A comparative study of the catalytic oxidation of HCHO and CO over Mn0.75Co2.25O4 catalyst: The effect of moisture

Yu Wang; Xiaobing Zhu; Mark Crocker; Bingbing Chen; Chuan Shi

doi:10.1016/j.apcatb.2014.06.011

A comparative study of the catalytic oxidation of HCHO and CO over Mn_0.75Co_2.25O₄ catalyst: The effect of moisture

Yu Wang, Xiaobing Zhu, Mark Crocker, Bingbing Chen, Chuan Shi

Chemistry

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

95 Scopus citations

Abstract

The influence of moisture on the activity and stability of Mn_0.75Co_2.25O₄ catalyst for HCHO and CO oxidation was compared and investigated. Totally opposite effects of relative humidity (RH) on the reactions were observed: with increase of RH (0-90%), the activity for HCHO oxidation was enhanced, whereas the activity for CO oxidation was greatly decreased. However, in both cases the catalyst lifetime was prolonged in the presence of moisture (RH=50%). Such modifications were directly evidenced by correlating in-situ DRIFTS data, TPO results and MS-IRAS studies, which clarified the effects of water on the activity and stability of Mn_0.75Co_2.25O₄ catalyst for HCHO and CO oxidation.

Original language	English
Pages (from-to)	542-551
Number of pages	10
Journal	Applied Catalysis B: Environmental
Volume	160-161
Issue number	1
DOIs	https://doi.org/10.1016/j.apcatb.2014.06.011
State	Published - Nov 2014

Bibliographical note

Funding Information:
The work was supported by the National Natural Science Foundation of China (Nos. 21073024 and 21373037 ).

Keywords

CO oxidation
HCHO oxidation
Stability
Water influence

ASJC Scopus subject areas

Catalysis
General Environmental Science
Process Chemistry and Technology

Access to Document

10.1016/j.apcatb.2014.06.011

Cite this

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title = "A comparative study of the catalytic oxidation of HCHO and CO over Mn0.75Co2.25O4 catalyst: The effect of moisture",

abstract = "The influence of moisture on the activity and stability of Mn0.75Co2.25O4 catalyst for HCHO and CO oxidation was compared and investigated. Totally opposite effects of relative humidity (RH) on the reactions were observed: with increase of RH (0-90%), the activity for HCHO oxidation was enhanced, whereas the activity for CO oxidation was greatly decreased. However, in both cases the catalyst lifetime was prolonged in the presence of moisture (RH=50%). Such modifications were directly evidenced by correlating in-situ DRIFTS data, TPO results and MS-IRAS studies, which clarified the effects of water on the activity and stability of Mn0.75Co2.25O4 catalyst for HCHO and CO oxidation.",

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AU - Wang, Yu

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AU - Crocker, Mark

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AU - Shi, Chuan

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AB - The influence of moisture on the activity and stability of Mn0.75Co2.25O4 catalyst for HCHO and CO oxidation was compared and investigated. Totally opposite effects of relative humidity (RH) on the reactions were observed: with increase of RH (0-90%), the activity for HCHO oxidation was enhanced, whereas the activity for CO oxidation was greatly decreased. However, in both cases the catalyst lifetime was prolonged in the presence of moisture (RH=50%). Such modifications were directly evidenced by correlating in-situ DRIFTS data, TPO results and MS-IRAS studies, which clarified the effects of water on the activity and stability of Mn0.75Co2.25O4 catalyst for HCHO and CO oxidation.

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KW - Stability

KW - Water influence

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