Synthesis of flowerlike ceria–zirconia solid solution for promoting dry reforming of methane

P. H. Tu, M. Sakamoto, K. Sasaki, Y. Shiratori

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

Using a newly developed two-step hydrothermal process, flowerlike Ce0.5Zr0.5O2 with an oxygen storage capacity (OSC) of 536 μmol O2 g−1, almost twice as high as that of pure flowerlike CeO2 (284 μmol O2 g−1), can be synthesized. The synthesized ceria-based oxide supports loaded with Ni are dispersed in a ceramic fiber network to form paper-structured catalysts (PSCs). Among the prepared PSCs, the PSC with the flowerlike Ce0.5Zr0.5O2 exhibits the highest catalytic performance for dry reforming of methane (DRM) at 750 °C with the initial methane conversion of 88.4%, degradation rate of 0.1% h−1 and amount of deposited carbon of 0.04 g per gram catalyst, whereas for the Ce0.5Zr0.5O2 synthesized by the one-step hydrothermal process, the values are 83.7%, 0.62% h−1 and 0.07 g per gram catalyst, respectively. This is attributed to the Ni anti-sintering on the petals of the flowerlike structure and the coking tolerance resulting from the high OSC.

本文言語英語
ジャーナルInternational Journal of Hydrogen Energy
DOI
出版ステータス印刷中 - 2021

!!!All Science Journal Classification (ASJC) codes

  • 再生可能エネルギー、持続可能性、環境
  • 燃料技術
  • 凝縮系物理学
  • エネルギー工学および電力技術

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