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Iron-doped CoO catalysts prepared by a surfactant-assisted method as effective catalysts for malic acid oxidative decarboxylation
Iron-doped Co 3 O 4 oxides prepared by a surfactant-assisted method exhibited good catalytic activity in malic acid conversion, and the oxygen defects associated with the presence of Co 2+ played a key role in catalyst activation for pyruvic acid production. The most active catalyst, for which the m...
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Published in: | Catalysis science & technology 2023-07, Vol.13 (15), p.442-4434 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | |
Online Access: | Get full text |
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Summary: | Iron-doped Co
3
O
4
oxides prepared by a surfactant-assisted method exhibited good catalytic activity in malic acid conversion, and the oxygen defects associated with the presence of Co
2+
played a key role in catalyst activation for pyruvic acid production. The most active catalyst, for which the malic acid conversion was 70% and the pyruvic acid yield was 24%, has an inverse spinel type structure (Fe
3+
replaces Co
2+
from tetrahedral sites, while Fe
2+
replaces Co
3+
from octahedral sites) as well as a small energy difference between the highest occupied orbital and the lowest unoccupied orbital (low band-gap,
E
g
). The catalyst with the highest Co
2+
loading showed the highest yield of pyruvic acid.
Iron-doped Co
3
O
4
oxides prepared by a surfactant-assisted method exhibited good catalytic activity in malic acid conversion, and the oxygen defects associated with the presence of Co
2+
played a key role in catalyst activation for pyruvic acid production. |
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ISSN: | 2044-4753 2044-4761 |
DOI: | 10.1039/d3cy00121k |