TY - JOUR
T1 - Low-temperature oxidative coupling of methane using alkaline earth metal oxide-supported perovskites
AU - Lim, Seoyeon
AU - Choi, Jae Wook
AU - Jin Suh, Dong
AU - Lee, Ung
AU - Song, Kwang Ho
AU - Ha, Jeong Myeong
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Perovskite-supported alkaline-earth metal oxide catalysts were prepared for application in the oxidative coupling of methane (OCM). The selective production of C2+ compounds, including ethane, ethylene, acetylene, propane, and propylene, was observed at reaction temperatures < 700 °C. This lower reaction temperature was not achieved with pure perovskites but only with the combination of alkaline-earth metal oxides and perovskite supports. The formation of complex mixed oxides, such as Ba-Ca-Ti-Ox, Ba-Sr-Ti-Ox, and Ba2TiO4, was also observed for these catalysts. This contributed to the improved C2+ yield at the lower reaction temperature. The strong basicity, which contributes to the improved OCM activity, was also observed for these catalysts.
AB - Perovskite-supported alkaline-earth metal oxide catalysts were prepared for application in the oxidative coupling of methane (OCM). The selective production of C2+ compounds, including ethane, ethylene, acetylene, propane, and propylene, was observed at reaction temperatures < 700 °C. This lower reaction temperature was not achieved with pure perovskites but only with the combination of alkaline-earth metal oxides and perovskite supports. The formation of complex mixed oxides, such as Ba-Ca-Ti-Ox, Ba-Sr-Ti-Ox, and Ba2TiO4, was also observed for these catalysts. This contributed to the improved C2+ yield at the lower reaction temperature. The strong basicity, which contributes to the improved OCM activity, was also observed for these catalysts.
KW - Alkaline-earth metal oxide
KW - Barium oxide
KW - Low temperature
KW - Methane
KW - Oxidative coupling
KW - Perovskite
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U2 - 10.1016/j.cattod.2019.11.014
DO - 10.1016/j.cattod.2019.11.014
M3 - Article
AN - SCOPUS:85077332377
JO - Catalysis Today
JF - Catalysis Today
SN - 0920-5861
ER -