Mo-modified MnOx for the efficient oxidation of high-concentration glucose to formic acid in water
Severe Mo-modified MnOx binary oxide catalysts were synthesized and served as highly active catalysts for the oxidation of glucose to formic acid in water. A maximum formic acid yield of 79% was achieved from glucose (10 g/L) over Mo(1)-MnOx at 160 ◦C after 90 min of reaction time. Even when the i...
| Main Authors: | , , , , , |
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| Format: | Article |
| Published: |
Elsevier
2023
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| Online Access: | http://psasir.upm.edu.my/id/eprint/109135/ |
| _version_ | 1848865292078284800 |
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| author | Guo, Haixin Li, Jialu Xu, Siyu Yang, Jirui Chong, Gun Hean Shen, Feng |
| author_facet | Guo, Haixin Li, Jialu Xu, Siyu Yang, Jirui Chong, Gun Hean Shen, Feng |
| author_sort | Guo, Haixin |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Severe Mo-modified MnOx binary oxide catalysts were synthesized and served as highly active catalysts for the
oxidation of glucose to formic acid in water. A maximum formic acid yield of 79% was achieved from glucose
(10 g/L) over Mo(1)-MnOx at 160 ◦C after 90 min of reaction time. Even when the initial glucose concentration
was 110 g/L, 54% of formic acid yield could be obtained with Mo(1)-MnOx, which was almost twice the yield
obtained with pristine MnOx as the catalyst. Characterization results showed that the low valence Mn (Mn2+ and
Mn3+) ions were the active sites and played key roles in the oxidation of glucose to formic acid. The introduction
of Mo could increase the content of low valence Mn (Mn2+ and Mn3+) ions and the adsorbed oxygen (Oads) ratio.
A mechanism study indicated that arabinose and glyoxylic acid were the dominant intermediates. Various carbohydrates (xylose, fructose, maltose, sucrose, cellobiose) with high initial concentration afforded formic acid
yields >45% demonstrating the potential of Mo(1)-MnOx for transforming lignocellulosic biomass to formic acid. |
| first_indexed | 2025-11-15T14:02:23Z |
| format | Article |
| id | upm-109135 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T14:02:23Z |
| publishDate | 2023 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1091352024-10-14T07:46:14Z http://psasir.upm.edu.my/id/eprint/109135/ Mo-modified MnOx for the efficient oxidation of high-concentration glucose to formic acid in water Guo, Haixin Li, Jialu Xu, Siyu Yang, Jirui Chong, Gun Hean Shen, Feng Severe Mo-modified MnOx binary oxide catalysts were synthesized and served as highly active catalysts for the oxidation of glucose to formic acid in water. A maximum formic acid yield of 79% was achieved from glucose (10 g/L) over Mo(1)-MnOx at 160 ◦C after 90 min of reaction time. Even when the initial glucose concentration was 110 g/L, 54% of formic acid yield could be obtained with Mo(1)-MnOx, which was almost twice the yield obtained with pristine MnOx as the catalyst. Characterization results showed that the low valence Mn (Mn2+ and Mn3+) ions were the active sites and played key roles in the oxidation of glucose to formic acid. The introduction of Mo could increase the content of low valence Mn (Mn2+ and Mn3+) ions and the adsorbed oxygen (Oads) ratio. A mechanism study indicated that arabinose and glyoxylic acid were the dominant intermediates. Various carbohydrates (xylose, fructose, maltose, sucrose, cellobiose) with high initial concentration afforded formic acid yields >45% demonstrating the potential of Mo(1)-MnOx for transforming lignocellulosic biomass to formic acid. Elsevier 2023-04 Article PeerReviewed Guo, Haixin and Li, Jialu and Xu, Siyu and Yang, Jirui and Chong, Gun Hean and Shen, Feng (2023) Mo-modified MnOx for the efficient oxidation of high-concentration glucose to formic acid in water. Fuel Processing Technology, 242. art. no. 107662. pp. 1-9. ISSN 0378-3820; ESSN: 1873-7188 https://www.sciencedirect.com/science/article/pii/S0378382023000103 10.1016/j.fuproc.2023.107662 |
| spellingShingle | Guo, Haixin Li, Jialu Xu, Siyu Yang, Jirui Chong, Gun Hean Shen, Feng Mo-modified MnOx for the efficient oxidation of high-concentration glucose to formic acid in water |
| title | Mo-modified MnOx for the efficient oxidation of high-concentration glucose to formic acid in water |
| title_full | Mo-modified MnOx for the efficient oxidation of high-concentration glucose to formic acid in water |
| title_fullStr | Mo-modified MnOx for the efficient oxidation of high-concentration glucose to formic acid in water |
| title_full_unstemmed | Mo-modified MnOx for the efficient oxidation of high-concentration glucose to formic acid in water |
| title_short | Mo-modified MnOx for the efficient oxidation of high-concentration glucose to formic acid in water |
| title_sort | mo-modified mnox for the efficient oxidation of high-concentration glucose to formic acid in water |
| url | http://psasir.upm.edu.my/id/eprint/109135/ http://psasir.upm.edu.my/id/eprint/109135/ http://psasir.upm.edu.my/id/eprint/109135/ |