Inspired by the micro-nano structure on the surface of biological materials or living organisms, micro-nano structure has been widely investigated in the field of functional coatings. Due to its large specific surface area, porosity, and dual-scale structure, it has recently attracted special attention. The typical fabrication processes of micro-nano structured coatings include sol-gel, hydrothermal synthesis, chemical vapor deposition, etc. This paper presents the main features of a recent deposition and synthesis technique, liquid plasma spraying (LPS). LPS is an important technical improvement of atmospheric plasma spraying. Compared with atmospheric plasma spraying, LPS is more suitable for preparing functional coatings with micro-nano structure. Micro-nano structured coatings are mainly classified into hierarchical-structure and binary-structure. The present study reviews the preparation technology, structural characteristics, functional properties, and potential applications of LPS coatings with a micro-nano structure. The micro-nano structured coatings obtained through tailoring the structure will present excellent performances.

受生物材料或活生物体表面的微纳米结构的启发，微纳米结构已在功能涂料领域得到广泛研究。由于其大的比表面积，孔隙率和双尺度结构，它最近引起了特别的关注。微纳米结构涂层的典型制造工艺包括溶胶-凝胶，水热合成，化学气相沉积等。本文介绍了最新沉积与合成技术的主要特征，即液体等离子体喷涂（LPS）。LPS是大气等离子喷涂的一项重要技术改进。与大气等离子喷涂相比，LPS更适合制备具有微纳米结构的功能涂料。微纳米结构涂料主要分为分级结构和二元结构。本研究综述了具有微纳米结构的LPS涂料的制备技术，结构特征，功能特性和潜在应用。通过调整结构获得的微纳米结构涂层将表现出优异的性能。