Template-free synthesis of sphere, rod and prism morphologies of CeO 2 oxidation catalysts

Yejun Guan; Emiel J.M. Hensen; Yan Liu; Haidong Zhang; Zhaochi Feng; Can Li

doi:10.1007/s10562-010-0349-5

Template-free synthesis of sphere, rod and prism morphologies of CeO ₂ oxidation catalysts

Yejun Guan^*
, Emiel J.M. Hensen
, Yan Liu
, Haidong Zhang
, Zhaochi Feng
, Can Li

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Ceria materials with sphere, rod, and prism morphologies were synthesized via the hydrolysis of solutions containing Ce(NO₃)₃ and urea under hydrothermal conditions. By carefully adjusting the synthesis conditions (salt concentration, temperature and synthesis time), spheres with a diameter of about 200 nm, rods of about 6 nm in width and 60 nm in length and prisms with an edge length of about 600 nm were synthesized. XRD and TEM indicate that the grain size of these samples is in the range of 7-10 nm after calcination at 450 °C. These ceria materials exhibit a higher catalytic activity in the oxidation of CO than conventionally prepared CeO₂.

Original language	English
Pages (from-to)	28-34
Number of pages	7
Journal	Catalysis Letters
Volume	137
Issue number	1-2
DOIs	https://doi.org/10.1007/s10562-010-0349-5
State	Published - Jun 2010
Externally published	Yes

Keywords

Carbon monoxide oxidation
Ceria
Hydrothermal synthesis
Morphology

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10.1007/s10562-010-0349-5

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title = "Template-free synthesis of sphere, rod and prism morphologies of CeO 2 oxidation catalysts",

abstract = "Ceria materials with sphere, rod, and prism morphologies were synthesized via the hydrolysis of solutions containing Ce(NO3)3 and urea under hydrothermal conditions. By carefully adjusting the synthesis conditions (salt concentration, temperature and synthesis time), spheres with a diameter of about 200 nm, rods of about 6 nm in width and 60 nm in length and prisms with an edge length of about 600 nm were synthesized. XRD and TEM indicate that the grain size of these samples is in the range of 7-10 nm after calcination at 450 °C. These ceria materials exhibit a higher catalytic activity in the oxidation of CO than conventionally prepared CeO2.",

keywords = "Carbon monoxide oxidation, Ceria, Hydrothermal synthesis, Morphology",

author = "Yejun Guan and Hensen, \{Emiel J.M.\} and Yan Liu and Haidong Zhang and Zhaochi Feng and Can Li",

year = "2010",

month = jun,

doi = "10.1007/s10562-010-0349-5",

language = "英语",

volume = "137",

pages = "28--34",

journal = "Catalysis Letters",

issn = "1011-372X",

publisher = "Kluwer Academic Publishers",

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TY - JOUR

T1 - Template-free synthesis of sphere, rod and prism morphologies of CeO 2 oxidation catalysts

AU - Guan, Yejun

AU - Hensen, Emiel J.M.

AU - Liu, Yan

AU - Zhang, Haidong

AU - Feng, Zhaochi

AU - Li, Can

PY - 2010/6

Y1 - 2010/6

N2 - Ceria materials with sphere, rod, and prism morphologies were synthesized via the hydrolysis of solutions containing Ce(NO3)3 and urea under hydrothermal conditions. By carefully adjusting the synthesis conditions (salt concentration, temperature and synthesis time), spheres with a diameter of about 200 nm, rods of about 6 nm in width and 60 nm in length and prisms with an edge length of about 600 nm were synthesized. XRD and TEM indicate that the grain size of these samples is in the range of 7-10 nm after calcination at 450 °C. These ceria materials exhibit a higher catalytic activity in the oxidation of CO than conventionally prepared CeO2.

AB - Ceria materials with sphere, rod, and prism morphologies were synthesized via the hydrolysis of solutions containing Ce(NO3)3 and urea under hydrothermal conditions. By carefully adjusting the synthesis conditions (salt concentration, temperature and synthesis time), spheres with a diameter of about 200 nm, rods of about 6 nm in width and 60 nm in length and prisms with an edge length of about 600 nm were synthesized. XRD and TEM indicate that the grain size of these samples is in the range of 7-10 nm after calcination at 450 °C. These ceria materials exhibit a higher catalytic activity in the oxidation of CO than conventionally prepared CeO2.

KW - Carbon monoxide oxidation

KW - Ceria

KW - Hydrothermal synthesis

KW - Morphology

UR - https://www.scopus.com/pages/publications/77952952058

U2 - 10.1007/s10562-010-0349-5

DO - 10.1007/s10562-010-0349-5

M3 - 文章

AN - SCOPUS:77952952058

SN - 1011-372X

VL - 137

SP - 28

EP - 34

JO - Catalysis Letters

JF - Catalysis Letters

IS - 1-2

ER -

Template-free synthesis of sphere, rod and prism morphologies of CeO ₂ oxidation catalysts

Abstract

Keywords

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