Faculty Profiles - NAGAOKA Katsutoshi

Papers - NAGAOKA Katsutoshi

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Realization of Ideal Ba Promoter State by Simultaneous Incorporation with Co into Carbon‐protective Framework for Ammonia Synthesis Catalyst Reviewed

K. Kanishka, H. De Silva, Katsutoshi Sato, Takahiro Naito, Takaaki Toriyama, Tomokazu Yamamoto, Ryotaro Aso, Yasukazu Murakami, Pradeep R. Varadwaj, Ryoji Asahi, Koji Inazu, Katsutoshi Nagaoka

Advanced Energy Materials Vol. 15 page： 2404030 2025

Design of Alkaline Earth‐Doped Co/MgO Catalysts for Ammonia Decomposition Reviewed Open Access

Sachika Hayashi, Yo Takeuchi, Takahiro Naito, K. Kanishka H. De Silva, Katsutoshi Sato, Takaaki Toriyama, Tomokazu Yamamoto, Yasukazu Murakami, Katsutoshi Nagaoka

ChemSusChem Vol. 19 ( 4 ) page： e202501801 2026.2

Activation of CO2 and NH3 at interface between Ni and Mg–Al mixed oxide for CH4 synthesis Reviewed

Yuji Ueda, Katsutoshi Nagaoka, Katsutoshi Sato

Catalysis Science & Technology Vol. 16 ( 4 ) page： 1207 - 1219 2026.2

Methane Synthesis from CO 2 and Ammonia over Supported Ni Catalyst via Isocyanate-Mediated Mechanism: Toward Carbon-Neutral Fuel Production Reviewed Open Access

Yuji Ueda, Katsutoshi Nagaoka, Katsutoshi Sato

JACS Au Vol. 5 ( 12 ) page： 6112 - 6126 2025.12

Effect of Potassium Doping on the Surface Structure and Ammonia Synthesis Activity of Co/MgO Reviewed

Tomoko Shibata, Kohei Era, Katsutoshi Sato, Shin-ichiro Miyahara, Takahiro Naito, K. Kanishka H. De Silva, Hiroshi Yamada, Takaaki Toriyama, Takehiro Tamaoka, Tomokazu Yamamoto, Yasukazu Murakami, Koji Inazu, and Katsutoshi Nagaoka

ACS OMega Vol. 10 page： 53113 2025.11

Comprehensive kinetic analysis of ammonia synthesis over a Co/BaO/MgO catalyst under milder conditions: Integral reactor modeling via Langmuir–Hinshelwood mechanism Reviewed Open Access

Mostafa El-Shafie, Tomoyuki Yajima, Takahiro Naito, Katsutoshi Sato, Shoichi Tsuda, Koji Inazu, Katsutoshi Nagaoka, Yoshiaki Kawajiri

Chemical Engineering Journal Vol. 523 page： 168922 - 168922 2025.11

Efficient metallic Ni as a bifunctional electrocatalyst for integrating continuous PET plastic upcycling with hydrogen production Reviewed International coauthorship

Xin Li, Jiyi Sun, Huijing Ma, Xia Long, Tianqi Li, Yuto Shimoyama, Takahiro Naito, Katsutoshi Sato, Hiroshi Yamada, Katsutoshi Nagaoka, Yixin Zhao, Xufang Qian

Applied Catalysis B: Environment and Energy Vol. 371 2025.8

Design of Amorphous Carbon-Coated Cobalt Nanoparticles on a Hybrid Composite: Tuning the Stable Co Active Phase for Efficient Production of Liquid Fuels via Fischer–Tropsch Synthesis Reviewed

M. S. Kutubi, K. Sato, D. S. R. Rocabado, M. Aizawa, T. Ishimoto, S. Inagaki, Y. Kubota, T. Toriyama, T. Yamamoto, Y. Murakami, K. Nagaoka

ACS Catalysis Vol. 15 page： 11573 - 11586 2025.7

Surface Steric Effect in Heterogeneous Catalysis as the Origin of the High Activity Induced by Strong Metal–Support Interactions Reviewed

Valadez Huerta, G. Hisama, K. Sato, K. Nagaoka, K. Koyama, M.

