Search Results - "Sawabe, Kyoichi"

Enhanced CO oxidation by reversible structural variation of supported Ag nanoparticle catalyst from single to twin by CO treatment by Tamura, Takehiro, Ohyama, Junya, Sawabe, Kyoichi, Satsuma, Atsushi

“…Twinned structure of metal nanoparticles can strongly affect catalysis because of its unique atomic alignment and bond strain in metal nanoparticles. Here, the…”
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Identification of a Stable Ozonide Ion Bound to a Single Cadmium Site within the Zeolite Cavity by Oda, Akira, Sawabe, Kyoichi, Ohkubo, Takahiro, Kuroda, Yasushige

“…Molecular metal oxides are invoked as the key intermediate in a variety of oxidative reactions. Although an atomic oxygen ligand and molecular O2 ligands are…”
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How to Constrain Metal–Oxyl Bonds on a Solid Surface? Lesson from Isovalent Zn(II)–Oxyl and Ga(III)–Oxyl Bonds Isolated in Zeolite Matrix by Oda, Akira, Tanaka, Tomoyasu, Sawabe, Kyoichi, Satsuma, Atsushi

“…Isolation of the atomic O radical anion bound to a metal ion (metal–oxyl) on solid surfaces is highly desirable for an understanding of how we should design…”
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Orbital Trap of Xenon: Driving Force Distinguishing between Xe and Kr Found at a Single Ag(I) Site in MFI Zeolite at Room Temperature by Oda, Akira, Kouzai, Hiroe, Sawabe, Kyoichi, Satsuma, Atsushi, Ohkubo, Takahiro, Gotoh, Kazuma, Kuroda, Yasushige

“…Noble gas (Ng) elements are stable because of their octet electronic configuration, and thus Ng capture and purification are highly challenging. Here, we show…”
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Theoretical Study on Carbon Monoxide Adsorption on Unsupported and γ‑Al2O3‑Supported Silver Nanoparticles: Size, Shape, and Support Effects by Sawabe, Kyoichi, Satsuma, Atsushi

“…Nanoparticles (NPs) supported on metal oxides exhibit high catalytic activities for various reactions. The shape and oxidation state of such NPs, which are…”
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Oxidant-Free Dehydrogenation of Alcohols Heterogeneously Catalyzed by Cooperation of Silver Clusters and Acid-Base Sites on Alumina by Shimizu, Ken-ichi, Sugino, Kenji, Sawabe, Kyoichi, Satsuma, Atsushi

“…Trifunctional green catalysis: In‐depth characterization shows that oxidant‐free selective oxidation of alcohols by silver nanoparticles on γ‐Al2O3, as a new…”
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Ag–M (M: Ni, Co, Cu, Fe) bimetal catalysts prepared by galvanic deposition method for CO oxidation by Mahara, Yuji, Ishikawa, Hiroyuki, Ohyama, Junya, Sawabe, Kyoichi, Satsuma, Atsushi

“…[Display omitted] •Ag–M/SiO2 (M: Fe, Co, Ni, Cu) catalysts prepared by galvanic deposition.•Ag was successfully introduced on Fe, Co, Ni, and Cu particles…”
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Substrate-Specific Heterogeneous Catalysis of CeO2 by Entropic Effects via Multiple Interactions by Tamura, Masazumi, Sawabe, Kyoichi, Tomishige, Keiichi, Satsuma, Atsushi, Shimizu, Ken-ichi

“…Achieving complete substrate specificity through multiple interactions like an enzyme is one of the ultimate goals in catalytic studies. Herein, we demonstrate…”
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Hydration of nitriles to amides in water by SiO2-supported Ag catalysts promoted by adsorbed oxygen atoms by Shimizu, Ken-ichi, Imaiida, Naomichi, Sawabe, Kyoichi, Satsuma, Atsushi

“…[Display omitted] ► Ag particles partially covered with surface oxygen atoms as effective catalysts for hydration of nitriles to amides. ► TOF increases…”
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Density-Functional Theoretical Study on the Role of Lewis and Brønsted Acid Sites on CeO2(110) Surfaces for Nitrile Hydration by Sawabe, Kyoichi, Yoshikawa, Yukio, Satsuma, Atsushi

