Cu/CeO 2  Catalyst for Water‐Gas Shift Reaction: Effect of CeO 2  Pretreatment | Zendy

Chen Chongqi | Zendy; Zhan Yingying | Zendy; Zhou Jianke | Zendy; Li Dalin | Zendy; Zhang Yanjie | Zendy; Lin Xingyi | Zendy; Jiang Lilong | Zendy; Zheng Qi | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Cu/CeO 2 Catalyst for Water‐Gas Shift Reaction: Effect of CeO 2 Pretreatment

Author(s) -

Chen Chongqi,

Zhan Yingying,

Zhou Jianke,

Li Dalin,

Zhang Yanjie,

Lin Xingyi,

Jiang Lilong,

Zheng Qi

Publication year - 2018

Publication title -

chemphyschem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.016

H-Index - 140

eISSN - 1439-7641

pISSN - 1439-4235

DOI - 10.1002/cphc.201800122

Subject(s) - catalysis , physisorption , desorption , stoichiometry , raman spectroscopy , water gas shift reaction , oxygen , transition metal , thermal desorption spectroscopy , inductively coupled plasma , oxygen storage , chemistry , inorganic chemistry , temperature programmed reduction , sulfidation , chemical engineering , analytical chemistry (journal) , materials science , adsorption , plasma , biochemistry , physics , organic chemistry , quantum mechanics , chromatography , optics , engineering

CuO/CeO 2 is a kind of promising catalysts for the water‐gas shift (WGS) reaction. Efforts were put in to improve its performance through modification of CeO 2 support. In this study, portions of CeO 2 prepared by a co‐precipitation method were separately annealed at 300 °C in air, under vacuum and with H 2 , and were used as supports for the fabrication of CuO/CeO 2 catalysts. The physicochemical properties of the catalysts were characterized by X‐ray diffraction, N 2 ‐physisorption, inductively coupled plasma, Raman spectroscopy, CO 2 temperature‐programmed desorption, and H 2 temperature‐programmed reduction techniques. The relation between catalytic performances and physicochemical properties of the CuO/CeO 2 catalysts were discussed. Among the three catalysts, the one with CuO supported on H 2 ‐reduced CeO 2 shows the highest catalytic activity, mainly due to strong CuO‐CeO 2 synergetic interaction and high concentration of Frenkel‐type oxygen vacancies. The superior catalytic activities can also be attributed to the Cu 0 crystals of small size and the oxygen vacancies in non‐stoichiometric CeO 2‐ x .

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research