研究報告28 - 1 論文 - Original
バレルスパッタリング法で調製したRu/α-Al203によるC02の水素化反応
Study on the Hydrogenation of C02 over α-Al203
Supported Ru Nanoparicles Prepared by the Barrel-Sputtering Method
田口 明、谷澤昌昭、赤丸悟士、阿部孝之
富山大学水素同位体科学研究センター、〒930-8555 富山市五福3190
A.Taguchi, M.yTanizawa, S.Akamaru, T.Abe
Hydrogen Isotope Research Center, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
Abstract
Catalytic hydrogenation of Cyo2over α-Al2O3 supported Ru nanoparticles
(Ru/Al2O3)prepared by"barrel-sputtering and conventional
"wet impregnation" methods was investigated.
Highly dispersed Ru nanoparticles were obtained by using the barrel-sputtering method.
The mean particle diameter of Ru nanoparticles increased from ca. 5.5 to ca. 13.2 nm with an increase
in the amount of Ru loaded. On the other hand, Ru particles were agglomerated when the impregnation method was
used.
Mean particle diameter of resultant Ru particles was 13.4 nm. Both catalysts showed selective methane
production by
hydrogenation of CO2, and Ru/Al2O3 prepared by the barrel-sputtering method
exhibited higher activity
than that of Ru/Al2O3 prepared by the wet impregnation method.
The turnover number (TON) of methane formation linearly decreased with an increase in the mean diameter of Ru
nanoparticles.