iScience Vol. 28 page： 112470 2025.5

Decoration of dual cocatalysts on ultra-thin carbon nitride for efficient H2O2 photosynthesis Invited Reviewed International coauthorship

Yuanshuo Peng, Haitao Wang, Ronghua Li, Na Teng, Liyong Ding, Hao Wu, Takuya Sakurai, Shaopeng Liang, Yuto Shimoyama, Katsutoshi Sato, Katsutoshi Nagaoka, Yanbo Li and Qian Wang

Journal of Materials Chemistry A 2025

Synthesis of supported immiscible nanoalloy catalysts via gas-switching reduction in the impregnation method Reviewed

Y. Nishida, T. Toriyama, T. Yamamoto, K. Sato, K. Nagaoka, M. Haneda

Catal. Sci. Technol. Vol. 15 page： 6372 2025

Atomic behaviors in PdRu solid-solution nanoparticles on CeO2-ZrO2 support for the three-way catalytic reaction Reviewed Open Access

Okkyun Seo, Akhil Tayal, Jaemyung Kim, Kohei Kusada, Tomokazu Yamamoto, Jiayi Tang, Satoshi Hiroi, Chulho Song, Katsutoshi Sato, Katsutoshi Nagaoka, Masaaki Haneda, Kazuo Kato, Syo Matsumura, Hiroshi Kitagawa, Osami Sakata

Materials Today Catalysis Vol. 7 page： 100078 - 100078 2024.12

Significant low-temperature activity of tetragonal type ZrO2-supported Ru catalysts for CO2 methanation Reviewed

Katsutoshi Sato, Hitomi Higuchi, Katsutoshi Nagaoka

Chemistry Letters Vol. 53 ( 10 ) 2024.10

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Oxford University Press (OUP)

Abstract

Conversion of CO2 with H2 to CH4 is a potential route for the utilization of CO2. Because CO2 methanation is an exothermic reaction, the equilibrium yield decreases with increasing temperature. A catalyst that exhibits high activity at low temperatures is thus highly desirable. We report here that a tetragonal-type ZrO2 supported Ru catalyst prepared by low-temperature calcination showed significant low-temperature activity for CO2 methanation. We surmise that an intermediate formate species formed over the tetragonal-type ZrO2 and enhanced the catalytic activity.

DOI： 10.1093/chemle/upae178

Web of Science

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Rapid start-up of carbon-free H2 production by ammonia oxidative decomposition over Co/Ce0.5Zr0.5O2 with microwave irradiation Reviewed

Takahiro Matsunaga, Sachika Hayashi, Hiroshi Yamada, Katsutoshi Sato, Katsutoshi Nagaoka

iScience Vol. 27 ( 8 ) page： 110452 - 110452 2024.8

Barium-doped Iron Nanoparticles supported on MgO as an Efficient Catalyst for Ammonia Synthesis under Mild Reaction Conditions Reviewed

Kohei Era, Katsutoshi Sato, Shin-ichiro Miyahara, Takahiro Naito, Kanishka De Silva, Saeid Akrami, Hiroshi Yamada, Takaaki Toriyama, Takehiro Tamaoka, Tomokazu Yamamoto, Yasukazu Murakami, Koji Inazu, Katsutoshi Nagaoka

Sustainable Energy and Fuels Vol. 8 ( 12 ) page： 2593 - 2600 2024.5

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Royal Society of Chemistry (RSC)

To realize a carbon-neutral society, developing highly active and inexpensive catalysts for ammonia (NH3) production working at moderate conditions (<400 °C, <10 MPa) using hydrogen fabricated from the electrolysis of...

