Title : Upgrading of biomass-derived platform compound 5-hydroxymethylfurfural to high-value chemicals: An environment-friendly corrosion inhibitor
Abstract:
Biomass represents an important alternative feedstock, being abundant, inexpensive, widely available, and renewable. In the last years, the efficient utilization of the bio-platform molecules prepared form biomass to generate various valuable products has received much attention. 5-Hydroxymethylfurfural (HMF) has been considered as one of the most promising versatile biomass based platform molecules, which is synthesized through the dehydration of hexose and can be easily converted to versatile valuable chemicals, such as polymer monomer, fuel additive, fuel precursor, fine chemical and so on. Nevertheless, specific advances in metal anticorrosion of HMF have not been studied in detail. On the other hand, the traditional inorganic corrosion inhibitors, such as chromates, nitrites, and phosphates, can bring serious environmental pollution and ecological hazards problems due to the disadvantages of high toxicity and difficult degradation. And the organic corrosion inhibitors were limited by the harsh synthesis methods, high cost and by-products. Therefore, it is urgent to develop a kind of environment-friendly, conveniently prepared and efficient corrosion inhibitors, so that to meet the demand of environmental protection and sustainable development. Herein, we elaborately designed and synthesized a bio-based corrosion inhibitor, which was generated from 5-HMF. The weight loss experiments, electrochemical experiments, SEM analysis, and quantum chemical calculation suggested that this inhibitor is an efficient mixed-type corrosion inhibitor in 1M HCl solutions and the adsorption of this molecule on the mild steel sample surface is mainly a chemisorption progress. Notably, the inhibition efficiency of this bio-based inhibitor was enhanced at high temperature, and the in vivo experiment by a mouse model indicated the corrosion inhibitor shows low toxicity and high biological compatibility.
Audience Take Away
- An environment-friendly corrosion inhibitor was synthesised from the bio-based platform compound 5-hydroxymethylfurfural.
- The various properties of this bio-based corrosion inhibitor were studied through the weight loss experiments, electrochemical experiments, SEM analysis, and quantum chemical calculation.
- The in vivo experiment by a mouse model indicated the corrosion inhibitor is low toxic and shows high biological compatibility.
