One of the most remarkable benefits of the microreactors is the achievement of more efficient processes by enhancing the heat and mass transfer phenomena, which is the key factor for processes intensification in chemical reactions, resulting in higher conversion, selectivity and yield towards desired products. Currently, the entire scenario of microreaction approach is an emergent technology and further advances are ongoing. Several strategies have been successfully applied for structuring processes that imply the fixation of the catalysts on the microreactors. However, there are features such as the physicochemical stability of the coatings under reaction conditions that must be improved, motivating the search for new protocols. This review provides a general overview of the most important methodologies applied for glass, quartz, polymers and metals microreactors manufacture and for their coating, analyzing the advantages and drawbacks of every procedure. Furthermore, an outline of the novel insights based on additive manufacturing techniques are described.

微反应器最显着的优点之一是通过增强传热和传质现象来实现更有效的过程，这是化学反应中过程强化的关键因素，从而导致向所需产物的转化率，选择性和产率更高。当前，微反应方法的整个场景是一种新兴技术，并且进一步的进步仍在进行中。已经成功地将几种策略用于结构化过程，这暗示了催化剂在微反应器上的固定。然而，有些特性如涂层在反应条件下的物理化学稳定性必须加以改善，从而促使人们寻找新的方案。这篇评论概述了适用于玻璃，石英，聚合物和金属微反应器的制造及其涂层，分析了每个程序的优缺点。此外，描述了基于增材制造技术的新颖见解的概述。