DOI： 10.1039/d4se00411f

Scopus

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Effects of the Topological Structure of Different Cu-Zeolites on the Relationship between Soot and NOx Removal on NH3–SCRF Reviewed

Zhimu Ye, Pengcheng Zhao, Xincheng Tang, Takeshi Hagio, Katsutoshi Sato, Katsutoshi Nagaoka, Xinling Li

Energy & Fuels Vol. 38 page： 2212 - 2223 2024.1

Catalytic Behavior of K‐doped Fe/MgO Catalysts for Ammonia Synthesis Under Mild Reaction Conditions Reviewed Open Access

Kohei Era, Katsutoshi Sato, Shin‐ichiro Miyahara, Takahiro Naito, Kanishka De Silva, Saeid Akrami, Hiroshi Yamada, Takaaki Toriyama, Tomokazu Yamamoto, Yasukazu Murakami, Ken‐ichi Aika, Koji Inazu, Katsutoshi Nagaoka

ChemSusChem Vol. 16 ( 22 ) page： e202300942 2023.11

Language：English Publishing type：Research paper (scientific journal) Publisher：Wiley

Abstract

An important part of realizing a carbon‐neutral society using ammonia will be the development of an inexpensive yet efficient catalyst for ammonia synthesis under mild reaction conditions (<400 °C, <10 MPa). Here, we report Fe/K(3)/MgO, fabricated via an impregnation method, as a highly active catalyst for ammonia synthesis under mild reaction conditions (350 °C, 1.0 MPa). At the mentioned conditions, the activity of Fe/K(3)/MgO (17.5 mmol h−1 gcat−1) was greater than that of a commercial fused iron catalyst (8.6 mmol h−1 gcat−1) currently used in the Haber‐Bosch process. K doping was found to increase the ratio of Fe0 on the surface and turnover frequency of Fe in our Fe/K(3)/MgO catalyst. In addition, increasing the pressure to 3.0 MPa at the same temperature led to a significant improvement of the ammonia synthesis rate to 29.6 mmol h−1 gcat−1, which was higher than that of two more expensive, benchmark Ru‐based catalysts, which are also potential alternative catalysts. A kinetics analysis revealed that the addition of K enhanced the ammonia synthesis activity at ≥300 °C by changing the main adsorbed species from NH to N which can accelerate dissociative adsorption of nitrogen as the rate limiting step in ammonia synthesis.

DOI： 10.1002/cssc.202300942

The Effect of Ru Precursor and Support on the Hydrogenation of Aromatic Aldehydes/Ketones to Alcohols Reviewed Open Access

Chandan Chaudhari, Katsutoshi Sato, Shin-ichiro Miyahara, Tomokazu Yamamoto, Takaaki Toriyama, Syo Matsumura, Kohei Kusuda, Hiroshi Kitagawa, Katsutoshi Nagaoka

CHEMCATCHEM Vol. 14 ( 16 ) 2022.8

Language：English Publishing type：Research paper (scientific journal) Publisher：WILEY-V C H VERLAG GMBH

Supported Ru catalysts were prepared by using different Ru precursors and examined for the hydrogenation of benzaldehyde to CHM. The catalyst prepared from Ru-3(CO)(12) precursor and HT support exhibited high yield of CHM. Moderate acidic and basic nature of HT was favourable to control the selectivity for CHM. The physicochemical properties analysis revealed that highly dispersed Ru nanoparticles were effective for the hydrogenation of benzaldehyde. Ru-CO/HT catalyst was tolerant to different functional groups and was stable until 7(th) cycle of recycle study.

DOI： 10.1002/cctc.202200241

Co Nanoparticle Catalysts Encapsulated by BaO–La2O3 Nanofractions for Efficient Ammonia Synthesis Under Mild Reaction Conditions Reviewed Open Access

Shin-ichiro Miyahara, Katsutoshi Sato, Kotoko Tsujimaru, Yuichiro Wada, Yuta Ogura, Takaaki Toriyama, Tomokazu Yamamoto, Syo Matsumura, Koji Inazu, Katsutoshi Nagaoka

ACS Omega Vol. 7 ( 28 ) page： 24452 - 24460 2022.7

Operando Spectroscopic Study of the Dynamics of Ru Catalyst during Preferential Oxidation of CO and the Prevention of Ammonia Poisoning by Pt Reviewed Open Access

Katsutoshi Sato, Shuhei Zaitsu, Godai Kitayama, Sho Yagi, Yuto Kayada, Yoshihide Nishida, Yuichiro Wada, Katsutoshi Nagaoka

JACS Au Vol. 2 ( 7 ) page： 1627 - 1637 2022.5

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Papers - NAGAOKA Katsutoshi