Abstract Electrochemical methods are environmentally friendly and have unique advantages in the synthesis of organic chemicals. However, their implementation is limited due to the complex transport problems posed by traditional electrochemical reactors. Recently, the application of microreaction technology in electrosynthesis studies has reduced the transport distance of ions and increased the specific surface area of electrodes, leading to efficient, successive, and easily scaled-up electrosynthesis technologies. In this review article, engineering advantages of using microchannels in electrosynthesis are discussed from process enhancement perspective. Flow patterns and mass transfer behaviors in recently reported electrochemical microreactors are analyzed, and prototypes for the reactor scale-up are reviewed. As a relatively new research area, many scientific rules and engineering features of electrosynthesis in microreactors require elucidation. Potential research foci, considered crucial for the development of novel electrosynthesis technology, are therefore proposed.

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电化学微反应技术工程研究进展——有机化学品电合成新方法

摘要 电化学方法对环境友好，在有机化学品的合成中具有独特的优势。然而，由于传统电化学反应器带来的复杂传输问题，它们的实施受到限制。最近，微反应技术在电合成研究中的应用减少了离子的传输距离并增加了电极的比表面积，从而产生了高效、连续且易于放大的电合成技术。在这篇评论文章中，从工艺改进的角度讨论了在电合成中使用微通道的工程优势。分析了最近报道的电化学微反应器中的流动模式和传质行为，并审查了反应器放大的原型。作为一个相对较新的研究领域，微反应器中电合成的许多科学规则和工程特征需要阐明。因此，提出了被认为对开发新型电合成技术至关重要的潜在研究重点。