TY - JOUR
T1 - Effect of strong metal-oxide interaction on low-temperature ethanol reforming over Fe-promoted Rh/SiO2 catalyst
AU - Ito, Shin ichi
AU - Kameoka, Satoshi
N1 - Funding Information:
The authors greatly appreciate Prof. Takahiro Kondo and Prof. Junji Nakamura of the University of Tsukuba for their kind support for this study. This study was supported by a Grant-in-Aid for Scientific Research No. 15H00294 .
Funding Information:
The authors greatly appreciate Prof. Takahiro Kondo and Prof. Junji Nakamura of the University of Tsukuba for their kind support for this study. This study was supported by a Grant-in-Aid for Scientific Research No. 15H00294.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/5/5
Y1 - 2021/5/5
N2 - An Fe-promoted Rh/SiO2 catalyst (Fe + Rh/SiO2) was investigated in terms of the strong metal-oxide interaction (SMOI) between Rh metal and Fe oxide (FeOx) and its application to low-temperature ethanol reforming. Fe + Rh/SiO2 was prepared by a conventional co-impregnation method followed by high-temperature calcination in air at 973 K. For low-temperature ethanol reforming, Fe + Rh/SiO2 was subjected to low-temperature reduction with hydrogen at 573 K, and exhibited enhanced dehydrogenation of ethanol. The generation of carbon monoxide and methane byproducts was suppressed by the SMOI between Rh and FeOx, which inhibited acetaldehyde decomposition. Moreover, high-temperature reduction of Fe + Rh/SiO2 with hydrogen at 773 K (HTR) significantly enhanced steam reforming of ethanol due to interaction between the Fe-Rh alloy and FeOx. These results will lead to efficient utilization of rare and active precious metals by the addition of cheap iron oxide, and promise efficient production of hydrogen and acetaldehyde as basic chemicals from bioethanol.
AB - An Fe-promoted Rh/SiO2 catalyst (Fe + Rh/SiO2) was investigated in terms of the strong metal-oxide interaction (SMOI) between Rh metal and Fe oxide (FeOx) and its application to low-temperature ethanol reforming. Fe + Rh/SiO2 was prepared by a conventional co-impregnation method followed by high-temperature calcination in air at 973 K. For low-temperature ethanol reforming, Fe + Rh/SiO2 was subjected to low-temperature reduction with hydrogen at 573 K, and exhibited enhanced dehydrogenation of ethanol. The generation of carbon monoxide and methane byproducts was suppressed by the SMOI between Rh and FeOx, which inhibited acetaldehyde decomposition. Moreover, high-temperature reduction of Fe + Rh/SiO2 with hydrogen at 773 K (HTR) significantly enhanced steam reforming of ethanol due to interaction between the Fe-Rh alloy and FeOx. These results will lead to efficient utilization of rare and active precious metals by the addition of cheap iron oxide, and promise efficient production of hydrogen and acetaldehyde as basic chemicals from bioethanol.
KW - Acetaldehyde production
KW - Bioethanol
KW - Ethanol reforming
KW - Hydrogen production
KW - SMOI
KW - SMSI
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U2 - 10.1016/j.apcata.2021.118113
DO - 10.1016/j.apcata.2021.118113
M3 - Article
AN - SCOPUS:85103327033
SN - 0926-860X
VL - 617
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
M1 - 118113
ER -
