Cerium phosphate-supported Au catalysts for CO oxidation

Yulin Wang; Huan Liu; Zhen Ma

doi:10.1016/j.cjche.2017.08.008

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Cerium phosphate-supported Au catalysts for CO oxidation

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Cerium phosphate-supported Au catalysts for CO oxidation
- Chinese Journal of Chemical Engineering Vol. 26, Issue 10, Pages: 2055-2063(2018)
- Affiliations：
  
  1. Shanghai Key Laboratory of Atmospheric Particle Pollution & Prevention,LAP
  2. Department of Environmental Science & Engineering, Fudan University,Shanghai,China,200433
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.08.008
  CLC：
- Published：2018
- Accepted：
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Yulin Wang, Huan Liu, Zhen Ma. Cerium phosphate-supported Au catalysts for CO oxidation[J]. Chin.J.Chem.Eng., 2018, 26(10): 2055-2063.
DOI：

Yulin Wang, Huan Liu, Zhen Ma. Cerium phosphate-supported Au catalysts for CO oxidation[J]. Chin.J.Chem.Eng., 2018, 26(10): 2055-2063. DOI： 10.1016/j.cjche.2017.08.008.

摘要

Abstract

LaPO

and hydroxyapatite (Ca

(PO

)

(OH)

) are typical metal phosphates recently found to be useful for making supported metal or metal oxide catalysts

but CePO

(also belonging to the metal phosphate family) has been rarely used to make supported catalysts. It would be interesting to develop CePO

-supported catalysts and explore their catalytic applications. Herein

hexagonal CePO

nanorods (denoted as CePO

-H)

hexagonal CePO

nanowires (CePO

-HNW)

monoclinic CePO

nanoparticles (CePO

-M)

and monoclinic CePO

nanowires (CePO

-MNW) prepared by different methods were used to support gold via deposition-precipitation with urea (DPU). The gold contents of these catalysts were all around 1 wt%. The catalytic activities of these Au/CePO

catalysts in CO oxidation were found to follow the sequence of Au/CePO

-MNW Au/CePO

-HNW Au/CePO

-M Au/CePO

-H. These catalysts were characterized by inductively coupled plasma-optical emission spectroscopy (ICP-OES)

adsorption-desorption

X-ray dif

fraction (XRD)

transmission electron microscopy (TEM)

X-ray photoelectron spectroscopy (XPS)

oxygen temperature-programmed desorption (O

-TPD)

and CO

temperature-programmed desorption (CO

-TPD) to find possible correlations between the physicochemical properties and catalytic activities of these catalysts.

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