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

265 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

User-Defined Keywords

Ammonia decomposition
Carbon nanotube
Hydrogen generation
Nanocatalyst
Ruthenium

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10.1016/j.apcatb.2003.10.013

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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.",

year = "2004",

month = apr,

day = "8",

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

language = "English",

volume = "48",

pages = "237--241",

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TY - JOUR

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

UR - https://www.scopus.com/pages/publications/1642320332

U2 - 10.1016/j.apcatb.2003.10.013

DO - 10.1016/j.apcatb.2003.10.013

M3 - Journal article

AN - SCOPUS:1642320332

SN - 0926-3373

VL - 48

SP - 237

EP - 241

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

IS - 4

ER -

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

Abstract

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