Issue 13, 2023

Active and durable copper phosphate catalysts modified with metal oxides for methane oxidation with oxygen into formaldehyde

Abstract

Copper phosphates as active catalysts for methane oxidation with O2 into formaldehyde were deposited on silica supports or dispersed with aluminum oxides in order to enhance their catalytic performance. Deposition of copper phosphates on silica led to the formation of α-Cu2P2O7 crystallites with small sizes, which improved the formaldehyde yield in the methane oxidation with O2. The addition of aluminum oxides into copper phosphates resulted in the formation of Cu3(PO4)2 and α-Cu2P2O7. These copper phosphates diluted with aluminum oxides showed high durability for the formaldehyde formation in the methane oxidation with O2 at 923 K. These modifications of the catalysts with silica supports or alumina additives resulted in the formation of small copper phosphates crystallites and the modification of the redox performance of copper phosphates.

Graphical abstract: Active and durable copper phosphate catalysts modified with metal oxides for methane oxidation with oxygen into formaldehyde

Supplementary files

Article information

Article type
Paper
Submitted
06 شوال 1444
Accepted
28 شوال 1444
First published
01 ذو الحجة 1444

Catal. Sci. Technol., 2023,13, 3859-3866

Active and durable copper phosphate catalysts modified with metal oxides for methane oxidation with oxygen into formaldehyde

M. Shimakawa and S. Takenaka, Catal. Sci. Technol., 2023, 13, 3859 DOI: 10.1039/D3CY00573A

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