Ryo Watanabe

ORCID: 0000-0003-1132-0096
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About
Contact & Profiles
Research Areas
  • Catalytic Processes in Materials Science
  • Catalysis and Oxidation Reactions
  • Catalysts for Methane Reforming
  • Catalysis and Hydrodesulfurization Studies
  • Zeolite Catalysis and Synthesis
  • Carbon dioxide utilization in catalysis
  • Ammonia Synthesis and Nitrogen Reduction
  • Electrocatalysts for Energy Conversion
  • Advanced Photocatalysis Techniques
  • Industrial Gas Emission Control
  • Catalytic C–H Functionalization Methods
  • Advancements in Solid Oxide Fuel Cells
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Synthesis and Reactivity of Heterocycles
  • Hydrogen Storage and Materials
  • Synthesis and Biological Evaluation
  • Advanced Bandit Algorithms Research
  • Synthesis and biological activity
  • Synthesis and Characterization of Heterocyclic Compounds
  • Organophosphorus compounds synthesis
  • Synthesis of heterocyclic compounds
  • Synthesis and Reactions of Organic Compounds
  • Catalytic Alkyne Reactions
  • Phosphorus compounds and reactions

Shizuoka University
2016-2025

Okayama University
2023

Akita University
2021

Tohoku University
1987-2020

Kitasato University
2018-2019

Hokkaido University
2015-2018

Takeda (Japan)
2018

University of Yamanashi
2018

Graduate School USA
2015

Sapporo Science Center
2015

Natural kaolin-based Ni catalysts have been developed for low-temperature CO2 methanation. The were prepared via a one-step co-impregnation of and Ce onto natural kaolin-derived metakaolin using microwave-assisted hydrothermal method as an acid-/base-free synthesis method. influences microwave irradiation promotion on the catalytic enhancement including conversion, CH4 selectivity, yield experimentally investigated by test as-prepared in fixed-bed tubular reactor. relationship between...

10.1021/acsomega.1c01231 article EN cc-by-nc-nd ACS Omega 2021-05-18

Solar energy is one of the most rapidly growing technologies and directly involved in transitioning toward a more sustainable society. to hydrogen fuel generation via photocatalysis ideal for addressing crisis worldwide. It requires discovery new materials or combination efficiently harvest sunlight with maximum solar-to-photon conversion efficiency. Plasmonic catalysts have recently emerged as class are promising candidates confining light nanoscale regimes localized surface plasmon...

10.1021/acs.energyfuels.3c02341 article EN Energy & Fuels 2023-10-11

Abstract Catalyst–substrate hydrogen bonds in artificial catalysts usually occur aprotic solvents, but not protic contrast to enzymatic catalysis. We report a case which ligand–substrate hydrogen‐bonding interactions cooperate with transition‐metal center alcoholic solvents for enantioselective Copper(I) complexes prolinol‐based hydroxy amino phosphane chiral ligands catalytically promoted the direct alkynylation of aldehydes terminal alkynes afford nonracemic secondary propargylic alcohols...

10.1002/chem.201301280 article EN Chemistry - A European Journal 2013-08-16

Copper-catalyzed 6-<italic>endo</italic> cyclization of <italic>N</italic>-propargylic β-enaminocarbonyls was developed for the synthesis oxidation-labile 1,6-dihydropyridines.

10.1039/c5ob00356c article EN Organic & Biomolecular Chemistry 2015-01-01

Abstract This study investigated the effects of an e-reaction system on iso-C5 dehydrogenation. In this system, current is passed through a honeycomb-type catalyst, and reaction field heated by resistance substrate. Compared with conventional dehydrogenation via external heating, e-Reaction suppresses side reactions such as thermal decomposition selectively promotes Furthermore, shortening substrate length enhanced selectivity C5-olefins.

10.1093/chemle/upae228 article EN Chemistry Letters 2025-01-01

This study explores the development of a Joule-heated reaction field utilizing an electrically driven spiral-shaped catalyst for efficient CO2 methanation. Infrared thermal imaging in uninsulated reactor reveals rapid and uniform temperature rise along spiral structure. With 10 W input, conversion reached 80%, while 75% was maintained even at 5 W. The catalyst's twist angle played crucial role optimizing heat transfer by enhancing swirl flow. Long-term stability tests demonstrated sustained...

10.1039/d4ra08236b article EN cc-by RSC Advances 2025-01-01

An image of the temperature profile catalyst layer in a multi-stage spiral-type structured system.

10.1039/d4re00606b article EN Reaction Chemistry & Engineering 2025-01-01

Different synthesis and characterization techniques for WO 3− x photocatalysts recent developments in the application of visible-NIR mediated transformation reactions.

10.1039/d4cy00645c article EN Catalysis Science & Technology 2024-01-01

the cross-coupling reaction of 2-chloro-3-iodo- and 4-chloro-3-iodopyridines with phenylacetylene in presence dichlorobis(triphenylphosphine)palladium occurred at 3-position. The 3-ethynylpyridines containing an adjacent chloro group were convertible to thienopyridines by traatment sodium hydrosulfide. Similarly, various thieno[2, 3-d]pyrimidines synthesized from 4-chloro-5-iodopuyrimidines. One-step synthesis furopyridines palladium-catalyzed iodohydroxypyridines terminal acetylenes is also...

10.1248/cpb.34.2719 article EN Chemical and Pharmaceutical Bulletin 1986-01-01
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