A5084453278- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Fuel Cells and Related Materials
- Advanced Battery Materials and Technologies
- Electrocatalysts for Energy Conversion
- Crystallography and molecular interactions
- Organometallic Complex Synthesis and Catalysis
- Ionic liquids properties and applications
- Asymmetric Hydrogenation and Catalysis
- Conducting polymers and applications
- Corrosion Behavior and Inhibition
- Acoustic Wave Resonator Technologies
- Advancements in Battery Materials
- Electrochemical Analysis and Applications
- Nanoparticle-Based Drug Delivery
- Metalloenzymes and iron-sulfur proteins
- Synthetic Organic Chemistry Methods
- Advanced battery technologies research
- Anodic Oxide Films and Nanostructures
- Metal-Organic Frameworks: Synthesis and Applications
- Dielectric properties of ceramics
- Magnetic and transport properties of perovskites and related materials
- Iron oxide chemistry and applications
Shizuoka University
2015-2025
Nagoya University
2008-2015
Japan Science and Technology Agency
2011-2015
Nagoya University of Commerce and Business
2013
The University of Tokyo
2013
Tokyo Institute of Technology
2002-2010
National Institute of Advanced Industrial Science and Technology
2010
University of Münster
2008
Kure Medical Center
1999
Osaka University
1987-1988
The photoelectrochemical properties of CuGaSe2 modified by deposition a thin CdS layer were investigated. formed p-n junction on the surface electrode, improving its properties. There was an optimal thickness because balance between charge separation effect and light absorption CdS. CdS-deposited showed high stability under observed reaction conditions evolved hydrogen continuously for more than 10 days.
Molecular crystal electrolytes are promising solid owing to their ionic conductivity and mechanical flexibility. However, solid-state batteries using these suffer from the large resistance at interfaces with positive electrodes. Herein, we fabricate a battery Li{N(SO2F)2}(NCCH2CH2CN)2, referred as Li(FSA)(SN)2, molecular-crystal electrolyte, demonstrate stable thin-film cycling. The novel fabrication method forms electrochemically interfaces, allowing cycle current density of up 500 μA cm−2...
Magnetic nanoparticles (MNPs) generate heat when a high-frequency magnetic field (HFMF) is applied to them. Induction useful not only for hyperthermia treatment but also as driving force drug-release. beta-Cyclodextrin (CD) can act drug container because of its inclusion properties. Drugs incorporated in the CD thus be released through use induction heating, or hyperthermic effects, by applying HFMF. In this study, we have synthesized folic acid (FA) and CD-functionalized superparamagnetic...
Folic acid-functionalized Fe3O4 nanoparticles (FA-Fe3O4 NPs) were synthesized from iron(III) 3-allylacetylacetonate (IAA) through in situ hydrolysis and ligand modification, by applying the principle of "click chemistry". The γ-carboxylic acid FA was successfully bound to NPs without loss α-carboxylic group folic (FA), which has an affinity for folate receptors (FRs) expressed on tumor cells. monodisperse, their size controlled varying conditions IAA hydrolysis. FA-Fe3O4 NPs, had diameters 8...
Cysteine-modified Fe3O4 nanoparticles (Cys-Fe3O4 NPs) were synthesized by the one-pot biofunctionalization of allyl-functionalized NPs (allyl-Fe3O4) with cysteine using in situ hydrolysis−condensation iron(III) allylacetylacetonate and thiol−ene click reaction. The particle size Cys-Fe3O4 measured transmission electron microscopy X-ray diffraction analysis was ∼8 nm. soluble water had a hydrodynamic diameter 22 nm prolonged stability water. They superparamagnetic, which confirmed fitting...
Molecular crystals composed of lithium bis(fluorosulfonyl)amide (LiFSA) and succinonitrile (SN), hereafter referred to as Li(FSA)(SN)2, are a promising solid electrolyte. To realize wider application molecular crystal electrolytes, it is critical investigate the interface Li(FSA)(SN)2 5 V-class positive electrodes. Here, we studied with LiNi0.5Mn1.5O4 (LNMO) electrodes utilizing modeled thin-film batteries. The Li(FSA)(SN)2|LNMO interfaces degrade, leading an increase in resistance capacity...
Abstract Red blood cells (RBCs) are able to avoid filtration in the spleen prolong their half‐time body because of flexibility and unique shape, or a concave disk with diameter some 10 μm. In addition, they can flow through capillary vessels, which smaller than RBCs, by morphing into parachute‐like shape. this study, flexible RBC‐like polymer particles synthesized electrospraying based on electrospinning. Furthermore, magnetite nanoparticles fluorescent dye encapsulated via situ hydrolysis...
There is an urgent need to develop solid electrolytes based on organic molecular crystals for application in energy devices. However, the quest with high Li-ion conductivity still its infancy. In this study, of a Li{N(SO2F)2}(NCCH2CH2CN)2 crystal reported. The shows 1 × 10-4 S cm-1 at 30 °C and 10-5 -20 °C, low activation 28 kJ mol-1. one highest values attainable by crystals, whereas that approximately 2 orders magnitude higher than previously reported values. Furthermore, all-solid-state...
