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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...

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Main Authors: Guo, Haixin, Li, Jialu, Xu, Siyu, Yang, Jirui, Chong, Gun Hean, Shen, Feng
Format: Article
Published: Elsevier 2023
Online Access:http://psasir.upm.edu.my/id/eprint/109135/
https://www.sciencedirect.com/science/article/pii/S0378382023000103
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spelling my.upm.eprints.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
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
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.
format Article
author Guo, Haixin
Li, Jialu
Xu, Siyu
Yang, Jirui
Chong, Gun Hean
Shen, Feng
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
author_facet Guo, Haixin
Li, Jialu
Xu, Siyu
Yang, Jirui
Chong, Gun Hean
Shen, Feng
author_sort Guo, Haixin
title 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_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_sort mo-modified mnox for the efficient oxidation of high-concentration glucose to formic acid in water
publisher Elsevier
publishDate 2023
url http://psasir.upm.edu.my/id/eprint/109135/
https://www.sciencedirect.com/science/article/pii/S0378382023000103
_version_ 1814054693948620800
score 13.211869

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