Selective oxidation of cellulose into formic acid over heteropolyacid-based temperature responsive catalysts

Feng Shen, Ye Li, Xiaoya Qin, Haixin Guo, Jialu Li, Jirui Yang and Yongzhen Ding

Renewable Energy, 2022, vol. 185, issue C, 139-146

Abstract: Formic acid (FA) is one of the most promising vectors for sustainable hydrogen energy and it can be synthesized from renewable biomass resources. In this work, a range of heteropolyacid derived temperature-responsive catalysts (ChnH4-nPMo11VO40, n=1–3) were prepared by modifying H3PMo12O40 heteropolyacid with an oxidation site V5+ and temperature-responsive monomer choline chloride (Ch+), and used for the cascade conversion of biomass derived cellulose into FA via hydrolysis-oxidation in water. The ChH3PMo11VO40 with a Ch/H ratio of 1/3 exhibited an outstanding catalytic performance to give a 49.5% yield of FA at 165 °C after 3 h reaction time. Catalytic activity of ChnH4-nPMo11VO40 was found to be related to its amount of H+ and V5+, while the recyclable ability of ChnH4-nPMo11VO40 was found to be related to its amount of Ch+. The as-prepared catalyst could be perfectly recycled with a single decrease the temperature of reaction systems, and be reused four times with limit loss in catalytic activity. The developed temperature-responsive catalysts have both advantages of homogeneous catalyst and heterogeneous catalyst, which should have potential application in other reactions of lignocellulosic biomass valorization.

Keywords: Biomass derived; Organic acid; Catalytic oxidation; Homogeneous catalyst; Heterogeneous catalyst (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:185:y:2022:i:c:p:139-146

DOI: 10.1016/j.renene.2021.12.043

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