Methane Combustion Over Ni/Ce x Zr 1–x O 2  Catalysts: Impact of Ceria/Zirconia Ratio | Zendy

Chen Junjie | Zendy; Carlson Benjamin D. | Zendy; Toops Todd J. | Zendy; Li Zhenglong | Zendy; Lance Michael J. | Zendy; Karakalos Stavros G. | Zendy; Choi JaeSoon | Zendy; Kyriakidou Eleni A. | Zendy

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Methane Combustion Over Ni/Ce x Zr 1–x O 2 Catalysts: Impact of Ceria/Zirconia Ratio

Author(s) -

Chen Junjie,

Carlson Benjamin D.,

Toops Todd J.,

Li Zhenglong,

Lance Michael J.,

Karakalos Stavros G.,

Choi JaeSoon,

Kyriakidou Eleni A.

Publication year - 2020

Publication title -

chemcatchem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.497

H-Index - 106

eISSN - 1867-3899

pISSN - 1867-3880

DOI - 10.1002/cctc.202000947

Subject(s) - catalysis , materials science , nickel , cubic zirconia , zirconium , doping , oxygen , nuclear chemistry , inorganic chemistry , chemistry , metallurgy , ceramic , biochemistry , optoelectronics , organic chemistry

A series of Ce x Zr 1–x O 2 (x=1, 0.83, 0.17, 0) supports and 2 wt.% Ni/Ce x Zr 1–x O 2 catalysts were synthesized and evaluated for CH 4 oxidation. The Ce x Zr 1–x O 2 supports showed moderate activity (T 50 =519‐638 °C) with CO by‐product formation. Nickel incorporation onto Ce x Zr 1–x O 2 lowered the T 50 to 438–477 °C and eliminated the formation of CO. The results indicated that moderate Zr doping improved the support oxygen storage capacity (OSC) and reducibility of the catalyst at low temperatures (H 2 ‐TPR) leading to an enhanced CH 4 combustion turnover frequency: Ni/ZrO 2

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