In situ FTIR studies of NO reduction over carbon nanotubes (CNTs) and 1 wt.% Pd/CNTs

S. J. Wang; W. X. Zhu; D. W. Liao; C. F. Ng; C. T. Au

doi:10.1016/j.cattod.2004.06.101

In situ FTIR studies of NO reduction over carbon nanotubes (CNTs) and 1 wt.% Pd/CNTs

S. J. Wang, W. X. Zhu, D. W. Liao, C. F. Ng, C. T. Au^*

^*Corresponding author for this work

Department of Chemistry

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

36 Citations (Scopus)

Abstract

After treated in a flow of H₂ at 500 °C for 60 min, CNTs showed moderate sign of hydrogenation. Intense hydrogenation of CNTs occurred under similar treatment when 1wt.% of Pd was supported on CNTs. In situ FTIR investigation of NO (5000 ppm) interaction with hydrogenated CNTs showed the gradual removal of hydrogen from the sample. Surface adspecies such as OH, NO, NO₂, and NO₃ were observed over the hydrogenated 1 wt.% Pd/CNTs sample after the sample was exposed to pure NO at 500 °C for 15min. The results suggest that the Pd metal catalyzes the hydrogenation of CNTs, and NO reduction occurs over the hydrogenated CNTs.

Original language	English
Pages (from-to)	711-714
Number of pages	4
Journal	Catalysis Today
Volume	93-95
DOIs	https://doi.org/10.1016/j.cattod.2004.06.101
Publication status	Published - 1 Sept 2004
Event	Selections from the Presentations of the 3rd Asia-Pacific Congress - Dalian, China Duration: 12 Oct 2003 → 12 Oct 2003

Scopus Subject Areas

Catalysis
General Chemistry

User-Defined Keywords

1 wt.% Pd/CNTs
CNTs hydrogenation
NO reduction

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10.1016/j.cattod.2004.06.101

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@article{67331228659b446697eba375c5c99df1,

title = "In situ FTIR studies of NO reduction over carbon nanotubes (CNTs) and 1 wt.% Pd/CNTs",

abstract = "After treated in a flow of H2 at 500 °C for 60 min, CNTs showed moderate sign of hydrogenation. Intense hydrogenation of CNTs occurred under similar treatment when 1wt.% of Pd was supported on CNTs. In situ FTIR investigation of NO (5000 ppm) interaction with hydrogenated CNTs showed the gradual removal of hydrogen from the sample. Surface adspecies such as OH, NO, NO2, and NO3 were observed over the hydrogenated 1 wt.% Pd/CNTs sample after the sample was exposed to pure NO at 500 °C for 15min. The results suggest that the Pd metal catalyzes the hydrogenation of CNTs, and NO reduction occurs over the hydrogenated CNTs.",

keywords = "1 wt.% Pd/CNTs, CNTs hydrogenation, NO reduction",

author = "Wang, {S. J.} and Zhu, {W. X.} and Liao, {D. W.} and Ng, {C. F.} and Au, {C. T.}",

note = "Funding Information: We thank Profs. H.B. Zhang and G.D. Lin, Chemistry Department, Xiamen University, for providing the CNTs material. The work reported here was fully supported by a grant from the Research Grants Council of the Hong Kong Special Administration Region, PR China (Project No. HKBU 2037/00P).; Selections from the Presentations of the 3rd Asia-Pacific Congress ; Conference date: 12-10-2003 Through 12-10-2003",

year = "2004",

month = sep,

day = "1",

doi = "10.1016/j.cattod.2004.06.101",

language = "English",

volume = "93-95",

pages = "711--714",

journal = "Catalysis Today",

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publisher = "Elsevier",

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TY - JOUR

T1 - In situ FTIR studies of NO reduction over carbon nanotubes (CNTs) and 1 wt.% Pd/CNTs

AU - Wang, S. J.

AU - Zhu, W. X.

AU - Liao, D. W.

AU - Ng, C. F.

AU - Au, C. T.

N1 - Funding Information: We thank Profs. H.B. Zhang and G.D. Lin, Chemistry Department, Xiamen University, for providing the CNTs material. The work reported here was fully supported by a grant from the Research Grants Council of the Hong Kong Special Administration Region, PR China (Project No. HKBU 2037/00P).

PY - 2004/9/1

Y1 - 2004/9/1

N2 - After treated in a flow of H2 at 500 °C for 60 min, CNTs showed moderate sign of hydrogenation. Intense hydrogenation of CNTs occurred under similar treatment when 1wt.% of Pd was supported on CNTs. In situ FTIR investigation of NO (5000 ppm) interaction with hydrogenated CNTs showed the gradual removal of hydrogen from the sample. Surface adspecies such as OH, NO, NO2, and NO3 were observed over the hydrogenated 1 wt.% Pd/CNTs sample after the sample was exposed to pure NO at 500 °C for 15min. The results suggest that the Pd metal catalyzes the hydrogenation of CNTs, and NO reduction occurs over the hydrogenated CNTs.

AB - After treated in a flow of H2 at 500 °C for 60 min, CNTs showed moderate sign of hydrogenation. Intense hydrogenation of CNTs occurred under similar treatment when 1wt.% of Pd was supported on CNTs. In situ FTIR investigation of NO (5000 ppm) interaction with hydrogenated CNTs showed the gradual removal of hydrogen from the sample. Surface adspecies such as OH, NO, NO2, and NO3 were observed over the hydrogenated 1 wt.% Pd/CNTs sample after the sample was exposed to pure NO at 500 °C for 15min. The results suggest that the Pd metal catalyzes the hydrogenation of CNTs, and NO reduction occurs over the hydrogenated CNTs.

KW - 1 wt.% Pd/CNTs

KW - CNTs hydrogenation

KW - NO reduction

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U2 - 10.1016/j.cattod.2004.06.101

DO - 10.1016/j.cattod.2004.06.101

M3 - Conference article

AN - SCOPUS:4344699869

SN - 0920-5861

VL - 93-95

SP - 711

EP - 714

JO - Catalysis Today

JF - Catalysis Today

T2 - Selections from the Presentations of the 3rd Asia-Pacific Congress

Y2 - 12 October 2003 through 12 October 2003

ER -

In situ FTIR studies of NO reduction over carbon nanotubes (CNTs) and 1 wt.% Pd/CNTs

Abstract

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