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Shinta Miyazaki, Zirui Li, Zen Maeno, Takashi Toyao, Masahiro Ito, Yasushi Nakajima, Ken-ichi Shimizu, Operando Ce K-edge XANES Study of Low-loading Ni/CeO2 in Chemical Looping Dry Reforming of Methane, Chemistry Letters, Volume 51, Issue 9, September 2022, Pages 914–918, https://doi.org/10.1246/cl.220288
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Abstract
In this study, operando Ce K-edge XANES measurements of CeO2-supported Ni (Ni/CeO2) catalysts for chemical looping dry reforming of methane (CLDRM) were performed. Low-loading Ni/CeO2 was effective for selectively promoting the partial oxidation of CH4 and suppressing coke deposition. Operando XANES measurements confirmed the redox state of Ce oxide in CLDRM and revealed that the reoxidation of reduced Ce oxide during CO2 reduction was faster than the reduction of Ce oxide during CH4 oxidation.