Electrochemical Valorization of Furfural to Maleic Acid
Electrochemical Valorization of Furfural to Maleic Acid
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DOI：
10.1021/acssuschemeng.8b02698
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发表时间：
2018-08-01
影响因子：
8.4
通讯作者：
Choi, Kyoung-Shin
中科院分区：
文献类型：
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作者：
Kubota, Stephen R.;Choi, Kyoung-Shin
马来酸（MA）是一种用于各种工业过程的平台化学品。在这项研究中，一种新的电化学氧化方法，可以转化糠醛，这是一个最重要的CS平台化学品来自纤维素生物质，MA的报道。该方法可以在常温常压下，在水介质中，不使用氧化剂，直接合成MA。酸性介质的使用，促进呋喃环在氧化过程中的开放，是形成MA的关键。PbO 2，MnO 2，和Pt，这是在酸性溶液中稳定的强氧化电位下，作为阳极糠醛氧化进行了研究。结果表明，PbO 2是唯一能将糠醛转化为MA的催化剂。糠醛电化学转化为马来酸酐的过程中，中间产物为2-呋喃醇。
Maleic acid (MA) is a platform chemical used for various industrial processes. In this study, a new electrochemical oxidation method that can convert furfural, which is one of the most important CS platform chemicals derived from cellulosic biomass, to MA is reported. This method can produce MA in aqueous media under ambient temperature and pressure without the use of oxidizing agents. The use of acidic media, which promotes opening of the furan ring during oxidation, was critical for the formation of MA. PbO2, MnO2, and Pt, which are stable in acidic solutions under strongly oxidizing potentials, were investigated as anodes for furfural oxidation. The results showed that PbO2 is the only catalyst that can convert furfural to MA as the major product. It was also revealed that the electrochemical conversion of furfural to MA proceeds with 2-furanol as an intermediate.