Silica nanochannel membranes, particularly those consisting of highly ordered and vertically aligned channels (designated as SNM for simplicity in this review), have recently emerged as a class of attractive nanomaterials, because of their controllable and tunable pore structure, large surface area, high selectivity, and permeability, as well as diverse promising applications. This review describes recent developments in the field of SNM and their applications in electrochemical analysis and molecular separation. We summarize and highlight (i) the synthesis and functionalization strategies; (ii) the basic properties with emphasis on the selectivity and permeability, and factors affecting them; (iii) electrochemical analysis based on the electrode-supported SNM in terms of electrostatic, hydrophobic extraction, size-exclusion, and anti-fouling effects; (iv) molecular separation using the flow-through SNM according to molecular properties (size, charge, and lipophilicity) and gated, rectified molecular transport. Finally, we present an outlook and perspective on the further applications of SNM in the relevant fields.

二氧化硅纳米通道膜，特别是由高度有序和垂直排列的通道组成的膜（在本综述中为简单起见，其名称为SNM）最近由于其可控和可调节的孔结构，大表面积，高选择性而成为一类有吸引力的纳米材料。 ，渗透率以及各种有希望的应用。这篇综述描述了SNM领域的最新发展及其在电化学分析和分子分离中的应用。我们总结并强调（i）综合和功能化策略；（ii）强调选择性和渗透性的基本性质，以及影响它们的因素；（iii）基于电极支撑的SNM的电化学分析，包括静电，疏水萃取，尺寸排阻，和防污效果；（iv）根据分子性质（大小，电荷和亲脂性）和门控，精馏的分子转运，使用流通式SNM进行分子分离。最后，我们对SNM在相关领域的进一步应用提出了看法和观点。