Synthesis of Fe2(MoO4)3/MoO3 Nanocatalysts by Solution Combustion Approach and Their Catalytic Performance for the Selective Oxidation of Methanol

Ji Hun Ri; Jong Hyok Kim; Hyon A Ri; Kwang Son Pak; Jun Ho Kim

Synthesis of Fe2(MoO4)3/MoO3 Nanocatalysts by Solution Combustion Approach and Their Catalytic Performance for the Selective Oxidation of Methanol

Ji Hun Ri, Jong Hyok Kim, Hyon A Ri, Kwang Son Pak, Jun Ho Kim | International Journal of Applied Nanotechnology | Vol 10, Issue 01 | pp. 37-47 | ISSN: 2455-8524

Abstract

The Fe 2 (MoO 4 ) 3 /MoO 3 nanocatalysts comprising Fe 2 (MoO 4 ) 3 nanoparticles supported on MoO 3 nanorods were synthesized via two-step solution combustion approach and their catalytic performance for the selective oxidation of methanol were evaluated. The materials have been characterised using electron microscopy, powder X-ray diffraction and Raman spectroscopy. First, MoO 3 nanoparticles were prepared by solution combustion reaction employing ammonium nitrate as oxidant, and ammonium molybdate as fuel and Mo source. The synthesized MoO 3 nanoparticles were found to have orthorhombic crystal structure and rod-like shape with width and thickness of 50-200 nm and length of 0.2-1 μm. Then, the MoO 3 nanorods were dispersed in aqueous solution of the ferric nitrate as oxidant and glycine as fuel, and combustion was performed to prepare MoFeO x /MoO 3 precursor particles. To investigate the formation process of Fe 2 (MoO 4 ) 3 phases on MoO 3 nanorods, the precursors were calcined at different temperatures of 300-500 °C for 2h. The Fe 2 (MoO 4 ) 3 phases were not formed on MoO 3 nanorods in samples calcined at 300 and 400 °C. The XRD patterns of the samples calcined at 300 and 400 °C were consistent with that of the uncalcined sample. The Fe 2 (MoO 4 ) 3 /MoO 3 nanocatalysts comprising Fe 2 (MoO 4 ) 3 nanoparticles supported on MoO 3 nanorods were synthesized when the precursor particles were calcined at 500 °C for 2h. The size of Fe 2 (MoO 4 ) 3 phases formed on MoO 3 nanorods was less than 40nm. The catalytic performance of the synthesized Fe 2 (MoO 4 ) 3 /MoO 3 nanocatalysts for the selective oxidation of methanol to formaldehyde were compared with commercial catalysts. Selectivity to formaldehyde of the synthesized Fe 2 (MoO 4 ) 3 /MoO 3 nanocatalyst was higher than that of the commercial catalyst.

Key words: Iron molybdate, Solution combustion, Molybdenum trioxide, Formaldehyde

Keywords

Iron molybdate, Molybdenum trioxide, Solution combustion

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How to cite this article

APA

Ri, J. H., Kim, J. H., Ri, H. A., Pak, K. S., & Kim, J. H. (2024). Synthesis of Fe2(MoO4)3/MoO3 Nanocatalysts by Solution Combustion Approach and Their Catalytic Performance for the Selective Oxidation of Methanol. International Journal of Applied Nanotechnology, 10(01), 37-47.

MLA

Ri, Ji Hun, et al. “Synthesis of Fe2(MoO4)3/MoO3 Nanocatalysts by Solution Combustion Approach and Their Catalytic Performance for the Selective Oxidation of Methanol.” International Journal of Applied Nanotechnology, vol. 10, no. 01, 2024, pp. 37-47.

Chicago

Ji Hun Ri, Jong Hyok Kim, Hyon A Ri, Kwang Son Pak, and Jun Ho Kim. “Synthesis of Fe2(MoO4)3/MoO3 Nanocatalysts by Solution Combustion Approach and Their Catalytic Performance for the Selective Oxidation of Methanol.” International Journal of Applied Nanotechnology 10, no. 01 (2024): 37-47.

Vancouver

Ri JH, Kim JH, Ri HA, Pak KS, Kim JH. Synthesis of Fe2(MoO4)3/MoO3 Nanocatalysts by Solution Combustion Approach and Their Catalytic Performance for the Selective Oxidation of Methanol. International Journal of Applied Nanotechnology. 2024;10(01):37-47.

BibTeX

@article{RiJH2024,
author = {Ji Hun Ri and Jong Hyok Kim and Hyon A Ri and Kwang Son Pak and Jun Ho Kim},
title = {Synthesis of Fe2(MoO4)3/MoO3 Nanocatalysts by Solution Combustion Approach and Their Catalytic Performance for the Selective Oxidation of Methanol},
journal = {International Journal of Applied Nanotechnology},
year = {2024},
volume = {10},
number = {01},
pages = {37--47},
issn = {2455-8524},
url = {https://journalspub.com/publication/ijan/article=8991}
}

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