Synthesis of porous α-Fe2O3 nanorods and deposition of very small gold particles in the pores for catalytic oxidation of CO

Ziyi Zhong; Judith Ho; Jaclyn Teo; Shoucang Shen; Aharon Gedanken

doi:10.1021/cm071165a

Synthesis of porous α-Fe₂O₃ nanorods and deposition of very small gold particles in the pores for catalytic oxidation of CO

Ziyi Zhong^*, Judith Ho, Jaclyn Teo, Shoucang Shen, Aharon Gedanken

^*Corresponding author for this work

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

165 Scopus citations

Abstract

FeO(OH) nanorods were prepared by a mild hydrothermal synthesis using tetraethylammonium hydroxide (TEAOH) as the structure director. The as-prepared FeO(OH) was converted to porous α-Fe₂O₃ nanorods via calcination at 300°C. The α-Fe₂O₃ nanorods have a pore size distribution in the range of 1-5 nm, which is ideal to house very small gold (Au) particles. Later, by employing our invented Au- colloid-method, in which lysine was used as the capping reagent and sonication was employed to facilitate the deposition of the Au particles, we inserted very small Au particles into these pores. The prepared Au/α-Fe₂O ₃-nanorod catalyst exhibited higher catalytic activity than the Au/α-Fe₂O₃ (Fluka) catalyst.

Original language	English
Pages (from-to)	4776-4782
Number of pages	7
Journal	Chemistry of Materials
Volume	19
Issue number	19
DOIs	https://doi.org/10.1021/cm071165a
State	Published - 18 Sep 2007
Externally published	Yes

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title = "Synthesis of porous α-Fe2O3 nanorods and deposition of very small gold particles in the pores for catalytic oxidation of CO",

abstract = "FeO(OH) nanorods were prepared by a mild hydrothermal synthesis using tetraethylammonium hydroxide (TEAOH) as the structure director. The as-prepared FeO(OH) was converted to porous α-Fe2O3 nanorods via calcination at 300°C. The α-Fe2O3 nanorods have a pore size distribution in the range of 1-5 nm, which is ideal to house very small gold (Au) particles. Later, by employing our invented Au- colloid-method, in which lysine was used as the capping reagent and sonication was employed to facilitate the deposition of the Au particles, we inserted very small Au particles into these pores. The prepared Au/α-Fe2O 3-nanorod catalyst exhibited higher catalytic activity than the Au/α-Fe2O3 (Fluka) catalyst.",

author = "Ziyi Zhong and Judith Ho and Jaclyn Teo and Shoucang Shen and Aharon Gedanken",

year = "2007",

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doi = "10.1021/cm071165a",

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journal = "Chemistry of Materials",

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TY - JOUR

T1 - Synthesis of porous α-Fe2O3 nanorods and deposition of very small gold particles in the pores for catalytic oxidation of CO

AU - Zhong, Ziyi

AU - Ho, Judith

AU - Teo, Jaclyn

AU - Shen, Shoucang

AU - Gedanken, Aharon

PY - 2007/9/18

Y1 - 2007/9/18

N2 - FeO(OH) nanorods were prepared by a mild hydrothermal synthesis using tetraethylammonium hydroxide (TEAOH) as the structure director. The as-prepared FeO(OH) was converted to porous α-Fe2O3 nanorods via calcination at 300°C. The α-Fe2O3 nanorods have a pore size distribution in the range of 1-5 nm, which is ideal to house very small gold (Au) particles. Later, by employing our invented Au- colloid-method, in which lysine was used as the capping reagent and sonication was employed to facilitate the deposition of the Au particles, we inserted very small Au particles into these pores. The prepared Au/α-Fe2O 3-nanorod catalyst exhibited higher catalytic activity than the Au/α-Fe2O3 (Fluka) catalyst.

AB - FeO(OH) nanorods were prepared by a mild hydrothermal synthesis using tetraethylammonium hydroxide (TEAOH) as the structure director. The as-prepared FeO(OH) was converted to porous α-Fe2O3 nanorods via calcination at 300°C. The α-Fe2O3 nanorods have a pore size distribution in the range of 1-5 nm, which is ideal to house very small gold (Au) particles. Later, by employing our invented Au- colloid-method, in which lysine was used as the capping reagent and sonication was employed to facilitate the deposition of the Au particles, we inserted very small Au particles into these pores. The prepared Au/α-Fe2O 3-nanorod catalyst exhibited higher catalytic activity than the Au/α-Fe2O3 (Fluka) catalyst.

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U2 - 10.1021/cm071165a

DO - 10.1021/cm071165a

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JO - Chemistry of Materials

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ER -

Synthesis of porous α-Fe₂O₃ nanorods and deposition of very small gold particles in the pores for catalytic oxidation of CO

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