Li-ions constructing a crystalline framework behave as fast transport carriers well owing to the surrounding flexible moieties in succinonitrile-based molecular crystal electrolyte.
Nonplatinum metal (NPM) catalysts for the oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFCs) have been developed; however, NPM still need to be improved terms of both their catalytic activity and durability. To overcome these problems, an Fe active site contained within a more compact ligand than conventional, porphyrinic, 16-membered ring ligands, or specifically, hexaaza macrocyclic with 14-membered (14MR), was developed. In this study, durability Fe-14MR...
Lead-free piezoelectric (K,Na)(Nb,Ta)O 3 thin films were prepared by chemical solution deposition. Perovskite single-phase (K 0.5 Na )(Nb 0.8 Ta 0.2 )O and Mn-doped successfully fabricated at 600 °C on Pt/TiO x /SiO 2 /Si substrates controlling the excess amounts of K Na, Mn doping. The showed poor ferroelectric polarizations due to insufficient insulating resistance room temperature. leakage current density films, especially in high-applied-field region, was markedly reduced doping with a...
For the broad application of polymer electrolyte fuel cells (PEFCs), development nonprecious-metal (NPM) catalysts for oxygen reduction is extremely important. To date, many NPM have been synthesized by pyrolyzing Fe-, N-, and C-containing precursors; however, they suffer from low density uncertain chemical structure their active sites. This study reports a novel 14-membered macrocyclic Fe complex, which was inspired FeN4 centers in pyrolyzed catalysts, unlike typical MN4 complexes that...
One-pot syntheses of size- and shape-controlled spinel ferrite, MFe2O4 (M = Fe, Co, Mn), nanocrystals (NCs) larger than 20 nm in size are achieved by the thermolysis mixed-valence triiron complexes heterotrimetallic as a precursor using benzilic acid (BA) capping ligand. The molar ratio BA toward plays critical role determining morphology NCs. With increase concentration, Fe3O4 NCs changed from truncated-octahedron to cube. magnetic properties ferrite obtained use template molecules were...
Plastic crystallinity of lithium salt, [LiB(OCH2CH2OCH3)4] (1), and its solid-state ionic conductivity are disclosed. The addition small amounts bis(trifluoromethanesulfonyl)imide (LiTFSI) to borate 1 led the drastic increase transport number electrolyte.
FeN4 active sites have been studied as non-Pt group metal (non-PGM) catalysts for the oxygen reduction reaction (ORR). The authors recently developed Fe(II) 1,14:7,8-ditethenotetrapyrido-[2,1,6-de:2′,1′6′-gh:2″,1″,6″-na][1,3,5,8,10,12] hexaazacyclotetradecine (Fe-14MR) an complex incorporating a 14-membered ring. This exhibited higher ORR activity and greater durability than Fe phthalocyanine, conventional having 16-membered In present study, of this Fe-14MR supported on C (Fe-14MR/C) were...
A novel trilithium compound, Li(3)[B(C(6)H(4)O(2)){O(CH(2)CH(2)O)(3)CH(3)}(2)][N(SO(2)CF(3))(2)](2) (1-2.0), with solid-state ionic conductivity was synthesized. The crystal structure of 1-2.0 consists the one-dimensional conduction paths. paths were afforded as a result self-assembled stacking component molecules channel structures containing lithium ions. In this supramolecule, one ion holds in specific positions to construct supramolecular thermally stable and others behave carrier ions...
Organic ionic plastic crystals (OIPCs) with cyclic perfluoroalkyl sulfonylamide as a counter anion were synthesized an intention of expanding the temperature range their crystalline phase. The thermal analysis obtained OIPCs showed solid–solid phase transition below room and high melting point above 250 °C, that indicated behavior in wide range, well durability up to approximately 370 °C. electrochemical measurements these revealed solid-state conductivity window between 0.4 6.2 V vs. Li/Li+.
The preparation of reduction-resistant (Ba,Ca)TiO 3 ceramics as lead-free piezoelectric materials was studied. To improve their electrical properties, (100),(001)-oriented (Ba 0.85 Ca 0.15 )TiO were fabricated by the reactive templated grain growth method using a mixture platelike CaTiO and BaTiO particles. particles prepared through topochemical microcrystal conversion process CaBi 4 Ti O 15 BaBi plate-like precursor crystals. 100 orientation degree grain-oriented 92%, estimated Lotgering's...
Reaction of the triruthenium pentahydride complex {Cp*Ru(μ-H)}3(μ3-H)2 (1; Cp* = η5-C5Me5) with acetylene was investigated, in which μ3-ethylidene−μ3-η2(∥)-ethyne {Cp*Ru(μ-H)}3(μ-CMeH){μ3-η2(∥)-CHCH} (2) produced via formation intermediary bis(μ-vinyl) {Cp*Ru(μ-H)}3(μ-η1:η2-CHCH2)2 (3). An α-C−H bond μ-ethylidene ligand 2 underwent oxidative addition upon thermolysis to yield μ3-ethylidyne−μ3-η2(∥)-ethyne (Cp*Ru)3(μ-H)2(μ3-CCH3){μ3-η2(∥)-CHCH} (5), showed fluxional behavior both μ3-ethyne...