Nano Ru/CNTs: A highly active and stable catalyst for the generation of COx-free hydrogen in ammonia decomposition

Shuang Feng Yin; Bo Qing Xu; Ching Fai Ng; Chak Tong Au

doi:10.1016/j.apcatb.2003.10.013

Nano Ru/CNTs: A highly active and stable catalyst for the generation of CO_x-free hydrogen in ammonia decomposition

Shuang Feng Yin, Bo Qing Xu, Ching Fai Ng, Chak Tong Au^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

227 Citations (Scopus)

Abstract

Very small Ru nanoparticles on carbon nanotubes (CNTs) were prepared by means of impregnation and H₂-reduction. The CNTs-supported Ru nanoparticles are highly active and stable in catalyzing the decomposition of ammonia for the generation of CO_x-free hydrogen. The modification of Ru/CNTs with potassium ions leads to a remarkable improvement in the activity. The excellent catalytic performances of Ru/CNTs and K-Ru/CNTs are related to the high dispersion of Ru, and to the high graphitization and purity of CNTs.

Original language	English
Pages (from-to)	237-241
Number of pages	5
Journal	Applied Catalysis B: Environmental
Volume	48
Issue number	4
DOIs	https://doi.org/10.1016/j.apcatb.2003.10.013
Publication status	Published - 8 Apr 2004

Scopus Subject Areas

Catalysis
General Environmental Science
Process Chemistry and Technology

User-Defined Keywords

Ammonia decomposition
Carbon nanotube
Hydrogen generation
Nanocatalyst
Ruthenium

Access to Document

10.1016/j.apcatb.2003.10.013

Cite this

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title = "Nano Ru/CNTs: A highly active and stable catalyst for the generation of COx-free hydrogen in ammonia decomposition",

abstract = "Very small Ru nanoparticles on carbon nanotubes (CNTs) were prepared by means of impregnation and H2-reduction. The CNTs-supported Ru nanoparticles are highly active and stable in catalyzing the decomposition of ammonia for the generation of COx-free hydrogen. The modification of Ru/CNTs with potassium ions leads to a remarkable improvement in the activity. The excellent catalytic performances of Ru/CNTs and K-Ru/CNTs are related to the high dispersion of Ru, and to the high graphitization and purity of CNTs.",

keywords = "Ammonia decomposition, Carbon nanotube, Hydrogen generation, Nanocatalyst, Ruthenium",

author = "Yin, {Shuang Feng} and Xu, {Bo Qing} and Ng, {Ching Fai} and Au, {Chak Tong}",

note = "Funding Information: This work was supported by RGC, Hong Kong, China (Grant: HKBU 2037/00P). Xu thanks the Croucher Foundation for a visitorship.",

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doi = "10.1016/j.apcatb.2003.10.013",

language = "English",

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T1 - Nano Ru/CNTs

T2 - A highly active and stable catalyst for the generation of COx-free hydrogen in ammonia decomposition

AU - Yin, Shuang Feng

AU - Xu, Bo Qing

AU - Ng, Ching Fai

AU - Au, Chak Tong

N1 - Funding Information: This work was supported by RGC, Hong Kong, China (Grant: HKBU 2037/00P). Xu thanks the Croucher Foundation for a visitorship.

PY - 2004/4/8

Y1 - 2004/4/8

N2 - Very small Ru nanoparticles on carbon nanotubes (CNTs) were prepared by means of impregnation and H2-reduction. The CNTs-supported Ru nanoparticles are highly active and stable in catalyzing the decomposition of ammonia for the generation of COx-free hydrogen. The modification of Ru/CNTs with potassium ions leads to a remarkable improvement in the activity. The excellent catalytic performances of Ru/CNTs and K-Ru/CNTs are related to the high dispersion of Ru, and to the high graphitization and purity of CNTs.

AB - Very small Ru nanoparticles on carbon nanotubes (CNTs) were prepared by means of impregnation and H2-reduction. The CNTs-supported Ru nanoparticles are highly active and stable in catalyzing the decomposition of ammonia for the generation of COx-free hydrogen. The modification of Ru/CNTs with potassium ions leads to a remarkable improvement in the activity. The excellent catalytic performances of Ru/CNTs and K-Ru/CNTs are related to the high dispersion of Ru, and to the high graphitization and purity of CNTs.

KW - Ammonia decomposition

KW - Carbon nanotube

KW - Hydrogen generation

KW - Nanocatalyst

KW - Ruthenium

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