Two dimensional titanium carbide MXene has many excellent graphene-like properties, but its lamellar structure is liable to collapse when processing in aqueous solution or air under ambient conditions. Herein, three types of polymers with good biocompatibility and hydrophilicity were employed to tailor titanium carbide MXene. The resulting titanium carbide-polyvinylpyrrolidone, titanium carbide-polyvinyl alcohol and titanium carbide-polyacrylamide nanocomposites had very stable and porous layered structures. Electrochemical sensors based on the nanocomposites had a good linear range and low detection limit for catalytic oxidation of dopamine. This work demonstrates that titanium carbide-polymer nanomaterials exhibit good structural stability and electrocatalytic activity, and are good matrices for sensors.

二维碳化钛MXene具有许多优异的类石墨烯特性，但其层状结构在环境条件下在水溶液或空气中加工时容易坍塌。在此，采用具有良好生物相容性和亲水性的三种聚合物来定制碳化钛 MXene。所得碳化钛-聚乙烯吡咯烷酮、碳化钛-聚乙烯醇和碳化钛-聚丙烯酰胺纳米复合材料具有非常稳定的多孔层状结构。基于纳米复合材料的电化学传感器对多巴胺的催化氧化具有良好的线性范围和低检测限。这项工作表明碳化钛-聚合物纳米材料表现出良好的结构稳定性和电催化活性，是传感器的良好基质。