Development of Highly Active CO2 Methanation Catalyst Based on Low Crystalline Ruthenium Nanolayer

• Project/Area Number: 18K04835
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 27030:Catalyst and resource chemical process-related
• Research Institution: Nagoya University (2021); Kyoto University (2018-2020)
• Principal Investigator: Sato Katsutoshi 名古屋大学, 工学研究科, 特任准教授 (30586607)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: CO2資源化 / 貴金属触媒 / 希土類酸化物 / 複合酸化物 / 水素化 / カーボンニュートラル / 再生可能エネルギー / ルテニウム / 二酸化炭素 / 資源化 / 希土類 / 貴金属ナノレイヤー / メタン化 / サバティエ反応 / メタン / 水素

Outline of Final Research Achievements

We focused on the methane conversion reaction for CO2 resources and developed a new highly active catalyst based on "low-crystalline Ru nanolayers". The low-temperature preparation process suppressed excessive crystallization of the metal and oxide and further improved the catalytic activity.

Academic Significance and Societal Importance of the Research Achievements

再生可能エネルギ―由来の水素等を利用したCO2の資源化に注目が集まっており，そのコア技術として触媒は重要な位置を占めている．本研究では，低結晶状態の金属及び酸化物が発現する化学的特性を利用することでCO2を活性化，転換する新たな活性点構造を提示することに成功した．本研究のさらなる進展によって実用的なCO2資源化プロセスの実現が期待できる．

Research Products

• [Journal Article] Pr2O3 Supported Nano‐layered Ruthenium Catalyzed Acceptorless Dehydrogenative Synthesis of 2‐Substituted Quinolines and 1,8‐Naphthyridines from 2‐Aminoaryl Alcohols and Ketones (2020)
  • Author(s): Nagaoka Katsutoshi、Chaudhari Chandan、Sato Katsutoshi、Ogura Yuta、Miayahara Shin-ichiro
  • Journal Title: ChemCatChem Volume: in-press Issue: 8 Pages: 2198-2198
  • DOI: 10.1002/cctc.201902311
  • Peer Reviewed
• [Journal Article] Surface Dynamics for Creating Highly Active Ru Sites for Ammonia Synthesis: Accumulation of a Low-Crystalline, Oxygen-Deficient Nanofraction (2020)
  • Author(s): Sato Katsutoshi、Miyahara Shin-ichiro、Ogura Yuta、Tsujimaru Kotoko、Wada Yuichiro、Toriyama Takaaki、Yamamoto Tomokazu、Matsumura Syo、Nagaoka Katsutoshi
  • Journal Title: ACS Sustainable Chemistry & Engineering Volume: 8 Issue: 7 Pages: 2726-2734
  • DOI: 10.1021/acssuschemeng.9b06299
• [Journal Article] Kinetics of ammonia synthesis over Ru/Pr2O3 (2019)
  • Author(s): Imamura Kazuya、Miyahara Shin-ichiro、Kawano Yukiko、Sato Katsutoshi、Nakasaka Yuta、Nagaoka Katsutoshi
  • Journal Title: Journal of the Taiwan Institute of Chemical Engineers Volume: 105 Pages: 50-56
  • DOI: 10.1016/j.jtice.2019.10.006
  • Peer Reviewed
• [Journal Article] Efficient ammonia synthesis over a Ru/La0.5Ce0.5O1.75 catalyst pre-reduced at high temperature (2018)
  • Author(s): Yuta Ogura, Katsutoshi Sato, Shin-ichiro Miyahara, Yukiko Kawano, Takaaki Toriyama, Tomokazu Yamamoto, Syo Matsumura, Saburo Hosokawa, and Katsutoshi Nagaoka
  • Journal Title: Chemical Science Volume: 9 Issue: 8 Pages: 2230-2237
  • DOI: 10.1039/c7sc05343f
  • Peer Reviewed / Open Access
• [Journal Article] Ru/La0.5Pr0.5O1.75 Catalyst for Low-Temperature Ammonia Synthesis (2018)
  • Author(s): Ogura Yuta、Tsujimaru Kotoko、Sato Katsutoshi、Miyahara Shin-ichiro、Toriyama Takaaki、Yamamoto Tomokazu、Matsumura Syo、Nagaoka Katsutoshi
  • Journal Title: ACS Sustainable Chemistry & Engineering Volume: 6 Issue: 12 Pages: 17258-17266
  • DOI: 10.1021/acssuschemeng.8b04683
  • Peer Reviewed
• [Journal Article] Influence of the Crystal Structure of Titanium Oxide on the Catalytic Activity of Rh/TiO2 in Steam Reforming of Propane at Low Temperature (2018)
  • Author(s): Yu Lin、Sato Katsutoshi、Toriyama Takaaki、Yamamoto Tomokazu、Matsumura Syo、Nagaoka Katsutoshi
  • Journal Title: Chemistry - A European Journal Volume: 24 Issue: 35 Pages: 8742-8746
  • DOI: 10.1002/chem.201800936
  • Peer Reviewed
• [Presentation] 二酸化炭素のメタン化のためのRu担持ZrO2 触媒の開発と低温域における活性発現機構の検討 (2022)
  • Author(s): 樋口仁美，佐藤勝俊，山田博史，永岡勝俊
  • Organizer: 第129回触媒討論会
• [Presentation] ZrO2 oxide supported Ru catalyst for CO2 methanation at low temperature (2022)
  • Author(s): Katsutoshi SATO, Hitomi HIGHCHI, Katsutoshi NAGAOKA
  • Organizer: TOCAT9
  • Int'l Joint Research
• [Presentation] Development of Cerium-Zirconium Composite Oxide Supported Ruthenium Catalyst for CO2 Methanation (2021)
  • Author(s): Katsutoshi Sato, Taichi Yamaguchi, Katsutoshi Nagaoka
  • Organizer: 2021 International Chemical Congress of Pacific Basin Societies
  • Int'l Joint Research
• [Presentation] 二酸化炭素のメタン化のための複合希土類酸化物担持触媒の開発(２) 低温調製・活性化処理の効果 (2021)
  • Author(s): 樋口仁美，佐藤勝俊，山田博史，永岡勝俊
  • Organizer: 第41回水素エネルギー協会大会
• [Presentation] 水素の高効率利用のための貴金属複合触媒の開発とそのキャラクタリゼーション (2020)
  • Author(s): 佐藤勝俊
  • Organizer: 水素エネルギー協会第 161 回定例研究会
  • Invited
• [Presentation] 二酸化炭素のメタン化のための複合希土 類酸化物担持触媒の開発 (2019)
  • Author(s): 佐藤勝俊
  • Organizer: 第39回水素エネルギー協会大会
• [Presentation] CO2 conversion to CH4 over cerium - zirconium composite oxide supported ruthenium catalys (2019)
  • Author(s): Katsutoshi Sato
  • Organizer: APCAT-8
  • Int'l Joint Research
• [Presentation] 希土類酸化物表面の反応性を利用した特殊構造の構築とキャラクタリゼーション (2019)
  • Author(s): 佐藤勝俊
  • Organizer: 2019 年度ナノ構造触媒研究会講演会
  • Invited