Tackling electrocatalytic oxidation of glycerol to dihydroxyacetone: A comprehensive review

IF 6.9 2区化学 Q1 CHEMISTRY, PHYSICAL Current Opinion in Electrochemistry Pub Date : 2025-02-01 DOI:10.1016/j.coelec.2025.101665

Fiammetta Vitulano , Fulvio Uggeri , Luciano Lattuada , Alessandro Minguzzi , Alberto Vertova

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Abstract

Biodiesel, developed as an alternative to natural fossils, is produced by a transesterification reaction. The main co-product of this reaction is represented by glycerol, whose production in 2020 exceeded 6 times the current demand. A consequence of the spreading of biodiesel market was a drop of glycerol price. This versatile biomass-derived compound can be used as an important raw material for the manufacture of valuable chemicals including dihydroxyacetone (DHA), which is the most high-valued glycerol-derived product. Despite all the research devoted to achieve selective oxidation of the secondary alcohol group, this issue remains a scientific challenge. Among several routes for glycerol valorization, electrochemistry is an attractive process as discussed in this review. After a short introduction, which describes non-electrochemical methods, electrochemical oxidations on precious (based on Pt, Pd, Au and Ag) and non-precious metal electrocatalysts is discussed, with a specific focus on selectivity towards DHA.

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甘油电催化氧化制二羟基丙酮：综述

生物柴油是作为天然化石的替代品而发展起来的，它是通过酯交换反应生产的。该反应的主要副产物是甘油，其产量在2020年超过当前需求的6倍。生物柴油市场扩大的一个后果是甘油价格下降。这种用途广泛的生物质衍生化合物可以作为制造有价值的化学品的重要原料，包括二羟基丙酮（DHA），这是最有价值的甘油衍生产品。尽管所有的研究都致力于实现仲醇基团的选择性氧化，但这个问题仍然是一个科学挑战。在甘油增值的几种途径中，电化学是一个有吸引力的过程。在简要介绍了非电化学方法之后，讨论了贵金属（基于Pt， Pd， Au和Ag）和非贵金属电催化剂的电化学氧化，特别关注对DHA的选择性。

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来源期刊

Current Opinion in Electrochemistry Chemistry-Analytical Chemistry

CiteScore

14.00

自引率

5.90%

发文量

272

审稿时长

73 days

期刊介绍： The development of the Current Opinion journals stemmed from the acknowledgment of the growing challenge for specialists to stay abreast of the expanding volume of information within their field. In Current Opinion in Electrochemistry, they help the reader by providing in a systematic manner: 1.The views of experts on current advances in electrochemistry in a clear and readable form. 2.Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications. In the realm of electrochemistry, the subject is divided into 12 themed sections, with each section undergoing an annual review cycle: • Bioelectrochemistry • Electrocatalysis • Electrochemical Materials and Engineering • Energy Storage: Batteries and Supercapacitors • Energy Transformation • Environmental Electrochemistry • Fundamental & Theoretical Electrochemistry • Innovative Methods in Electrochemistry • Organic & Molecular Electrochemistry • Physical & Nano-Electrochemistry • Sensors & Bio-sensors •