“…Hydration of cyanopyridine on CeO 2 (110) surfaces was studied using periodic DFT+U calculations. One of two adsorption modes of 2-cyanopyridine occurs with…”
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Enhanced CO Oxidation Activity of Ni@Ag Core–Shell Nanoparticles by Mahara, Yuji, Ishikawa, Hiroyuki, Ohyama, Junya, Sawabe, Kyoichi, Yamamoto, Yuta, Arai, Shigeo, Satsuma, Atsushi

“…Ni@Ag core–shell nanoparticles supported on SiO2 were prepared by a galvanic replacement reaction between Ni and Ag at a low temperature (213 K). The Ni@Ag…”
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A Theoretical Insight into Enhanced Catalytic Activity of Au by Multiple Twin Nanoparticles by Kyoichi Sawabe, Taiki Koketsu, Junya Ohyama, Atsushi Satsuma

“…Recently, it has been reported that the morphology of Au nanoparticles (NPs) affects the catalytic activity of CO oxidation; twin crystal NPs show higher…”
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Self-Regenerative Silver Nanocluster Catalyst for CO Oxidation by Shimizu, Ken-ichi, Sawabe, Kyoichi, Satsuma, Atsushi

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Reversible Multi-Complexation of CO2 to Alkaline Earth Metal Ion-Pair at 400 ppm and 298 K by Oda, Akira, Sawabe, Kyoichi, Satsuma, Atsushi

“…The efficient capture of low-pressure CO2 remains a significant challenge due to the lack of established multi-complexation of CO2 to active sites in…”
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Reversible Multi-Complexation of CO 2 to Alkaline Earth Metal Ion-Pair at 400 ppm and 298 K by Oda, Akira, Sawabe, Kyoichi, Satsuma, Atsushi

“…The efficient capture of low-pressure CO remains a significant challenge due to the lack of established multi-complexation of CO to active sites in microporous…”
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Trampoline motions in Xe–graphite(0 0 0 1) surface scattering by Watanabe, Yoshimasa, Yamaguchi, Hiroki, Hashinokuchi, Michihiro, Sawabe, Kyoichi, Maruyama, Shigeo, Matsumoto, Yoichiro, Shobatake, Kosuke

“…We have investigated Xe scattering from the graphite(0 0 0 1) surface at hyperthermal incident energies using a molecular beam-surface scattering technique and…”
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Unveiling Static and Dynamic Structures of Pd Clusters Influenced by Al2O3 Surfaces: DFT and AIMD Studies by Murata, Kazumasa, Oda, Akira, Satsuma, Atsushi, Sawabe, Kyoichi

“…Metal nanoparticles (MNPs) supported on oxides are used in various catalytic reactions, such as petrochemical processes and exhaust gas purification…”
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Unveiling Static and Dynamic Structures of Pd Clusters Influenced by Al 2 O 3 Surfaces: DFT and AIMD Studies by Murata, Kazumasa, Oda, Akira, Satsuma, Atsushi, Sawabe, Kyoichi

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Breaking the Structure–Activity Relationship in Toluene Hydrogenation Catalysis by Designing Heteroatom Ensembles Based on a Single-Atom Alloying Approach by Oda, Akira, Fujita, Takahisa, Yamamoto, Yuta, Sawabe, Kyoichi, Satsuma, Atsushi

“…Hydrogenation of toluene (TOL) to methylcyclohexane (MCH) is one of the hydrogen carrier systems desired for social integration. Supported Pt nanoparticle…”
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Spectroscopic Evidence of Efficient Generation of Dicopper Intermediate in Selective Catalytic Reduction of NO over Cu-Ion-Exchanged Zeolites by Oda, Akira, Shionoya, Hitomi, Hotta, Yuusuke, Takewaki, Takahiko, Sawabe, Kyoichi, Satsuma, Atsushi

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