Effects of iron precursors on the structure and catalytic performance of iron molybdate prepared by mechanochemical route for methanol to formaldehyde

Lingtao Kong; Shengtao Xu; Xue Liu; Chaofan Liu; Dandan Zhang; Ling Zhao

doi:10.1016/j.cjche.2020.03.009

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Effects of iron precursors on the structure and catalytic performance of iron molybdate prepared by mechanochemical route for methanol to formaldehyde

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Effects of iron precursors on the structure and catalytic performance of iron molybdate prepared by mechanochemical route for methanol to formaldehyde
- Chinese Journal of Chemical Engineering Issue 6, Pages: 1603-1611(2020)
- Affiliations：
  
  1. Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, College of Chemistry and Chemical Engineering, Xinjiang University,Urumqi,China,830046
  2. Key Laboratory of Oil and Gas Fine Chemicals of Education, College of Chemistry and Chemical Engineering, Xinjiang University,Urumqi,China,830046
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2020.03.009
  CLC：
- Published：2020
- Accepted：
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Lingtao Kong, Shengtao Xu, Xue Liu, et al. Effects of iron precursors on the structure and catalytic performance of iron molybdate prepared by mechanochemical route for methanol to formaldehyde[J]. Chinese Journal of Chemical Engineering, 2020, (6): 1603-1611.
DOI：

Lingtao Kong, Shengtao Xu, Xue Liu, et al. Effects of iron precursors on the structure and catalytic performance of iron molybdate prepared by mechanochemical route for methanol to formaldehyde[J]. Chinese Journal of Chemical Engineering, 2020, (6): 1603-1611. DOI： 10.1016/j.cjche.2020.03.009.

摘要

Abstract

Mechanochemical synthesis has been applied for many novel material preparations and gained more and more attention due to green and high-efficiency recently. In order to explore the influences of iron precursors on structure and performance of iron molybdate catalyst prepared by mechanochemical route

three typical and cheap iron precursors have been used in preparation of iron molybdate catalyst. Many characterization methods have been employed to obtain the physical and chemical properties of iron molybdate catalyst. Results indicate that iron precursors have the significant impact on the phase composition

crystal morphology and catalytic performance in the conversion of methanol to formaldehyde. It is hard to regulate the phase composition by changing Mo/Fe mole ratios for Fe

(SO

)

as iron precursor. In addition

as for Fe

(SO

)

the formaldehyde yield is lower than that from iron molybdate catalyst prepared with Fe(NO

)

·9H

O due to the reduction in Fe

(MoO

)

phase as active phase.

Based on mechanochemical and coprecipitation method

the solvent water could be a key factor for the formation of MoO

and Fe

(MoO

) for FeCl

·6H

O and Fe

(SO

)

as precursors. Iron molybdate catalyst prepared with Fe(NO

)

·9H

O by mechanochemical route

shows the best methanol conversion and formaldehyde yield in this reaction.

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