TY - JOUR
T1 - Ru nanoparticles supported on amorphous ZrO2for CO2methanation
AU - Nagase, Hironori
AU - Naito, Rei
AU - Tada, Shohei
AU - Kikuchi, Ryuji
AU - Fujiwara, Kakeru
AU - Nishijima, Masahiko
AU - Honma, Tetsuo
N1 - Funding Information:
This work was supported financially by New Energy and Industrial Development Organization (NEDO), Japan, Japan Society for the Promotion of Science (JSPS) KAKENHI grants 18K04838, Japan, and Leading Initiative for Excellent Young Researchers (LEADER) of the Ministry of Education, Culture, Sports, Science and Technology, Japan (No. 1039506). Dr. Kenta Iyoki, The University of Tokyo, helped with N2adsorption measurements. Prof. Shigeo Satokawa, Seikei University, helped with the pretreatment of XAS samples and XRF measurements. TEM observation and XPS measurements were conducted at Advanced Characterization Nanotechnology Platform of the University of Tokyo, supported by the "Nanotechnology Platform" of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. STEM observation was carried out at the Tohoku University Advanced Characterization Nanotechnology Platform in the Nanotechnology platform project sponsored by MEXT, Japan. The synchrotron radiation experiments were performed at the BL14B2 of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI, Proposal No. 2018B1788).
Funding Information:
This work was supported financially by New Energy and Industrial Development Organization (NEDO), Japan, Japan Society for the Promotion of Science (JSPS) KAKENHI grants 18K04838, Japan, and Leading Initiative for Excellent Young Researchers (LEADER) of the Ministry of Education, Culture, Sports, Science and Technology, Japan (No. 1039506). Dr. Kenta Iyoki, The University of Tokyo, helped with N2 adsorption measurements. Prof. Shigeo Satokawa, Seikei University, helped with the pretreatment of XAS samples and XRF measurements. TEM observation and XPS measurements were conducted at Advanced Characterization Nanotechnology Platform of the University of Tokyo, supported by the “Nanotechnology Platform” of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. STEM observation was carried out at the Tohoku University Advanced Characterization Nanotechnology Platform in the Nanotechnology platform project sponsored by MEXT, Japan. The synchrotron radiation experiments were performed at the BL14B2 of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI, Proposal No. 2018B1788).
Publisher Copyright:
© 2020 The Royal Society of Chemistry.
PY - 2020/7/21
Y1 - 2020/7/21
N2 - The influence of support materials and preparation methods on CO2 methanation activity was investigated using Ru nanoparticles supported on amorphous ZrO2 (am-ZrO2), crystalline ZrO2 (cr-ZrO2), and SiO2. Among them, Ru/am-ZrO2 showed high CO2 methanation activity. Of note, Ru/am-ZrO2 prepared by a selective deposition method was superior to that prepared by a wet impregnation method. This is because the Ru nanoparticles were highly dispersed when prepared by the selective deposition method, as evidenced by XPS. Interestingly, when NaOH solution was used as a pH adjuster for the selective deposition method, Ru/am-ZrO2 catalysts activated the formate species (one of the important reaction intermediates of CO2 methanation), leading to high CO2 conversion (73%, 250 °C).
AB - The influence of support materials and preparation methods on CO2 methanation activity was investigated using Ru nanoparticles supported on amorphous ZrO2 (am-ZrO2), crystalline ZrO2 (cr-ZrO2), and SiO2. Among them, Ru/am-ZrO2 showed high CO2 methanation activity. Of note, Ru/am-ZrO2 prepared by a selective deposition method was superior to that prepared by a wet impregnation method. This is because the Ru nanoparticles were highly dispersed when prepared by the selective deposition method, as evidenced by XPS. Interestingly, when NaOH solution was used as a pH adjuster for the selective deposition method, Ru/am-ZrO2 catalysts activated the formate species (one of the important reaction intermediates of CO2 methanation), leading to high CO2 conversion (73%, 250 °C).
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U2 - 10.1039/d0cy00233j
DO - 10.1039/d0cy00233j
M3 - Article
AN - SCOPUS:85089105837
VL - 10
SP - 4522
EP - 4531
JO - Catalysis Science and Technology
JF - Catalysis Science and Technology
SN - 2044-4753
IS - 14
ER -