A5022581631- Electrochemical Analysis and Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Electrocatalysts for Energy Conversion
- Conducting polymers and applications
- Ultrasound and Cavitation Phenomena
- Fuel Cells and Related Materials
- Oxidative Organic Chemistry Reactions
- Radical Photochemical Reactions
- Microfluidic and Capillary Electrophoresis Applications
- CO2 Reduction Techniques and Catalysts
- Ionic liquids properties and applications
- Asymmetric Hydrogenation and Catalysis
- Advanced Sensor and Energy Harvesting Materials
- Electrochemical sensors and biosensors
- Chemical Synthesis and Reactions
- Organic Electronics and Photovoltaics
- Nanomaterials for catalytic reactions
- Advanced Chemical Sensor Technologies
- Chemical Synthesis and Analysis
- Advanced Polymer Synthesis and Characterization
- Analytical Chemistry and Sensors
- Molecular Junctions and Nanostructures
- Ammonia Synthesis and Nitrogen Reduction
- Microwave-Assisted Synthesis and Applications
- Hybrid Renewable Energy Systems
Yokohama National University
2015-2024
Graduate School USA
2024
National Center of Neurology and Psychiatry
2022
Tokyo Institute of Technology
2005-2018
Direct evidence: The existence of methoxy radical species formed during an anodic oxidation in MeOH on a boron-doped diamond (BDD) electrode was confirmed by ESR spectroscopy. Effective production neolignan, licarin A, accomplished the BDD-mediated protocol (see picture).
On the double: When a poly(3-methylthiophene) (PT) film is doped on bipolar electrode with Bu4NPF6 as supporting electrolyte, includes PF6− anions composition gradient along potential electrode. The use of Et4NCl results in partial chlorination PT that reflects (see picture; inset: photograph film). Detailed facts importance to specialist readers are published ”Supporting Information”. Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors....
A new technique for the preparation of a highly clear and transparent emulsified aqueous solution containing immiscible monomer droplets with diameters few tens nanometres under surfactant-free conditions using tandem acoustic emulsification is described. Highly conductive polymer films were successfully prepared from such an solution.
The electrocatalytic semihydrogenation of alkynes to (Z)-alkenes using a proton-exchange membrane (PEM) reactor has been studied as an alternative the Lindlar catalytic system. We recently reported that Pt–Pd electrocatalysts achieved both high (Z)-alkene selectivity and production rate. However, mechanism hydrogenation on not elucidated. In present study, we systematically investigated in PEM with various compositions identified active sites via detailed characterizations. addition, roles...
Multiparameter screening of reductive carboxylation in an electrochemical flow microreactor was performed using a Bayesian optimization (BO) strategy. The developed algorithm features constraint on passed charge for the reaction, which led to suitable conditions being instantaneously found desired reaction. Analysis BO-suggested underscored physicochemical validity.
We have developed a novel electrosynthetic system for anodic substitution reaction using micro-flow reactor. This enables nucleophilic reactions to overcome the restraints such as oxidation potential of nucleophiles and stability carbocations by combined use ionic liquids media parallel laminar flow in
The electro-click reaction of azide-functionalized poly(3,4-ethylenedioxythiophene) (PEDOT-N3) and a terminal alkyne was investigated using electrogenerated Cu(I) species on bipolar electrode in gradient manner. introduction perfluoroalkyl group derived from the moiety onto PEDOT surface only at cathodic part successfully characterized by X-ray analyses properties modified film were studied. spectroscopic analysis rhodamine-functionalized prepared similarly manner also performed with UV-vis...
We have successfully demonstrated an efficient anodic aromatic C,C cross-coupling reaction using parallel laminar flow mode in a two-inlet microreactor. The model proceeded effectively even single flow-through operations and the desired product was obtained much higher current yields compared to conventional batch type cell.
Abstract In order to develop an efficient and greener method for organic chemical hydride production in the energy carrier system, electrocatalytic hydrogenation of toluene methylcyclohexane was carried out using a proton exchange membrane (PEM) reactor, which generally applied polymer electrolyte fuel cell industrial electrolysis technologies. The electrochemical conversion proceeded high current efficiencies (>90%) under sufficiently mild conditions with various metal-supported...
A new approach for the green synthesis of α-amino acids using electrochemical carboxylation imines in a flow microreactor is described.
The electrocatalytic hydrogenation of alkynes was performed in a proton-exchange membrane reactor. Product selectivity for the could be controlled by catalyst material and cathode potential. use Pd gave Z-alkenes selectively with excellent current efficiencies at relatively low electrolysis potentials. present system can provide hydrogenated products without hydrogen gas, which is safe compact compared to conventional systems.
The synthesis of α-amino acids was carried out in a continuous flow system. In this system, aldimines were efficiently generated situ via the dehydration-condensation aldehydes with anilines desiccant bed column filled 4 Å molecular sieves desiccant, followed by reaction CO2 an electrochemical microreactor to afford high moderate yields. present system can provide without using stoichiometric amounts metal reagents or highly toxic cyanide reagents.
We report the diastereoselective electrocatalytic hydrogenation of cyclic ketones using a proton-exchange membrane (PEM) reactor. The adsorbed monatomic hydrogen species (Hads) generated from protons at triple-phase boundary cathode were found to reduce with high diastereoselectivity. As as 94% cis-selectivity was realized under optimal conditions upon Rh catalyst. Operando infrared spectroscopy enabled direct observation ketone involved in reaction. also demonstrate 5 g scale electrolysis...
We have successfully demonstrated that a microflow reactor is extremely useful in controlling reactions involving an unstable o-benzoquinone. The key features of the method are effective o-benzoquinone generation and its rapid use for following reaction without decomposition system.
We have developed an novel electrochemical carboxylation system using a microreactor. In this system, of benzyl halides proceeds without the use sacrificial anode to give carboxylated products in excellent yields.
The highly efficient chemoselective hydrogenation of benzoic acids to cyclohexanecarboxylic was carried out in a proton-exchange membrane reactor under mild conditions without the carboxyl group.
The production of cyclic amines, which are vital to the pharmaceutical industry, relies on energy-intensive thermochemical hydrogenation. Herein, we demonstrate electrocatalytic hydrogenation nitrogen-containing aromatic compounds, specifically pyridine, at ambient temperature and pressure via a membrane electrode assembly with an anion-exchange membrane. We synthesized piperidine using carbon-supported rhodium catalyst, achieving current density 25 mA cm–2 efficiency 99% under circular flow...