Detection and Alkaline Stability of Substance in the 
Electrocatalytic Oxidation Process of 5-Hydroxymethylfurfural

Ling Han*; Yu-Ting Yue

doi:10.70711/itr.v2i3.6834

Detection and Alkaline Stability of Substance in the Electrocatalytic Oxidation Process of 5-Hydroxymethylfurfural

Ling Han*, Yu-Ting Yue

Abstract

Electrochemical oxidation is an important method for converting biomass platform molecule 5-hydroxymethylfurfural (HMF) into
high value-added products. This paper establishes an analyzing method for substance detection in the HMF electrochemical oxidation process.
A detailed investigation was conducted on the influence of control conditions such as the composition of the mobile phase and elution method
of high-performance liquid chromatography (HPLC) on the detection results of the standard sample. Finally, the control strategy of HPLC was
determined to be isocratic elution, and the elution conditions were as follows: the mobile phase consisted of inorganic phase (A, deionized
water+0.1 vol.% Trifluoroacetic acid) and organic phase (B, acetonitrile+0.1 vol.% Trifluoroacetic acid) with flow rate of VA/VB=95/5, and the
elution time is 20 minutes. Then, the standard samples of HMF and its oxidation products were tested, and a series of standard curves were obtained. Furthermore, the stability of HMF and its oxidation products under alkaline conditions were investigated. The research results showed
that KOH concentration, ambient temperature, and light conditions had a significant impact on the stability of HMF, with KOH concentration
having the most significant effect. In comparison, the products 5-hydroxymethyl-2-furancarboxylic acid (HMFCA) and 2, 5-furandicarboxylic
acid (FDCA) exhibited good alkali stability.

Keywords

5-hydroxymethylfurfural; Electro-oxidation; HPLC; Stability

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References

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DOI: http://dx.doi.org/10.70711/itr.v2i3.6834

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