NO reduction with hydrogen over cobalt molybdenum nitride and molybdenum nitride: A comparison study

C. Shi; A. M. Zhu; X. F. Yang; C. T. Au

doi:10.1023/B:CATL.0000034284.53221.71

NO reduction with hydrogen over cobalt molybdenum nitride and molybdenum nitride: A comparison study

C. Shi, A. M. Zhu, X. F. Yang, C. T. Au^*

^*Corresponding author for this work

Department of Chemistry

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

27 Citations (Scopus)

Abstract

Cobalt molybdenum nitride (Co₃Mo₃N) and molybdenum nitride (Mo₂N) were investigated for the catalytic reduction of NO with H₂. The latter deactivated rapidly with time on stream, whereas the former remained active and stable over a test period of 30 h. The results of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and H ₂-temprature-programmed reduction (H₂-TPR) characterization indicated that the deactivation of Mo₂N was due to the bulk oxidation of Mo₂N to MoO₂. As for the Co ₃Mo₃N catalyst, despite partial decomposition into Mo ₂N and Co, it remained resistant to oxidation. The results suggest that compared to the monometallic nitride, the bimetallic one is more suitable for NO reduction with H₂.

Original language	English
Pages (from-to)	9-16
Number of pages	8
Journal	Catalysis Letters
Volume	97
Issue number	1-2
DOIs	https://doi.org/10.1023/B:CATL.0000034284.53221.71
Publication status	Published - Aug 2004

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Cobalt molybdenum nitride
Molybdenum nitride
NO reduction

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10.1023/B:CATL.0000034284.53221.71

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@article{cf9981b84dbb4ff688050abaffef9dc0,

title = "NO reduction with hydrogen over cobalt molybdenum nitride and molybdenum nitride: A comparison study",

abstract = "Cobalt molybdenum nitride (Co3Mo3N) and molybdenum nitride (Mo2N) were investigated for the catalytic reduction of NO with H2. The latter deactivated rapidly with time on stream, whereas the former remained active and stable over a test period of 30 h. The results of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and H 2-temprature-programmed reduction (H2-TPR) characterization indicated that the deactivation of Mo2N was due to the bulk oxidation of Mo2N to MoO2. As for the Co 3Mo3N catalyst, despite partial decomposition into Mo 2N and Co, it remained resistant to oxidation. The results suggest that compared to the monometallic nitride, the bimetallic one is more suitable for NO reduction with H2.",

keywords = "Cobalt molybdenum nitride, Molybdenum nitride, NO reduction",

author = "C. Shi and Zhu, {A. M.} and Yang, {X. F.} and Au, {C. T.}",

note = "Funding Information: The authors gratefully acknowledge the support of Hong Kong Baptist University (Grant FRG/00-01/II-45) and National Natural Science Foundation of China (No. 20203002).",

year = "2004",

month = aug,

doi = "10.1023/B:CATL.0000034284.53221.71",

language = "English",

volume = "97",

pages = "9--16",

journal = "Catalysis Letters",

issn = "1011-372X",

publisher = "Springer Netherlands",

number = "1-2",

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TY - JOUR

T1 - NO reduction with hydrogen over cobalt molybdenum nitride and molybdenum nitride

T2 - A comparison study

AU - Shi, C.

AU - Zhu, A. M.

AU - Yang, X. F.

AU - Au, C. T.

N1 - Funding Information: The authors gratefully acknowledge the support of Hong Kong Baptist University (Grant FRG/00-01/II-45) and National Natural Science Foundation of China (No. 20203002).

PY - 2004/8

Y1 - 2004/8

N2 - Cobalt molybdenum nitride (Co3Mo3N) and molybdenum nitride (Mo2N) were investigated for the catalytic reduction of NO with H2. The latter deactivated rapidly with time on stream, whereas the former remained active and stable over a test period of 30 h. The results of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and H 2-temprature-programmed reduction (H2-TPR) characterization indicated that the deactivation of Mo2N was due to the bulk oxidation of Mo2N to MoO2. As for the Co 3Mo3N catalyst, despite partial decomposition into Mo 2N and Co, it remained resistant to oxidation. The results suggest that compared to the monometallic nitride, the bimetallic one is more suitable for NO reduction with H2.

AB - Cobalt molybdenum nitride (Co3Mo3N) and molybdenum nitride (Mo2N) were investigated for the catalytic reduction of NO with H2. The latter deactivated rapidly with time on stream, whereas the former remained active and stable over a test period of 30 h. The results of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and H 2-temprature-programmed reduction (H2-TPR) characterization indicated that the deactivation of Mo2N was due to the bulk oxidation of Mo2N to MoO2. As for the Co 3Mo3N catalyst, despite partial decomposition into Mo 2N and Co, it remained resistant to oxidation. The results suggest that compared to the monometallic nitride, the bimetallic one is more suitable for NO reduction with H2.

KW - Cobalt molybdenum nitride

KW - Molybdenum nitride

KW - NO reduction

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U2 - 10.1023/B:CATL.0000034284.53221.71

DO - 10.1023/B:CATL.0000034284.53221.71

M3 - Journal article

AN - SCOPUS:3142767588

SN - 1011-372X

VL - 97

SP - 9

EP - 16

JO - Catalysis Letters

JF - Catalysis Letters

IS - 1-2

ER -

NO reduction with hydrogen over cobalt molybdenum nitride and molybdenum nitride: A comparison study

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