrication of a colloidal crystalline array (synthetic opal) from monodispersed mesoporous silica spheres (MMSS) and control its optical response simply by changing amount benzene vapor adsorbed into pores MMSS. It was revealed that refractive index crystal MMSS showed an 11.7% increase taking advantage adsorption, thereby, structural color changed reversibly. also conducted same measurement on without mesopores observed no change in or color. This gives rise to...
Abstract A new poly( p ‐phenylenevinylene) (PPV) composite material has been developed by the incorporation of insoluble PPV polymer chains in pores monodisperse mesoporous silica spheres through an ion‐exchange and situ polymerization method. The distribution within resultant colloidal particles is characterized electron microscopy, energy dispersive X‐ray microanalysis, powder diffraction, nitrogen adsorption. It was found that selectively incorporated into mesopores host well distributed...
A nanocasting method via chemical vapor deposition of acetonitrile was successfully employed to fabricate porous carbon colloidal crystal using from monodispersed mesoporous silica spheres (MMSS) as a sacrificial scaffold. The mesostructure well periodic arrays within (111) plane MMSS were replicated for the (black opal) with length scale in centimeter range. Brilliant iridescent colors clearly observed first time on black fabricated spheres, and they changed dramatically accordance...